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Insect galls of the xeric vegetation of Ilha do Cabo Frio (Arraial do Cabo, RJ, Brazil)

Galhas de insetos da vegetação xérica da Ilha do Cabo Frio (Arraial do Cabo, RJ, Brasil)

Abstracts

The xeric vegetation of Ilha do Cabo Frio (Arraial do Cabo, RJ) was investigated for insect galls, in May, June and August of 2012, totalizing 24 hours of field work. Forty-five morphotypes of insect galls were found on 29 species of host plant (25 genera and 18 families). Asteraceae and Myrtaceae were the most galled plant families. Leaves were the most galled plant organ, with ca. 62% of the total, followed by stems (ca. 22%). Globoid and fusiform galls were the most frequent with about 29% and 24%, respectively. The majority was glabrous (ca. 91%), and one-chambered (ca. 84%). Gallers of 30 morphotypes were determined. They belong to Diptera (Cecidomyiidae), and Lepidoptera. The former was the most frequent. Larvae of Muscomorpha (Diptera) (probably inquilines) were found in a single gall morphotype; parasitoids (Hymenoptera) in seven (ca. 15% of the total), and predators (pseudoscorpion) in a single one. As there is no previous data of insect galls of Ilha do Cabo Frio, all records presented here are new. The geographic distribution of nine species of gall midges (Diptera, Cecidomyiidae) is widened. For the first time, eleven plant species are recorded as host of galling insects, and 24 gall morphotypes are described.

galling insects; interaction insect-plant; host plants; island


A vegetação xérica da Ilha do Cabo Frio (Arraial do Cabo, RJ) foi investigada à procura de galhas de insetos em maio, junho e agosto de 2012, totalizando 24 horas de trabalho de campo. Quarenta e cinco morfotipos de galhas foram encontrados em 29 espécies de plantas hospedeiras (25 gêneros e 18 famílias). Asteraceae e Myrtaceae foram as famílias de planta com maior riqueza de galhas. Os órgãos vegetais mais galhados foram folha (cerca de 62% do total) e caule (cerca de 22%). Galhas globóides e fusiformes foram mais frequentes com cerca de 29% e 24%, respectivamente. A maioria era glabra (cerca de 91%) e unilocular (cerca de 84%). Os galhadores de 30 morfotipos foram determinados. Eles pertencem a Diptera (Cecidomyiidae) e Lepidoptera. Os primeiros foram mais frequentes. Larvas de Muscomorpha (Diptera) (provavelmente inquilinas) foram encontradas em um único morfotipo, parasitóides (Hymenoptera) em sete (cerca de 15% do total) e predadores (pseudoscorpiões) em um. Como não havia informação prévia de galhas de insetos na Ilha do Cabo Frio, todos os registros apresentados aqui são novos. A distribuição geográfica de nove espécies de Cecidomyiidae (Diptera) é ampliada. Pela primeira vez, onze espécies de plantas são assinaladas como hospedeiras de galhas e 24 morfotipos de galhas são descritos.

insetos galhadores; interação inseto-planta; plantas hospedeiras; ilha


Introduction

Galls are abnormal growth of plant tissues in response to a specific stimulus, usually produced by insects (Shorthouse & Rohfritsch 1992SHORTHOUSE, J.D. & ROHFRITSCH, O. 1992. Biology of insect induced galls. Oxford University Press, New York. PMCid:PMC1977397.). From an evolutionary point of view, galls can be seen as adaptations that allowed some insect taxa to feed on high quality tissues, and protect themselves from natural enemies and harsh abiotic factors (Price et al. 1986PRICE, P.W., WARING, G.L. & FERNANDES, G.W. 1986. Hypotheses on the adaptive nature of galls. P. Entomol. Soc. Wash 88:361-363.). The majority of galling insects are host-plant and plant-organ specific, and gall morphology is specific to each inducer (Floate et al. 1996FLOATE, K.D., FERNANDES, G.W. & NILSSON, J.A. 1996. Distinguishing intrapopulacional categories of plants by their insect faunas: galls on rabbitbrush. Oecologia 105:221-229.).

The main objective of this paper is to elaborate an inventory of the gall insects of Ilha do Cabo Frio (Arraial do Cabo, RJ, Brazil). Ilha do Cabo Frio is localized in the municipality of Arraial do Cabo, Far East of the State of Rio de Janeiro. The island has an elongate shape and spreads over an area of ca. 6.5 km2. The highest altitude is 390 m above sea level. The climate is semi-arid, with average temperature varying from 20° to 26 °C and 800mm of annual rain fall. It is part of the Cabo Frio Region, an important centre of plant diversity of the Neotropical region, due to the presence of several endemic taxaand unique plant communities, which are related to both a dry climate and a heterogeneous physical environment (Bohrer et al. 2009BOHRER, C.B.A., DANTAS, H.G.R., CRONEMBERGER, F.M., VICENS, R.S. & ANDRADE, S.F. 2009. Mapeamento da vegetação e do uso do solo no centro de diversidade vegetal de Cabo Frio, Rio de Janeiro, Brasil. Rodriguésia 60(1 01-023.). Fabaceae, Myrtaceae, Euphorbiaceae, Nyctaginaceae, Sapotaceae, and Sapindaceae are the most common plant families in the Cabo Frio Region (Farág 1999FARÁG, P.R.C. 1999. Estrutura dos estratos arbóreo de mata litorânea semicaducifólia sobre solo arenoso no município de Búzios-RJ. Dissertação de Mestrado em Botânica, Universidade Federal do Rio de Janeiro, 87p., Rizzini 1987). The vegetation of the Ilha do Cabo Frio is classified as dry seasonal forest (Bohrer et al. 2009BOHRER, C.B.A., DANTAS, H.G.R., CRONEMBERGER, F.M., VICENS, R.S. & ANDRADE, S.F. 2009. Mapeamento da vegetação e do uso do solo no centro de diversidade vegetal de Cabo Frio, Rio de Janeiro, Brasil. Rodriguésia 60(1 01-023.), and includes remnantes of the caatinga (Ururahy 1987URURAHY, J.C.C. 1987. Nota sobre uma formação fisionômica-ecológica disjunta da estepe nordestina na área do Pontal de Cabo Frio. Rev. Bras. Geogr. 49(4):25-29. http://dx.doi.org/10.2307/2109
http://dx.doi.org/10.2307/2109...
). Nowadays, the island is under the Brazilian Navy control.

Material and Methods

Insect galls were collected in May, June and August, 2012 along the pathway to the new beacon (23° 00′ 11″ S and 42° 00′ 21″ WO). The plants were investigated for insect galls during eight hours per month, totalizing 24 hours. All organs were examined, except for the subterraneous roots. Samples of host plants, preferably in the fertile state, were pressed in the field and later identified by MCS. The spelling of botanical species names and authorship were verified in http://www.theplantlist.org(accessed on 28 of November, 2012).

All gall morphotypes were photographed in field, using a digital photographic camera. Each morphotype was characterized based on shape (according to Isaias et al. 2013ISAIAS, R.M.S., CARNEIRO, R.G.S., OLIVEIRA, D.C. & SANTOS, J.C. 2013. Illustrated and Annotated Checklist of Brazilian Gall Morphotypes. Neotrop Entomol. 42:230-239. PMid:23949804. http://dx.doi.org/10.1007/s13744-013-0115-7
http://dx.doi.org/10.1007/s13744-013-011...
), color, presence or absence of trichomes, and number of internal chambers.

Immature insects were obtained by dissection of each kind of gall under a stereoscopic microscope. Pupal exuviae and adults were obtained by keeping samples of each gall morphotype individually in plastic pots layered at the bottom with damp cotton and covered by fine screening. All pots were checked daily for adults' emergence.

All insects were preserved in 70% alcohol. The gall midges (Diptera: Cecidomyiidae) were later mounted on slides for microscope, following the methodology of Gagné (1994)GAGNÉ, R.J. 1994. The gall midges of the neotropical region. Cornell University Press, Ithaca, New York, 352p.. The genera were determined based on the keys of Gagné (1994)GAGNÉ, R.J. 1994. The gall midges of the neotropical region. Cornell University Press, Ithaca, New York, 352p., and species were identified based on gall shape, host plant and original descriptions. All material is deposited in the collection of Museu Nacional (MNNRJ)/ Universidade Federal do Rio de Janeiro.

Results

In Ilha do Cabo Frio (Arraial do Cabo, RJ), 45 morphotypes of insect galls were found on 29 species of host plant (25 genera and 18 families) (Table 1). Asteraceae was the most galled plant family, followed by Myrtaceae, with seven and six gall morphotypes, respectively. The medium number of galls per host species was 1.55.

Table 1.
Distribution of the number of insect gall morphotypes per host plant family, and species in Ilha do Cabo Frio (Arraial do Cabo, RJ, Brazil).

Galls were recorded in leaves, stems, buds, tendrils and inflorescences. Leaves were the most galled plant organ, with ca. 62% of the total of the gall morphotypes, followed by stem (ca. 22%) (Table 2). Otherwise, galls on fruits and aerial roots were not found. All morphotypes occurred in a single plant organ, excepting by the fusiform galls on Tournefortia membranacea DC. (Boraginaceae), which were induced on stems and leaf petioles.

Table 2.
Distribution of insect gall morphotypes per plant organ in Ilha do Cabo Frio (Arraial do Cabo, RJ, Brazil).

The gall morphotypes were classified according to their shape in globoid (Figures 10, 14, 15, 18, 21, 25, 27, 31, 37, 39, 40, 43, and 45), fusiform (Figures 1, 2, 4, 6, 9,16, 19, 22, 28, 41, 44), lenticular (Figures 3, 7, 8, 29, 34, 36), linear (Figures 5, 13), marginal roll (Figures 11, 17,23, 32), ovoid (Figures 12, 26,30), leaf roll (Figures 20, 24), cylindrical (Figure 33), deformed leaf (Figure 35), rosette (Figure 38), and clavate (Figure 42). The globoid and fusiform shapes were the most frequent ones, with about 28% and 24%, respectively (Table 3). The majority was glabrous (41 morphotypes, ca. 91%), being the remainders (4 morphotypes, ca. 09%) hairy. About 84% (38 morphotypes) were one-chambered, being 13% (06 morphotypes) multi-chambered. A single morphotype was one or multi-chambered.

Figures 1–9
Insect galls of Ilha do Cabo Frio (Arraial do Cabo, RJ). 1) Stem gall onSchinnus terebinthifolium, 2) Vein gall on Baccharis bifrons, 3) Lenticular leaf gall on B. bifrons, 4) Stem swelling on B. bifrons, 5) Leaf gall on Cyrtocymura scorpioides, 6) Stem swelling on Dasyphyllum sp. nov., 7) Leaf gall on Dasyphyllumsp. nov., 8) Leaf gall on Trixis sp. nov., 9) Stem swelling onFridericia conjugata.

Figures 10–18
Insect galls of Ilha do Cabo Frio (Arraial do Cabo, RJ). 10) Globoid vein swelling on Handroanthus sp., 11) Marginal leaf roll onHandroanthus sp., 12) Inflorescence gall on Cordia curassavica, 13) Linear leaf gall on C. curassavica, 14) Bud gall on Tournefortia membranacea, 15) Stem swelling on T. membranacea, 16) Petiole swelling on T. membranacea., 17) Marginal leaf roll on Protium heptaphylum., 18) Stem swelling onSelenicereus setaceus.

Figures 19–27
Insect galls of Ilha do Cabo Frio (Arraial do Cabo, RJ). 19) Stem swelling onCapparis flexuosa, 20) Young leaf roll on Erythroxylum ovalifolium, 21) Leaf gall on E. ovalifolium, 22) Petiole swelling on Croton compressus, 23) Marginal leaf roll on C. compressus, 24) Leaf roll on Dalechampia micromeria, 25) Leaf gall on Copaifera cfr. sp., 26) Bud gall on Senegalia polyphylla, 27) Bud gall on Lamiaceae (not determined).

Figures 28–39
Insect galls of Ilha do Cabo Frio (Arraial do Cabo, RJ). 28) Leaf gall onHeteropterys chrysophylla, 29) Petiole swelling on Cissampelos pareira, 30) Leaf gall on Eugenia candolleana, 31) Leaf gall onEugenia punicifolia, 32) Marginal leaf roll on Eugenia sulcata, 33) Cylindrical leaf gall on Eugenia uniflora, 34) Lenticular leaf gall onE. uniflora, 35) Deformed leaf on E. uniflora, 36) Lenticular leaf gall on Guapira opposita, 37) Globoid leaf gall on G. opposita, 38) Bud gall on G. opposita, 39) Stem swelling onG. opposita.

Figures 40–45
Insect galls of Ilha do Cabo Frio (Arraial do Cabo, RJ). 40) Leaf gall onGuapira pernambucensis, 41) Stem swelling on Ximenia americana, 42) Leaf gall on Paullinia racemosa, 43) Leaf gall onLantana camara, 44) Stem swelling on L. camara, 45) Leaf gall on Lantana lilacina.

Table 3.
Distribution of insect gall morphotypes by shape in Ilha do Cabo Frio (Arraial do Cabo, RJ, Brazil).

The gall inducing insects of 30 morphotypes was determined: nine were identified in species, four in genera, 10 in family, and seven in order. The gallers belong to two insect orders: Diptera (Cecidomyiidae), and Lepidoptera. The former was the most frequent galling taxa, being responsible for 23 morphotypes (77% of the determined gallers) (Table 4), followed by Lepidoptera (ca. 23%). The galler of fifteen morphotypes cannot be determined, because the gall samples were collected without dwellers or occupied by parasitoids and predators.

Table 4.
Distribution of insect gall morphotypes by galling insect order in Ilha do Cabo Frio (Arraial do Cabo, RJ, Brazil).

Larvae of Muscomorpha (Diptera) (probably inquilines) were found in a single gall morphotype on Selenicereus setaceus (Salm-Dyck) A. Berger ex Werderm. (Cactaceae), whose inducer is Neolasioptera cerei(Rübsaamen, 1905) (Diptera: Cecidomyiidae).

Parasitoids (Hymenoptera) were obtained from seven morphotypes (ca. 15% of the total), and a predator (pseudoscorpion) from marginal leaf rolls ofHandroanthus sp. (Bignoniaceae). This is the first record of pseudoscorpions in galls on Bignoniaceae.

As there is no previous data of insect galls of Ilha do Cabo Frio, all records presented here are new. The geographic distribution of nine species of gall midges (Diptera, Cecidomyiidae) is widened to the municipality of Arraial do Cabo (RJ):Lopesia similis Maia, 2004; Neolasioptera cerei(Rübsaamen, 1905); Clinodiplosis profusaMaia, 2001MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
; Neolasioptera eugeniae Maia, 1993; Bruggmannia elongata Maia & Couri, 1993; Pisphondylia brasiliensis Couri & Maia, 1992; Proasphondylia guapirae Maia, 1993;Asphondylia communis Maia & Couri, 1993 and Schismatodiplosis lantanae Rübsaamen, 1916.

Eleven plant species are recorded for the first time as host of galling insects:Baccharis bifrons Baker, Cyrtocymura scorpioides (Lam.) H.Rob. (Asteraceae), Tournefortia membranacea DC. (Boraginaceae), Capparis flexuosa (L.) L. (Capparaceae), Dalechampia micromeria Baill. (Euphorbiaceae),Senegalia polyphylla (DC.) Britton & Rose (Fabaceae),Cissampelos pareira L. (Menispermaceae), Heteropterys chrysophylla (Lam.) DC. (Malpighiaceae), Eugenia candolleana DC., Eugenia punicifolia (Kunth) DC. (Myrtaceae), and Paullinia racemosa Wawra. Twenty-four gall morphotypes are described for the first time, the remainder was already known from other localities.

This is the second inventory of insect galls in Brazilian islands. The first one was developed in an protected area of Ilha Grande (Angra dos Reis, RJ), where 36 gall morphotypes were recorded on 22 plant species distributed in 16 families, being Myrtaceae and Asteraceae the most richest in number of gall morphotypes (Maia & Oliveira, 2010MAIA, V.C. & OLIVEIRA, J.C. 2010. Insect galls of the Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis, RJ). Biota Neotrop. 10(4): http://www.biotaneotropica.org.br/v10n4/en/abstract?inventory+bn04110042010.
http://www.biotaneotropica.org.br/v10n4/...
).

The following description of the insect galls were presented here under host plant families, genera and species in alphabetical order. They included gall morphological characterization, associated fauna and previous records in coastal areas of the Southeastern region of Brazil.

Anacardiaceae

Schinnus terebinthifolium Raddi

Fusiform stem swelling, brown, glabrous, one-chambered (Figure 1). Galler: Lepidoptera. Galls collected in August. Previous records: Bertioga (SP), Grumari and Cabo Frio (Rio de Janeiro, RJ). Refs.: Maia et at. (2008), Oliveira & Maia (2005)OLIVEIRA, J.C. & MAIA, V.C. 2005. Ocorrência e caracterização de galhas de insetos na restinga de Grumari (Rio de Janeiro, RJ, Brasil). Arq. Mus. Nac.l 63(4):669-675., Maia (2013)MAIA, V.C. 2013. Galhas de insetos em restingas da região sudeste do Brasil com novos registros. Biota Neotrop. 13(1):183-209. http://dx.doi.org/10.1590/S1676-06032013000100021
http://dx.doi.org/10.1590/S1676-06032013...
.

Asteraceae

Baccharis bifrons Baker (new record of host plant)

Fusiform vein swelling, green or yellowish, glabrous, one-chambered (Figure 2). Galler: Cecidomyiidae (Diptera) (1 larva de Cecidomyiidae on 23/V/2012). Galls collected in May. New gall morphotype.

Lenticular leaf gall, yellow, glabrous, one-chambered (Figure 3). Galler: not determined. Associated fauna: parasitoid (Hymenoptera: 1 adult on 25.VI.2012). Galls collected in May and June. New gall morphotype.

Fusiform stem swelling, green, glabrous, one-chambered (Figure 4). Galler: Lepidoptera. Galls collected in August. New gall morphotype.

Cyrtocymura scorpioides (Lam.) H.Rob. (new record of host plant)

Linear leaf gall, green, glabrous, one-chambered (Figure 5). Galler: Lepidoptera. Galls collected in May and June. New gall morphotype.

Dasyphyllum sp. (new record of host plant)

Fusiform stem swelling, brown, glabrous, one-chambered (Figure 6). Galler: not determined. Galls collected on May and August. New gall morphotype.

Lenticular leaf gall, green, green, glabrous, rugose, one-chambered (Figure 7). Galler: Lepidoptera (3 caterpillars on 27-28/VIII/2012). Galls collected in August. New gall morphotype.

Trixis sp. (new record of host plant)

Lenticular leaf gall, green, glabrous, one-chambered (Figure 8). Galler: not determined. Galls collected on June. New gall morphotype.

Bignoniaceae

Fridericia conjugata (Vell.) L. G. Lohmann

Fusiform tendril swelling, green, glabrous, one-chambered (Figure 9). Galler: Neolasioptera sp. (Diptera, Cecidomyiidae) (4 larvae on 26.VI.2012). Galls collected in June and August. Previous records: Maricá, Carapebus, Arraial do Cabo and Grumari (RJ) as Arrabidaea conjugata (Vell.) Mart. Refs.: Maia 2001MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
,Monteiro et al. (1994)MONTEIRO, R.F., FERRAZ, F.F.F., MAIA, V.C. & AZEVEDO, M.A.P. 1994. Galhas entomógenas em restingas: uma abordagem preliminar. In Anais do III Simpósio de Ecossistemas da Costa Brasileira: subsídios a um gerenciamento ambiental (S. Watanabe, coord.). ACIESP, São Paulo, v.3, p.210-220., Oliveira & Maia (2005)OLIVEIRA, J.C. & MAIA, V.C. 2005. Ocorrência e caracterização de galhas de insetos na restinga de Grumari (Rio de Janeiro, RJ, Brasil). Arq. Mus. Nac.l 63(4):669-675..

Handroanthus sp.

Globoid leaf vein swelling, green or yellowish, glabrous, one-chambered (Figure 10). Galler: Cecidomyiidae (Diptera). Associated fauna: parasitoids (2 larvae of Hymenoptera on 25.VI.2012). Galls collected in May, June and August.

Marginal leaf roll, green, glabrous, one-chambered (Figure 11). Galler: not determined. Associated fauna: predator (1 pseudoscorpion on 23/V/2012). Galls collected in May, June and August.

Boraginaceae

Cordia curassavica (Jacq.) Roem. & Schult.

Inflorescence ovoid gall, green, hairy, one-chambered (Figure 12). Galler: Asphondylia sp. (Diptera, Cecidomyidae) (1 pupal exuvia on 22/V/2012). Galls collected in May, June and July. Previous records: Bertioga (SP), Maricá, Carapebus and Cabo Frio (RJ). Refs.: Maia et al. (2008)MAIA, V.C., MAGENTA, M.A.G. & MARTINS, S.E. 2008. Ocorrência e caracterização de galhas de insetos em áreas de restinga de Bertioga (São Paulo, Brasil). Biota Neotrop. 8(1): http:/www.biotaneotropica.org.br/v8n1/PT
www.biotaneotropica.org.br/v8n1/PT...
, Maia (2001MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
, 2013)MAIA, V.C. 2013. Galhas de insetos em restingas da região sudeste do Brasil com novos registros. Biota Neotrop. 13(1):183-209. http://dx.doi.org/10.1590/S1676-06032013000100021
http://dx.doi.org/10.1590/S1676-06032013...
.

Linear leaf gall, green, glabrous, one-chambered (Figure 13). Galler: Not determined. Galls collected in June and July. New record of gall morphotype.

Tournefortia membranacea DC. (new record of host plant)

Globoid bud gall, green, glabrous, one-chambered (Figure 14). Galler: Cecidomyiidae (Diptera) (3 larvae on 22/V/2012, 1 larva and fragments of pupal exuviae on 27-28/VIII/2012). Associated fauna: inquiline (Lepidoptera: 1 caterpillar on 22/V/2012), and parasitoids (Hymenoptera: 5 pupae on 22.V.2012). Galls collected in May, June and August. New gall morphotype.

Globoid stem swelling, brown, glabrous, one or multi-chambered (Figure 15). Galler: Asphondylia sp. (Diptera, Cecidomyiidae) (1 pupa on 27-28/VIII/2012). Associated fauna: parasitoids (Hymenoptera: 3 pupae and 1 larva on 27-28/VIII/2012). Galls collected in June and August. New gall morphotype.

Fusiform stem and petiole swelling, green or brown, glabrous, one-chambered (Figure 16). Galler: not determined. Galls collected in June. New gall morphotype.

Burseraceae

Protium heptaphylum (Aubl.) Marchand

Marginal leaf roll, green, glabrous, one-chambered (Figure 17). Galler: Lopesia similis Maia, 2004 (Diptera, Cecidomyidae). Galls collected in May and June. Previous records: Carapebus (RJ). Ref.: Maia (2001)MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
.

Cactaceae

Selenicereus setaceus (Salm-Dyck) A. Berger ex Werderm.

Globoid stem swelling, green glabrous, multi-chambered (Figure 18). Galler: Neolasioptera cerei (Rübsaamen, 1905) (Diptera: Cecidomyiidae). Associated fauna: 2 larvae of Muscomorpha on 23/V/2012. Galls collected in May and August. Previous records: Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis), and Maricá (RJ). Refs.: Maia & Oliveira (2010)MAIA, V.C. & OLIVEIRA, J.C. 2010. Insect galls of the Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis, RJ). Biota Neotrop. 10(4): http://www.biotaneotropica.org.br/v10n4/en/abstract?inventory+bn04110042010.
http://www.biotaneotropica.org.br/v10n4/...
, Maia (2001)MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
.

Capparaceae

Capparis flexuosa (L.) L. (new record of host plant)

Fusiform stem swelling, brown, glabrous, one-chambered (Figure 19). Galler: Lepidoptera (1 catterpilar on 25/VI/2012). Galls collected in June. New gall morphotype.

Erythroxylaceae

Erythroxylum ovalifolium Peyr.

Young leaf roll, green, glabrous, one-chambered (Figure 20). Galler: Clinodiplosis sp. (Diptera: Cecidomyiidae). Galls collected in May and June. Previous records: Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis), Maricá and Carapebus (RJ). Refs.: Maia & Oliveira (2010)MAIA, V.C. & OLIVEIRA, J.C. 2010. Insect galls of the Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis, RJ). Biota Neotrop. 10(4): http://www.biotaneotropica.org.br/v10n4/en/abstract?inventory+bn04110042010.
http://www.biotaneotropica.org.br/v10n4/...
,Maia (2001)MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
.

Globoid leaf gall, green or yellowish, glabrous, one-chambered (Figure 21). Galler: Cecidomyiidae (Diptera). Associated fauna: fragments of Hymenoptera on 25/VI/2012. Galls collected in June and August. New record of gall morphotype.

Euphorbiaceae

Croton compressus Lam.

Fusiform petiole swelling, yellowish, glabrous, one-chambered (Figure 22). Galler: Lepidoptera (2 caterpillars on 23/V/2012). Galls collected on May, June and August. Previous record: Cabo Frio (RJ). Ref.: Maia 2013MAIA, V.C. 2013. Galhas de insetos em restingas da região sudeste do Brasil com novos registros. Biota Neotrop. 13(1):183-209. http://dx.doi.org/10.1590/S1676-06032013000100021
http://dx.doi.org/10.1590/S1676-06032013...
.

Marginal leaf roll, green, glabrous, one-chambered (Figure 23). Galler: not determined. Galls collected in June and August. New record of gall morphotype.

Dalechampia micromeria Baill. (new record of host plant)

Leaf roll, green, glabrous, one-chambered (Figure 24). Galler: not determined. Galls collected in June and August. New gall morphotype.

Fabaceae

Copaifera sp.

Globoid leaf gall, concave, yellow, glabrous, one-chambered (Figure 25). Galler: not determined. Galls collected in May.

Senegalia polyphylla (DC.) Britton & Rose (new record of host plant)

Ovoid bud gall, green or brown, glabrous, multi-chambered (Figure 26). Galler: Cecidomyiidae (Diptera) (3 adults and 1 larva on 22/V/ 2012). Galls collected in May, June and August. New gall morphotype.

Lamiaceae

Not determined

Globoid apical bud gall, green, with white trichomes, one-chambered (Figure 27) Galler: Cecidomyiidae (Diptera) (2 larvae on 25/VI/2012). Galls collected on May.

Malpighiaceae

Heteropterys chrysophylla (Lam.) DC. (new record of host plant)

Lenticular leaf gall (like a spot), brown, glabrous, one-chambered (Figure 28).Galler: not determined. Galls collected in May. New gall morphotype.

Menispermaceae

Cissampelos pareira L. (new record of host plant)

Fusiform petiole swelling, green, glabrous, multi-chambered (Figure 29). Galler: Cecidomyiidae (Diptera) (5 larvae on 27-28/VIII/2012). Galls collected in August. New gall morphotype.

Myrtaceae

Eugenia candolleana DC. (new record of host plant)

Ovoid leaf gall, brown, glabrous, multi-chambered (Figure 30). Galler: not determined. Associated fauna: parasitoids (Hymenoptera, 02 larvae on 23/V/2012). Galls collected in May. New gall morphotype.

Eugenia punicifolia (Kunth) DC. (new record of host plant)

Globoid leaf gall, green, glabrous, one-chambered (Figure 31). Galler: not determined. Galls collected in June and August. New gall morphotype.

Eugenia sulcata Spring ex Mart

Marginal leaf roll, green, glabrous, one-chambered (Figure 32). Galler: not determined. Galls collected in June. New record of gall morphotype. Maia et al. 2008MAIA, V.C., MAGENTA, M.A.G. & MARTINS, S.E. 2008. Ocorrência e caracterização de galhas de insetos em áreas de restinga de Bertioga (São Paulo, Brasil). Biota Neotrop. 8(1): http:/www.biotaneotropica.org.br/v8n1/PT
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recorded two bud galls on this plant species.

Eugenia uniflora L.

Cylindrical leaf gall, green or red, glabrous, one-chambered (Figure 33). Galler: Clinodiplosis profusaMaia, 2001MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
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(Diptera, Cecidomyidae). Galls collected in May, June and July. Previous records: Maricá and Grumari (RJ). Refs.: Maia (2001)MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
, Oliveira & Maia (2005)OLIVEIRA, J.C. & MAIA, V.C. 2005. Ocorrência e caracterização de galhas de insetos na restinga de Grumari (Rio de Janeiro, RJ, Brasil). Arq. Mus. Nac.l 63(4):669-675..

Lenticular leaf gall, yellowish peripherically and brown in the center, glabrous, one-chambered (Figure 34). Galler:Neolasioptera eugeniae Maia, 1993 (Diptera, Cecidomyidae). Galls collected in May, June and July. Previous records: Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis), Maricá and Grumari (RJ). Refs.: Maia & Oliveira (2010)MAIA, V.C. & OLIVEIRA, J.C. 2010. Insect galls of the Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis, RJ). Biota Neotrop. 10(4): http://www.biotaneotropica.org.br/v10n4/en/abstract?inventory+bn04110042010.
http://www.biotaneotropica.org.br/v10n4/...
, Maia (2001)MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
, Oliveira & Maia (2005)OLIVEIRA, J.C. & MAIA, V.C. 2005. Ocorrência e caracterização de galhas de insetos na restinga de Grumari (Rio de Janeiro, RJ, Brasil). Arq. Mus. Nac.l 63(4):669-675..

Deformed leaf, green or red, glabrous, one-chambered (Figure 35). Galler: not determined. Galls collected in June and July. New gall morphotype.

Nyctaginaceae

Guapira opposita (Vell.) Reitz.

Lenticular leaf gall, green, glabrous, one-chambered (Figure 36). Galler: Bruggmannia elongata Maia & Couri, 1993 (Diptera, Cecidomyidae) (1 pupal exuviae on 22/V/2012). Galls collected in May, June and August. Previous records: Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis, (RJ), Maricá (RJ), Cabo Frio (RJ), Bertioga (SP). Refs.: Maia & Oliveira (2010)MAIA, V.C. & OLIVEIRA, J.C. 2010. Insect galls of the Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis, RJ). Biota Neotrop. 10(4): http://www.biotaneotropica.org.br/v10n4/en/abstract?inventory+bn04110042010.
http://www.biotaneotropica.org.br/v10n4/...
, Maia (2001MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
, 2013)MAIA, V.C. 2013. Galhas de insetos em restingas da região sudeste do Brasil com novos registros. Biota Neotrop. 13(1):183-209. http://dx.doi.org/10.1590/S1676-06032013000100021
http://dx.doi.org/10.1590/S1676-06032013...
, Maia et al. (2008)MAIA, V.C., MAGENTA, M.A.G. & MARTINS, S.E. 2008. Ocorrência e caracterização de galhas de insetos em áreas de restinga de Bertioga (São Paulo, Brasil). Biota Neotrop. 8(1): http:/www.biotaneotropica.org.br/v8n1/PT
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.

Globoid leaf gall, green, yellow or red, glabrous, one-chambered (Figure 37). Galler: Cecidomyidae (Diptera) (2 larvae and 1 pupal exuviae on 22/V/2012). Galls collected in May and June. Previous records: Bertioga (SP). Ref.: Maia et al. 2008MAIA, V.C., MAGENTA, M.A.G. & MARTINS, S.E. 2008. Ocorrência e caracterização de galhas de insetos em áreas de restinga de Bertioga (São Paulo, Brasil). Biota Neotrop. 8(1): http:/www.biotaneotropica.org.br/v8n1/PT
www.biotaneotropica.org.br/v8n1/PT...
.

Rosette bud gall, green, glabrous, multi-chambered (Figure 38). Galler: Pisphondylia brasiliensis Couri & Maia, 1992 (Diptera, Cecidomyidae) (2 young larvae on 27-28/VIII/2012). Galls collected in May, June and August. Previous records: Bertioga (SP), and Maricá (RJ). Refs.: Maia et al. (2008)MAIA, V.C., MAGENTA, M.A.G. & MARTINS, S.E. 2008. Ocorrência e caracterização de galhas de insetos em áreas de restinga de Bertioga (São Paulo, Brasil). Biota Neotrop. 8(1): http:/www.biotaneotropica.org.br/v8n1/PT
www.biotaneotropica.org.br/v8n1/PT...
, Maia (2001)MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
.

Globoid stem swelling, green, glabrous, one-chambered (Figure 39). Galler: Proasphondylia guapirae Maia, 1993 (Diptera, Cecidomyidae). Galls collected in August. Previous records: Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis), Bertioga (SP), Maricá (RJ). Refs.: Maia & Oliveira (2010)MAIA, V.C. & OLIVEIRA, J.C. 2010. Insect galls of the Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Angra dos Reis, RJ). Biota Neotrop. 10(4): http://www.biotaneotropica.org.br/v10n4/en/abstract?inventory+bn04110042010.
http://www.biotaneotropica.org.br/v10n4/...
, Maia et al. (2008)MAIA, V.C., MAGENTA, M.A.G. & MARTINS, S.E. 2008. Ocorrência e caracterização de galhas de insetos em áreas de restinga de Bertioga (São Paulo, Brasil). Biota Neotrop. 8(1): http:/www.biotaneotropica.org.br/v8n1/PT
www.biotaneotropica.org.br/v8n1/PT...
, Maia (2001)MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
.

Guapira pernambucensis (Casar.) Lundell Globoid leaf gall, red, hairy, one-chambered (Figure 40). Galler: Cecidomyidae (Diptera) (1 pupal exuvia on 23/V/2012, and 2 adults on 26/VI/2012). Associated fauna: parasitoid (Hymenoptera: 1 adult on 26/VI/2012). Previous record: Parque Estadual Paulo César Vinha (Guarapari, ES). Ref.: Bregonci et al. (2010)BREGONCI, J.M., POLYCARPO, P.V. & MAIA, V.C. 2010. Insect galls of the Parque Estadual Paulo César Vinha (Guarapari, ES, Brazil). Biota Neotrop. 10(1): http://www.biotaneotropica.org.br/v10n1/en/abstract?inventory+bn01410012010.
http://www.biotaneotropica.org.br/v10n1/...
.

Olacaceae

Ximenia americana L.

Fusiform stem gall, brown, glabrous, one-chambered (Figure 41). Galler: Asphondylia communis Maia & Couri, 1993 (Diptera, Cecidomyiidae). Galls collected in June. Previous record: Maricá (RJ). Ref.: Maia (2001)MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
.

Sapindaceae

Paullinia racemosa Wawra (new record of host plant)

Clavate leaf gall, green, glabrous, one-chambered (Figure 42). Galler: Cecidomyiidae (Diptera). Galls collected in August.

Verbenaceae

Lantana camara L.

Globoid leaf gall, green, hairy, one-chambered (Figure 43). Galler: Schismatodiplosis lantanae Rübsaamen, 1916 (Diptera, Cecidomyidae) (3 third instar larvae in May, 2012 and 3 young larvae on 27-28/VIII/2012. Galls collected in May, June and August. Previous records: Maricá (RJ). Ref.: Maia (2001)MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
.

Fusiform stem swelling, brown, glabrous, multi-chambered (Figure 44). Galler: Lepidoptera. Galls collected in June and August. New gall morphotype.

Lantana lilacina Desf.

Globoid leaf vein swelling, green, hairy, one-chambered (Figure 45). Galler: Not determined. Associated fauna: parasitoid (Hymenoptera) (1 adult on 25.VI.2012). Galls collected in June. New gall morphotype.

Discussion

The vegetation of Ilha do Cabo Frio (Arraial do Cabo, RJ) presented 45 insect gall morphotypes. In other inventories in the Southeastern region of Brazil, the number of morphotypes varies a lot, being 132 the highest value and 36 the lowest (Table 5). As the frequency of the field works and the extension of the surveyed areas differed in these inventories, these values cannot be adequately compared. In spite of the methodological differences, the medium of gall morphotypes per host plant varied little (from 2.0 to 1.6). This result suggests that host plant species have a supporting capacity for galls (Table 5).

Table 5.
Number of insect gall morphotypes and medium of gall morphotypes per plant species in six localities of the Southeastern region of Brazil.

Asteraceae and Myrtaceae were pointed as the richest plant families in number of gall morphotypes. All other gall inventories in coastal areas of the Southern region of Brazil (Bertioga, Reserva Biológica Estadual da Praia do Sul in Ilha Grande, Grumari, Maricá, Carapebus, Arraial do Cabo, and Parque Estadual Paulo Cesar Vinha in Guarapari) indicated Myrtaceae as the most or one of the galled family, whereas Asteraceae were indicated only in two inventories (Bertioga and Reserva Biológica Estadual da Praia do Sul). The importance of Myrtaceae for restinga flora characterization is well known, beingEugenia the biggest genus in number of species (Rizzini 1979RIZZINI, C.T. 1979. Tratado de Fitogeografia do Brasil. São Paulo, Hucite, v.2, 54p.). Asteraceae are the one of the best represented plant family in Bertioga (Martins et al. 2008MARTINS, S.E., ROSS, L., SAMPAIO, P.S.P. & MAGENTA, M.A.G. 2008. Caracterização florística de comunidades vegetais de restinga em Bertioga, SP, Brasil. Acta Bot. Bras. 22(1):249-274. http://dx.doi.org/10.1590/S0102-33062008000100024
http://dx.doi.org/10.1590/S0102-33062008...
), differing from Reserva Biológica Estadual da Praia do Sul, where this family is represented by few species (Araújo & Oliveira 1988ARAÚJO, D. S. D. & OLIVEIRA, R. R. 1988. Reserva Biológica Estadual da Praia do Sul (Ilha Grande, Estado do Rio de Janeiro): lista preliminar da flora. Acta Bot. Bras. 1(2):83-94. Suplemento.). As the flora knowledge of the latter locality is still preliminary, Asteraceae can comprise more species than those already recorded. According to the plant diversity hypothesis (Fernandes 1992FERNANDES, G.W. 1992. Plant family size and age effects on insular gallforming species richness. Glob. Ecol. Biogeogr. Let. 2:71-74. http://dx.doi.org/10.2307/2997508
http://dx.doi.org/10.2307/2997508...
), the greatest richness of galls is showed by the most speciose plant families of each area. Our results corroborate this hypothesis.

Galls were found mainly in leaves. This is a world pattern pointed by Mani (1964)MANI, M.S. 1964. Ecology of plant galls. W. Junk, The Hague, 434p. and corroborated in several galls inventories (Maia 2001MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
, Maia & Fernandes 2004MAIA, V.C. & FERNANDES, G.W. 2004. Insect galls from Serra de São José (Tiradentes, MG, Brazil). Braz. J. Biol. 64(3):1-22., Maia et al. 2008MAIA, V.C., MAGENTA, M.A.G. & MARTINS, S.E. 2008. Ocorrência e caracterização de galhas de insetos em áreas de restinga de Bertioga (São Paulo, Brasil). Biota Neotrop. 8(1): http:/www.biotaneotropica.org.br/v8n1/PT
www.biotaneotropica.org.br/v8n1/PT...
, Maia 2011MAIA, V.C. 2011. Characterization of insect galls, gall makers, and associated fauna of Platô Bacaba (Porto de Trombetas, Pará, Brazil). Biota Neotrop. 11(4): http://www.biotaneotropica.org.br/v11n4/en/abstract?article+bn00511042011.
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).

Fusiform and globoid galls were pointed as the most common in the present paper. The predominance of globoid galls has been also pointed in other inventories, as well as fusiform galls. Glabrous and one-chambered galls were also predominant (Maia 2001MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
, 2011MAIA, V.C. 2011. Characterization of insect galls, gall makers, and associated fauna of Platô Bacaba (Porto de Trombetas, Pará, Brazil). Biota Neotrop. 11(4): http://www.biotaneotropica.org.br/v11n4/en/abstract?article+bn00511042011.
http://www.biotaneotropica.org.br/v11n4/...
, Araújo et al. 2007ARAÚJO, W.S., GOMES-KLEIN, V.L. & SANTOS, B.B. 2007. Galhas Entomógenas Associadas à Vegetação do Parque Estadual da Serra dos Pireneus, Pirenópolis, Goiás, Brasil. R. Bras. Bioci. 5(supl. 1):45-47., Bregonci et al. 2010BREGONCI, J.M., POLYCARPO, P.V. & MAIA, V.C. 2010. Insect galls of the Parque Estadual Paulo César Vinha (Guarapari, ES, Brazil). Biota Neotrop. 10(1): http://www.biotaneotropica.org.br/v10n1/en/abstract?inventory+bn01410012010.
http://www.biotaneotropica.org.br/v10n1/...
,Carneiro et al. 2009CARNEIRO, M.A.A., BORGES, R.A.X., ARAÚJO, A.P.A. & FERNANDES, G.W. 2009. Insetos indutores de galhas da porção sul da Cadeia do Espinhaço, Minas Gerais, Brasil. Rev. Bras. Entomol. 53(4):570-592. http://dx.doi.org/10.1590/S0085-56262009000400007
http://dx.doi.org/10.1590/S0085-56262009...
), suggesting that this is the most common gall morphology in Brazilian biomes.

In spite of galling insects being found among six orders (Diptera, Lepidoptera, Coleoptera, Thysanoptera, Hemiptera and Hymenoptera), only dipterous, and lepidopterous galls were recorded in Ilha do Cabo Frio. Diptera are the most frequent galling order in all zoogeographic regions (Felt 1940FELT, E.P. 1940. Plant galls and gall makers. Ithaca, 364p.), Lepidoptera are the second in the Neotropical region (Maia 2006MAIA, V.C. 2006. Galls of Hemiptera, Lepidoptera and Thysanoptera from Central and South America. Pub. Avul. Mus. Nac. 110:01-24.).

The occurrence of parasitoids, predators, inquilines and successors in insect galls is very common (Maia 2001MAIA, V.C. 2001. The gall midges (Diptera, Cecidomyiidae) from three restingas of Rio de Janeiro State, Brazil. Rev. Bras. Zool. 18(2):583-629. http://dx.doi.org/10.1590/S0101-81752001000200028
http://dx.doi.org/10.1590/S0101-81752001...
, Maia & Fernandes 2004MAIA, V.C. & FERNANDES, G.W. 2004. Insect galls from Serra de São José (Tiradentes, MG, Brazil). Braz. J. Biol. 64(3):1-22.). In Ilha do Cabo Frio, parasitoids were less frequent than in other surveyed areas of the State of Rio de Janeiro (Table 6). Otherwise, the presence of pseudoscorpions is very rare. Only two previous records are known in Brazil, one in bud galls induced by Stephomyia rotundifolium Maia, 1993 (Diptera, Cecidomyiidae) on Eugenia adstringens Cambess. (=Eugenia rotundifolia Casar) (Myrtaceae) and the other in stem galls induced by Houardodiplosis rochaeTavares, 1925 (Diptera, Cecidomyiidae) on Combretum leprosum Mart & Eicher (Combretaceae). Besides, two records are known from Africa, both in stem galls of Poaceae (Judson & Heurtault 1996).

Table 6.
Frequency of parasitoids associated with insect galls in two coastal areas of the Southeastern region of Brazil.

Little is known about insect galls in Brazilian islands, as only two areas were investigated: Reserva Biológica Estadual da Praia do Sul, in Ilha Grande (Angra dos Reis, RJ), and Ilha do Cabo Frio (Arraial do Cabo, RJ). In both surveys, Asteraceae and Myrtaceae were the richest plant families in gall diversity. These families are well represented in these islands, suggesting that the plant richness is associated with gall diversity, as proposed by Southwood (1960SOUTHWOOD, T.R.E. 1960. The abundance of the Hawaiian trees and the number of their associated insect species. Proc. Hawaii. Entomol. Soc. 17:299-303., 1961)SOUTHWOOD, T.R.E. 1961. The number of insect associated with various trees. J. Anim. Ecol. 30:1-8. http://dx.doi.org/10.2307/2109
http://dx.doi.org/10.2307/2109...
.

Conclusion

The insect galls inventory of Ilha do Cabo Frio (Arraial do Cabo, RJ) corroborates the patterns already known in relation to galled plant organs, gall shape, galling taxa and host plant families. The geographic distribution of nine species of gall midges (Diptera, Cecidomyiidae) is widened. For the first time, eleven plant species are recorded as host of galling insects, pseudoscorpions are recorded in galls on Bignoniaceae, and 24 gall morphotypes are described.

We are grateful to the Brazilian Navy for infrastructure, Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for financial support (Proc. 300237/2010–3) and Dr. Debora Medeiros (Museu Nacional) for Euphorbiaceae identification.

References

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Publication Dates

  • Publication in this collection
    Sept 2013

History

  • Received
    5 Apr 2013
  • Reviewed
    28 June 2013
  • Accepted
    16 Aug 2013
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