A new species of Masteria (Araneae: Dipluridae: Masteriinae) from southeastern Brazil

Denis Rafael Pedroso Renner Luiz Cerqueira Baptista Rogério Bertani About the authors

Abstract

A new species of Masteria L. Koch, 1873 from iron ore caves at Caeté and Santa Bárbara, state of Minas Gerais, Brazil, Masteria emboaba sp. nov., is described. It was collected inside caves and in the litter of nearby dry forests. It is the first masteriine species described from southeastern Brazil and the second masteriine species for the country. The new species is the only known Masteria with only two eyes. Additionally, the male of M. emboaba sp. nov. has only two regular, thin spines at the apex of tibia I, lacking the tibial apophysis found in most other Masteria species. The only other described Masteria species that has spines in the place of tibial apophysis is M. aimeae (Alayón, 1995) from Cuba; however, the last species has a longer and sinuous embolus, contrasting the embolus of M. emboaba sp. nov., which is much smaller, less sinuous and transversally placed. The only other described Brazilian species, M. manauara Bertani, Cruz & Oliveira, 2013, has a double tibial apophysis, with both ends tipped by a strong, short spine, and a very long embolus, parallel to the bulb.

Iron ore; lateritic cave; Minas Gerais; Mygalomorphae; Serra da Gandarela


Masteria L. Koch, 1873 belongs to Dipluridae, Masteriinae (Raven 1985Raven RJ (1985) The spider infraorder Mygalomorphae (Araneae): Cladistics and systematics. Bulletin of the American Museum of Natural History 182: 1-180.), which contains many of the smallest mygalo morph species known (Raven 1979Raven RJ (1979) Systematics of the mygalomorph spider genus Masteria (Masteriinae: Dipluridae: Arachnida). Australian Journal of Zoology 27: 623-636., 1981Raven RJ (1981) Three new mygalomorph spiders (Dipluridae, Masteriinae) from Colombia. Bulletin of the American Museum of Natural History 170: 57-63., Raven & Platnick 1981Raven RJ, Platnick NI (1981) A revision of the American spiders of the family Microstigmatidae (Araneae, Mygalomorphae). American Museum Novitates 2707: 1-20., Platnick & Foster 1982Platnick NI, Foster RR (1982) On the Micromygalinae, A New Subfamily of Mygalomorph Spiders (Araneae, Microstigma tidae). American Museum Novitates 2734: 1-13.). The 23 described species are widely distributed in the Australasian Region and in the New World (Platnick 2014Platnick NI (2014) The World Spider Catalog, version 15. American Museum of Natural History, online at http://research.amnh.org/entomology/spiders/catalog/index.html. doi: 10.5531/db.iz.0001
http://research.amnh.org/entomology/spid...
). The Australasian region has eight species, including the type species, M.hirsuta L. Koch, 1873, from the Fiji Islands and Micronesia. In the New World, there are 15 described species: M. aimeae (Alayón, 1995) and M. golovatchi Alayón, 1995 - Cuba; M. lewisi (Chickering, 1964) and M. pecki Gertsch, 1982 - Jamaica; M. petrunkevitchi (Chickering, 1964) - Puerto Rico; M. modesta (Simon, 1891) - Saint Vincent; M. barona (Chickering, 1966) and M. simla (Chickering, 1966) - Trinidad; M. downeyi (Chickering, 1966) and M. spinosa (Petrunkevitch, 1925) - Costa Rica and Panama; M. colombiensis Raven, 1981 - Colombia; M. cyclops (Simon, 1889), M. lucifuga (Simon, 1889) and M. tovarensis (Simon, 1889) - Venezuela. Finally, a single species is known from Brazil (state of Amazonas), M. manauara Bertani, Cruz & Oliveira, 2013. It inhabits the ground litter (Bertani et al. 2013Bertani R, Cruz WR, Oliveira MEES (2013) Masteria manauara sp. nov., the first masteriine species from Brazil (Araneae: Dipluridae: Masteriinae). Zoologia 30(4): 437-440. doi: 10.1590/S1984-46702013000400010
https://doi.org/10.1590/S1984-4670201300...
), particularly amongst the leaves of small palm trees.

Besides M. manaura, there are records of an unidentified Masteria species from the state of Piauí (L.S. Carvalho unpubl. data) and several areas of the state of Minas Gerais: Nova Lima (AngloGold Ashanti 2009), Conceição de Mato Dentro (Leão & Auler 2012Leão MR, Auler AS (2012) Pedido de Supressão da Cavidade ASS-01, Serra do Sapo - Conceição do Mato Dentro. Belo Horizonte, Carste Consultores Associados, Relatório Técnico, 22p.), Caeté and Santa Bárbara (Coelho et al. 2010Coelho A, Piló LB, Auler AS, Bessi R (2010) Espeleologia da área do Projeto Apolo, Quadrilátero Ferrífero, MG. Belo Horizonte, Carste Consultores Associados, Relatório Técnico, 179p.). The records from Minas Gerais are based on material collected in and around caves in iron ore deposits.

There are more than 3,000 caves in iron ore deposits in Brazil (Auler et al. 2014Auler AS, Piló LB, Parker CW, Senko JM, Sasowsky ID, Barton HA (2014) Hypogene cave patterns in iron ore caves: convergence of forms or processes? Karst Waters Institute Special Publication 18: 15-19.). Most of these caves are located at the two major iron ore provinces: Carajás ridge, in the Amazon, and Iron Quadrangle, in Minas Gerais, southeastern Brazil. The Iron Quadrangle caves are found on iron-rich deposits topped by "canga", an iron-rich breccia surface cemented by ferruginous matrix (Auler et al. 2014Auler AS, Piló LB, Parker CW, Senko JM, Sasowsky ID, Barton HA (2014) Hypogene cave patterns in iron ore caves: convergence of forms or processes? Karst Waters Institute Special Publication 18: 15-19.). The vegetation of the "canga" areas is open grassland with scattered trees and is dominated by herbs and bushes. The alfa and beta diversity of plant species is high, including dozens of rare and endemic species (Carmo & Jacobi 2013Carmo FF, Jacobi CM (2013) A vegetação de canga no Quadrilátero Ferrífero, Minas Gerais: caracterização & contexto fitogeográfico. Rodriguesia 64(3): 527-541. doi: 10.1590/S2175-78602013000300005
https://doi.org/10.1590/S2175-7860201300...
). The plant species are a mix of elements from the Atlantic Forest, Cerrado and Serra do Espinhaço (Carmo & Jacobi 2013Carmo FF, Jacobi CM (2013) A vegetação de canga no Quadrilátero Ferrífero, Minas Gerais: caracterização & contexto fitogeográfico. Rodriguesia 64(3): 527-541. doi: 10.1590/S2175-78602013000300005
https://doi.org/10.1590/S2175-7860201300...
).

Despite the small average size of iron ore caves, they have "a high potential as habitat of troglobitic invertebrates in Brazil" (Trajano & Bichuette 2010Trajano E, Bichuette ME (2010) Diversity of Brazilian subterranean invertebrates, with a list of troglomorphic taxa. Subterranean Biology 7: 1-16.). Several troglobitic species have been found in Brazilian iron ore caves, both in the Carajás area (Pellegrini & Ferreira 2011Pellegrini TG, Ferreira RL (2011) Coarazuphium tapiaguassu (Coleoptera: Carabidae: Zuphiini), a new Brazilian troglobitic beetle, with ultrastructural analysis and ecological considerations. Zootaxa 3116: 47-58., Pedroso & Baptista 2014Pedroso DR, Baptista RLC (2014) A new troglomorphic species of Harmonicon (Araneae, Mygalomorphae, Dipluridae) from Pará, Brazil, with notes on the genus. Zookeys 389: 77-88. doi: 10.3897/zookeys.389.6693
https://doi.org/10.3897/zookeys.389.6693...
) and the Iron Quadrangle (Souza & Ferreira 2005Souza MFVR, Ferreira RL (2005) Eukoenenia (Palpigradi: Eukoeneniidae) in Brazilian caves with the first troglobiotic palpigrade from South America. Journal of Arachnology 38: 415-424., Coelho et al. 2010Coelho A, Piló LB, Auler AS, Bessi R (2010) Espeleologia da área do Projeto Apolo, Quadrilátero Ferrífero, MG. Belo Horizonte, Carste Consultores Associados, Relatório Técnico, 179p.). Caves from iron ore areas are usually near the surface and have an extensive array of microchannels that house a highly diverse associated fauna (Ferreira 2005Ferreira RL (2005) A vida subterrânea nos campos ferruginosos. O Carste 3(17): 106-115.). The fauna of the "canga" areas of Minas Gerais also include many endemic taxa (e.g., Bernardi et al. 2013Bernardi LFO, Klompen H, Zacarias MS, Ferreira RL (2013) A new species of Neocarus Chamberlin & Mulaik, 1942 (Opilioaca rida, Opilioacaridae) from Brazil, with remarks on its postlarval development. Zookeys 358: 69-89. doi: 10.3897/zookeys.358.6384
https://doi.org/10.3897/zookeys.358.6384...
, Ázara & Ferreira 2013Ázara LN, Ferreira RL (2013) The first troglobitic Cryptops (Trigonocryptops) (Chilopoda: Scolopendromorpha) from South America and the description of a non-troglobitic species from Brazil. Zootaxa 3709(5): 432-44. doi: 10.11646/zootaxa.3826.1.10
https://doi.org/10.11646/zootaxa.3826.1....
).

Herein we describe the second masteriine species from Brazil and the first from Southeast Brazil. In addition, it is the first Masteriinae from iron ore caves collected at Caeté and Santa Barbára, Minas Gerais.

MATERIAL AND METHODS

Specimens were collected inside and near iron ore caves located at the hilltops of "Serra da Gandarela" (Gandarela range), at Caeté and Santa Bárbara, in the Iron Quadrangle area, state of Minas Gerais, southeastern Brazil. The caves are located on "canga" plates; however, the collecting area also included dry patches of Atlantic forest, especially on the small river valleys near the tips of the hill range. Most specimens were collected during a trip of the "Projeto Mina Apolo", a project to study the environmental impact from the installation of a large iron ore mine. The first author participated in the project as a member of the environmental consulting "Amplo Consultoria" team. Additional specimens from the caves in the collecting area had been mentioned by Coelho et al. (2010Coelho A, Piló LB, Auler AS, Bessi R (2010) Espeleologia da área do Projeto Apolo, Quadrilátero Ferrífero, MG. Belo Horizonte, Carste Consultores Associados, Relatório Técnico, 179p.).

The general description format follows Raven (1981Raven RJ (1981) Three new mygalomorph spiders (Dipluridae, Masteriinae) from Colombia. Bulletin of the American Museum of Natural History 170: 57-63.) with some modifications; e.g., eye diameters are given in their real measurements, not in ratios. All measurements are in millimeters and were obtained with a Leica LAS Interactive Measurements module. Leg and palp measurements were taken from the dorsal aspect of the left side (unless appendages were lost or obviously regenerated). A Leica LAS Montage and LAS 3D module, mounted on a Leica M205C dissecting microscope, were used to capture images of the structures of spiders. Illustrations of spermathecae were drawn over images obtained with a Leica DM 2500 compound microscope. The spermathecae soft tissues were digested with trypsin for several days and subsequently cleared with clove oil before they were photographed.

Abbreviations. (ITC) inferior tarsal claw, (PLS) posterior lateral spinnerets, (PME) posterior median eyes, (PMS) posterior median spinnerets, and (STC) superior tarsal claws.

Specimens are deposited in the arachnological collection of the Museu Nacional, Universidade Federal do Rio de Janeiro (MNRJ).

TAXONOMY

Masteria emboaba sp. nov. Figs. 1-16

Diagnosis. Males and females of Masteria emboaba sp. nov. have only two eyes (Figs. 5 and 14). Most other species have six to eight eyes and two, M. pecki and M. caeca (Simon, 1892), have no eyes at all. This new species is much smaller than the other known South American species, except for M. manauara, a tiny species from the state of Amazonas and the only other species described from Brazil. The male of M. emboaba sp. nov. has only two regular, thin spines at the apex of tibia I, lacking the tibial apophysis found in most other Masteria species. The only other described Masteria species with spines in the place of tibial apophysis is M. aimeae, from Cuba; however, the last species has a longer and sinuous embolus (Alayón 1995Alayón GG (1995) La subfamilia Masteriinae (Araneae: Dipluridae) en Cuba. Poeyana 453: 1-8.: figs. 1c-d), contrasting with the embolus of M. emboaba sp. nov., which is much smaller, less sinuous and transversally placed (Figs. 6-8). The only other described Brazilian species, M. manauara, has a double tibial apophysis, with both ends tipped by a strong, short spine, and a very long embolus, parallel to the bulb (Bertani et al. 2013Bertani R, Cruz WR, Oliveira MEES (2013) Masteria manauara sp. nov., the first masteriine species from Brazil (Araneae: Dipluridae: Masteriinae). Zoologia 30(4): 437-440. doi: 10.1590/S1984-46702013000400010
https://doi.org/10.1590/S1984-4670201300...
: figs. 6-9). Table I summarizes the available information on the geographical range and characters of all species of Masteria.

Table I.
Comparison of geographical distribution and main characters of species of Masteria. (M) Male, (F) female, (I) immature, "(-)" non-applicable, "(?)" data not available.

Description. Male holotype (MNRJ 4540) (Fig. 1). Entirely pale yellow. Carapace 1.22 long, 0.96 wide, clothed with long (ca. 0.15) prostate gray bristles on interstrial ridges (Figs. 1 and 2). Two eyes on tubercle occupying 0.28 of head width (Fig. 5). Eye group 0.12 wide. Sizes and interdistances: PME 0.04, PME-PME 0.04. Chelicerae 0.29 long, 0.21 wide, with nine spaced teeth on promarginal furrow and six spinules mesobasally. Labium 0.10 long, 0.20 wide. Maxillae 0.31 long, 0.26 wide. Sternum 0.66 long, 0.63 wide; sigilla not evident (Fig. 3).

Palp with elongated cymbium, bearing seven spines on apical edge; bulb pear-shaped, tegulum 0.22 long, 0.12 wide, tapering and giving origin to a short (0.13) and relatively thin (0.012) embolus, almost transversally placed, due to a strong basal curve to retrolateral side, keeping its diameter and with a gentle curvature on apical half, not tapering to apex (Figs. 6-8). Leg lengths and midwidths in Table II.

Table II.
Masteria emboabasp. nov. Male holotype and femlale paratype (MNRJ 4540). Length and midwidths of right legs and palpal segments.

Leg formula 4123. Tibia I lacking spur, with two large, thin spines ventrally on distal edge. Metatarsus I lacking spur (Fig. 9). Spines elongate: leg I tibia v3, metatarsus v2; leg 2, patella d1, tibia p1, v4, metatarsus v4; leg 3, patella d3, tibia d3, p2, r1, v5, metatarsus d6, p1, v3; leg 4, patella d2, tibia d4, p3, r1, v4, metatarsus d7, p2, r1, v3; palp, tarsus 7. Five to seven teeth on STC; zero to three teeth on ITC. Abdomen 1.42 long, 0.98 wide. Spinnerets (Fig. 4): PMS 0.20 long, 0.81 wide, 0.24 apart; basal, middle, and apical segments of PLS 0.34 long, 0.14 wide; 0.29 long, 0.13 wide; 0.29 long, 0.11 wide, respectively.

Figures 1-9.
Masteria emboabasp. nov. Holotype male (MNRJ 4540) (1) habitus; (2) carapace and chelicerae; (3) sternum, maxillae, chelicerae, coxae and labium; (4) abdomen, ventral; (5) eye tubercle; (6-8) left male palp, (6) retrolateral, (7) prolateral, (8) ventral; (9) left leg I, ventral. Scale bars: 1-2, 4 = 1 mm, 5-9 = 0.1 mm, 3 = 0.5 mm.

Female paratype (MNRJ 4540). As in male, except as noted. Abdominal tegument translucent, allowing recognition of internal structures (Figs. 10 and 13). Carapace 1.20 long, 0.97 wide, clothed with long (ca. 0.11) prostate gray bristles on interstrial ridges (Fig. 11). Two eyes on tubercle occupying 0.36 of head width (Fig. 14). Eye group 0.07 wide. Sizes and interdistances: PME 0.05, PME-PME 0.05. Chelicerae 0.31 long, 0.26 wide, with eleven widely spaced teeth on promarginal furrow and six spinules mesobasally. Labium 0.10 long, 0.22 wide. Maxillae 0.32 long, 0.28 wide. Sternum 0.72 long, 0.65 wide; sigilla not evident (Fig. 12). Leg lengths and midwidths in Table 2. Leg formula 4123. Spines elongate: leg 1,metatarsus v2; leg 2, metatarsus v3; leg 3, tibia d4, v2, metatarsus d5, v4; leg 4, tibia d4, v4, metatarsus d6,v3; palpus, tarsus v4. Four to eleven teeth on STC; two to four on ITC. Abdomen 1.86 long, 1.22 wide. Spinnerets (Fig. 13): PMS 0.23 long, 0.09 wide, 0.34 apart; basal, middle, and apical segments of PLS 0.33 long, 0.14 wide; 0.19 long, 0.14 wide; 0.22 long, 0.11 wide, respectively. Epigastric plate not posteriorly produced; two spermathecae, each one with one pair of long, thin stalks bearing a distal rounded and somewhat flattened receptacle. The outer stalk-receptacle set is smaller than the inner one (Fig. 15).

Figures 10-14.
Masteria emboabasp. nov. Paratype female (MNRJ 4540): (10) habitus; (11) carapace and chelicerae; (12) sternum, maxillae, chelicerae, coxae and labium; (13) eye tubercle; (14) abdomen and spinnerets, ventral. Scale bars: 10-12, 14 = 1 mm, 13 = 0.1 mm.

Figure 15.
Masteria emboabasp. nov. paratype (MNRJ 4540), spermathecae dorsal view. Scale bar: 100 µm.

Type material. Male Holotype: Brazil, Minas Gerais: Caeté (inside a natural cavity, 20°01'40"S, 43°40'52"W, 1,484 m a.s.l., highlands of Serra da Gandarela), May 2011, Bichuettte, M.E. leg. (MNRJ 4540). Paratypes: Brazil, Minas Gerais: Caeté, same data as holotype (2 females, 1 immature, MNRJ 4540); near cave AP. 09 (20°01'33"S, 43°40'54"W), 1,439 m a.s.l., Projeto Mina Apolo, sifting forest litter, July 09 2011, Equipe Aracno leg. (2 females, 10 immatures, MNRJ 4388); Santa Bárbara: near cave AP. 31 (20°02'14"S, 43°40'38"W), 1,443 m a.s.l., Projeto Mina Apolo, sifting forest litter, July 08 2011, Equipe Aracno leg. (1 immature, MNRJ 4380).

Additional material. Brazil, Minas Gerais: Caeté: (near cave AP. 54, 20°01'40"S, 43°40'52"W, 1,484 m a.s.l.), Projeto Mina Apolo, sifting forest litter, July 06 2011, Equipe Aracno leg. (1 immature, MNRJ 4378); same locality, under stones and rotten wood, forest, September 24 2011, Equipe Aracno leg. (1 female, 1 immature, MNRJ 4436; 1 immature, MNRJ 4437).

Distribution. Only known from small tracts of Atlantic Forest and caves on "canga" areas, on the hilltops of the Ganda rela range, Caeté and Santa Bárbara, state of Minas Gerais, Brazil.

Etymology. The specific name, "emboaba" is a noun in apposition and refers to the historical episode "Guerra dos Emboabas" (loosely translated as "War of the Emboabas"). This episode was a series of fights between gold miners from different regions of Brazil in the early 18th century throughout Minas Gerais, especially at the Caeté region (Mello 1979Mello JS (1979) Os Emboabas. São Paulo, Governo do Estado de São Paulo, 295p.).

Remarks. The spiders were whitish and almost translucent when alive (Fig. 16), but became yellowish and opaque in alcohol (Figs. 1 and 10). Additional specimens of M. emboaba sp. nov. were collected during the initial phase of the "Mina Apolo" project (Coelho et al. 2010Coelho A, Piló LB, Auler AS, Bessi R (2010) Espeleologia da área do Projeto Apolo, Quadrilátero Ferrífero, MG. Belo Horizonte, Carste Consultores Associados, Relatório Técnico, 179p.), inside several of the "canga" caves, located between 20°01'33"S and 21°02'31"S to 43°40'25"W and 43°41'18"W. The Masteria specimens from a locality near Caeté, in Nova Lima, Minas Gerais, mentioned by AngloGold Ashanti (2009), may also belong to M. emboaba sp. nov.

Natural history. Masteria emboaba sp. nov. was collected both inside "canga" caves and in the dry forested tracts near the "canga" area. However, they were not found in open grassland areas covering the "canga" around the caves (Fig. 17). In the dry forest (Fig. 18), they were found sieving through the litter, or were spotted under rotten wood and stones. Therefore, we may assume that this species is associated with forest litter, eventually invading nearby caves. Cave colonization would be an easy step for an animal that is already adapted to small cavities in litter. The small patches of dry forests covering the slopes of drainage valleys do not present a continuous and deep litter layer, but there are litter pockets amassed in suitable areas. The "canga" caves are placed just below the surface and are penetrated by many plant roots. They seem to offer a suitable environment for the species, with high humidity and plenty of spider food. In addition, there are many access points to the cave through the microchannels in the porous iron matrix (Ferreira 2005). These access points may serve as a refuge for animals during dry periods, allowing the species to survive the long, dry winter of the area.

Figures 16-18.
(16) Masteria emboaba sp. nov., living female, near AP-54; (17) view of typical open grassland vegetation found in "canga" areas; (18) view of dry forest patches covering drainage valleys near "canga" areas. Photos: D. Pedroso.

The Masteria species for which habitat information is available live in underground habitats, for instance in the depths of litter or in caves. Their pale color and some degree of eye reduction seem to be correlated with life in dark habitats. Most species of Masteria have only six eyes (e.g., Simon 1889Simon E (1889) Arachnides. In: Voyage de M.E. Simon au Venezuela (décembre 1887-avril 1888), 4e Mémoire. Annales de la Societe Entomologique de France 9: 169-220., 1892Simon E (1892) Arachnides. In: Raffrey A, Bolivar I, Simon E (Eds) Etudes cavernicoles de l'île Luzon. Voyage de M.E. Simon aux l'îles Phillipines (mars et avril 1890), 4e Mémoire. Annales de la Société Entomologique de France 61: 35-52., Raven 1991Raven RJ (1991) A revision of the mygalomorph spider family Dipluridae in New Caledonia (Araneae). In: Chazeau J, Tillier S (Eds). Zoologia Neocaledonica. Mémoires du Museum National d'Histoire Naturelle (A) 149: 87-117.), and those that have eight eyes have a pronounced reduction of the anterior median pair, e.g. M. petrunkevitchi and M. simla (Chickering 1964Chickering AM (1964) Two new species of the genus Accola (Araneae, Dipluridae). Psyche 71: 174-180., 1966Chickering AM (1966) Three new species of Accola (Araneae, Dipluridae) from Costa Rica and Trinidad, W. I. Psyche 73: 157-164.). The complete loss of eyes is found in two troglobite species: M. caeca, from Phillipines (Simon 1892Simon E (1892) Arachnides. In: Raffrey A, Bolivar I, Simon E (Eds) Etudes cavernicoles de l'île Luzon. Voyage de M.E. Simon aux l'îles Phillipines (mars et avril 1890), 4e Mémoire. Annales de la Société Entomologique de France 61: 35-52.), and M. pecki, from Jamaica (Gertsch 1982Gertsch WJ (1982) The troglobitic mygalomorphs of the Americas (Arachnida, Araneae). Association for Mexican Cave Studies Bulletin 8: 79-94.). The reduction to only two eyes in Masteria emboaba sp. nov. may point to a high degree of specialization to underground habitats.

ACKNOWLEDGMENTS

We thank Norman Platnick for help with the literature. Support: FAPERJ PhD grant for D. Pedroso, FAPESP 2012/01093-0 and CNPq Research Fellow-Brazil for R. Bertani.

  • Alayón GG (1995) La subfamilia Masteriinae (Araneae: Dipluridae) en Cuba. Poeyana 453: 1-8.
  • AngloGold Ashanti (2009) Diversidade da Mata Samuel de Paula. Nova Lima, AngloGold Ashanti, 296p.
  • Auler AS, Piló LB, Parker CW, Senko JM, Sasowsky ID, Barton HA (2014) Hypogene cave patterns in iron ore caves: convergence of forms or processes? Karst Waters Institute Special Publication 18: 15-19.
  • Ázara LN, Ferreira RL (2013) The first troglobitic Cryptops (Trigonocryptops) (Chilopoda: Scolopendromorpha) from South America and the description of a non-troglobitic species from Brazil. Zootaxa 3709(5): 432-44. doi: 10.11646/zootaxa.3826.1.10
    » https://doi.org/10.11646/zootaxa.3826.1.10
  • Bernardi LFO, Klompen H, Zacarias MS, Ferreira RL (2013) A new species of Neocarus Chamberlin & Mulaik, 1942 (Opilioaca rida, Opilioacaridae) from Brazil, with remarks on its postlarval development. Zookeys 358: 69-89. doi: 10.3897/zookeys.358.6384
    » https://doi.org/10.3897/zookeys.358.6384
  • Bertani R, Cruz WR, Oliveira MEES (2013) Masteria manauara sp. nov., the first masteriine species from Brazil (Araneae: Dipluridae: Masteriinae). Zoologia 30(4): 437-440. doi: 10.1590/S1984-46702013000400010
    » https://doi.org/10.1590/S1984-46702013000400010
  • Carmo FF, Jacobi CM (2013) A vegetação de canga no Quadrilátero Ferrífero, Minas Gerais: caracterização & contexto fitogeográfico. Rodriguesia 64(3): 527-541. doi: 10.1590/S2175-78602013000300005
    » https://doi.org/10.1590/S2175-78602013000300005
  • Chickering AM (1964) Two new species of the genus Accola (Araneae, Dipluridae). Psyche 71: 174-180.
  • Chickering AM (1966) Three new species of Accola (Araneae, Dipluridae) from Costa Rica and Trinidad, W. I. Psyche 73: 157-164.
  • Coelho A, Piló LB, Auler AS, Bessi R (2010) Espeleologia da área do Projeto Apolo, Quadrilátero Ferrífero, MG. Belo Horizonte, Carste Consultores Associados, Relatório Técnico, 179p.
  • Ferreira RL (2005) A vida subterrânea nos campos ferruginosos. O Carste 3(17): 106-115.
  • Gertsch WJ (1982) The troglobitic mygalomorphs of the Americas (Arachnida, Araneae). Association for Mexican Cave Studies Bulletin 8: 79-94.
  • Leão MR, Auler AS (2012) Pedido de Supressão da Cavidade ASS-01, Serra do Sapo - Conceição do Mato Dentro. Belo Horizonte, Carste Consultores Associados, Relatório Técnico, 22p.
  • Mello JS (1979) Os Emboabas. São Paulo, Governo do Estado de São Paulo, 295p.
  • Pedroso DR, Baptista RLC (2014) A new troglomorphic species of Harmonicon (Araneae, Mygalomorphae, Dipluridae) from Pará, Brazil, with notes on the genus. Zookeys 389: 77-88. doi: 10.3897/zookeys.389.6693
    » https://doi.org/10.3897/zookeys.389.6693
  • Pellegrini TG, Ferreira RL (2011) Coarazuphium tapiaguassu (Coleoptera: Carabidae: Zuphiini), a new Brazilian troglobitic beetle, with ultrastructural analysis and ecological considerations. Zootaxa 3116: 47-58.
  • Platnick NI (2014) The World Spider Catalog, version 15. American Museum of Natural History, online at http://research.amnh.org/entomology/spiders/catalog/index.html. doi: 10.5531/db.iz.0001
    » https://doi.org/10.5531/db.iz.0001» http://research.amnh.org/entomology/spiders/catalog/index.html
  • Platnick NI, Foster RR (1982) On the Micromygalinae, A New Subfamily of Mygalomorph Spiders (Araneae, Microstigma tidae). American Museum Novitates 2734: 1-13.
  • Raven RJ (1979) Systematics of the mygalomorph spider genus Masteria (Masteriinae: Dipluridae: Arachnida). Australian Journal of Zoology 27: 623-636.
  • Raven RJ (1981) Three new mygalomorph spiders (Dipluridae, Masteriinae) from Colombia. Bulletin of the American Museum of Natural History 170: 57-63.
  • Raven RJ (1985) The spider infraorder Mygalomorphae (Araneae): Cladistics and systematics. Bulletin of the American Museum of Natural History 182: 1-180.
  • Raven RJ (1991) A revision of the mygalomorph spider family Dipluridae in New Caledonia (Araneae). In: Chazeau J, Tillier S (Eds). Zoologia Neocaledonica. Mémoires du Museum National d'Histoire Naturelle (A) 149: 87-117.
  • Raven RJ, Platnick NI (1981) A revision of the American spiders of the family Microstigmatidae (Araneae, Mygalomorphae). American Museum Novitates 2707: 1-20.
  • Simon E (1889) Arachnides. In: Voyage de M.E. Simon au Venezuela (décembre 1887-avril 1888), 4e Mémoire. Annales de la Societe Entomologique de France 9: 169-220.
  • Simon E (1892) Arachnides. In: Raffrey A, Bolivar I, Simon E (Eds) Etudes cavernicoles de l'île Luzon. Voyage de M.E. Simon aux l'îles Phillipines (mars et avril 1890), 4e Mémoire. Annales de la Société Entomologique de France 61: 35-52.
  • Souza MFVR, Ferreira RL (2005) Eukoenenia (Palpigradi: Eukoeneniidae) in Brazilian caves with the first troglobiotic palpigrade from South America. Journal of Arachnology 38: 415-424.
  • Trajano E, Bichuette ME (2010) Diversity of Brazilian subterranean invertebrates, with a list of troglomorphic taxa. Subterranean Biology 7: 1-16.

Publication Dates

  • Publication in this collection
    Jan-Feb 2015

History

  • Received
    23 Aug 2014
  • Reviewed
    28 Dec 2014
  • Accepted
    23 Jan 2015
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