Resumo em Inglês:The C. danae females were collected monthly, within the period of April/91 to March/92. The monthly average variation of the condition factor (Ø1), is associated, among other causes, to both the weight of the gonads (Ø3) and the stomach (Ø2). The difference between Ø1 and Ø3 (ΔØ) estimates the "gonadal condition" showing highest values on the reproductive cycle (May, November, January and March). These months coincide with the highest values of the gonadossomatic index. So can be used as an indicative of the period of spawning of Callinectes danae in Lagoa da Conceição, Santa Catarina, Brazil.
Resumo em Inglês:The possible dissimilitudes relating to the duration of the egg incubation period and larval stage of Cochliomyia macellaria (Fab., 1775) from offsprings of females from larvae with and without pigmentation on Malpighi tubules, morphotype 1 and 2, respectively, was questioned. The experiment was conducted in climatized chamber regulated at 30ºC, 65±10% RH and 14 hour photophase. No significant difference was observed on average duration of first and second larval instars berween the two morphotypes, taking into account not only the conventional interpretation for the reading of different development phases of the larval stages (morphotype 1:11.0 and 11.9 hours and morphotype 2:11.7 and 12.7 hours for first and second instars, respectively), but also the reading made through the interpretation preconized by Snodgrass & Hinton (morphotype 1:10.3 and 9.6 hours and morphotype 2:9.8 and 10.8 hours for the first and second instars, respectively). The incubation period was significantly longer for eggs posited by females from non-pigmented larvae.
Resumo em Inglês:Optical microscopy and scanning electron microscopy technics were aplied in order to describe, for the first time, the immature stages of Z. beaumonti Casey, 1899 reared on it's prey, Diaspis echinocacti (Bouché, 1833) (Homoptera, Diaspididae), the unique pest of Opuntia ficus-lndica Mill and Nopalea cochenillifera (L.) Salm-Dick (prickly-pear, Cactaceae), an impportant alternative food source for the cattle on drought áreas of Northeast of Brazil. Yellow eggs layed inside the scales, caraboid larvae without wax processes and pupae partially protected by the last exuvia presented the Scymninae pattern.
Resumo em Inglês:An alternative proposition for the analysis of the diagnostic states of the pronotum in the Centrotinae and Membracinae (sensu Strümpel) is presented. In this analysis, a linear transformation series is proposed for this character, departing from the state found in Tolania Stal, 1858 changing to an intermediate state in Centrotinae, which is still treated as plesiomorphic when compared with the one found in Membracinae. The transformation series thus defined, clarifies the problems related to the monophyly of the Membracidae, which is herein supported by the state of pronotum previously used to define the Centrotinae. This later taxon is treated as paraphyletic. The monophyly of the Membracinae is unquestioned, but its sister group is still unknown. Finally, this analysis permitted the reinterpretation of several characters, previously treated as homoplasies, now as synapomorphies.
Resumo em Inglês:The contribution of the Franciscan priest Francisco dos Prazeres to our knowledge of the natural history, geography, history and ethnography of Maranhão in the early XIXth Century appeared in the Revista do Instituto Histórico e Geographico do Brazil in 1891. The original manuscript was donated to the Instituto's library in 1843, and disapeared. The printed text was a copy, without the orignal map, donated by Colonel Francisco Manoel da Cunha Júnior. Fray Francisco was a corresponding member, and a better historian and geographer than a zoologist. This paper summarizes the available information on the zoological expeditions that explored Maranhão. A list of all mammals described in the Poranduba Maranhense is provided, followed by the identification of the species.
Resumo em Inglês:The length of the entire egg, micropile and vitellus regions of Anastrepha obliqua Macquart, 1835 were measured during all opposition period. Obtained values were compared among them and with oviposition rate. The smallest eggs were produced during the first 35 oviposition days, period where the highest oviposition rate occured. The decrease in egg length was found to be due to a descrease in the vitellus region. Micropile length was found to be pratically constant throughout oviposition. Furthermore, no relationship between maternal age and length was detectable.
Resumo em Inglês:The outcome of a wild bee fauna survey in a secondary forest is reported. Sampling was carried out mainly on herbaceous and shrubby vegetation under and at the border of the forest. Results are compared with data collected with the same methodology from a previously surveyed grassland nearby. The secondary forest was richer in Anthophoridae and Apidae species, and less diverse in Megachilidae. Similarity between the two habitats was low. Several unidentified species of Ceratinula, Trichocerapis mirabilis and the stingless bees Melipona bicolor, M. quadrifasciata, M. marginata, Paratrigona subnuda, Scaptotrigona tubiba and S. xanthotricha, are among the species dependent on the forest environment to survive. Bee population densities in the forest understory are as large as the largest values found for open vegetation in Southeastern Brazil; species richness is also comparable to those of other areas in Southeastern Brazil. Sampling strategies are discussed.
Resumo em Inglês:A new genus, Micropotamia, is erected for Phaonia minuscula Albuquerque, 1955 [type-species of the genus], Phaonia cilitibia Albuquerque, 1955 and Azelia amazonica Albuquerque & Lopes, 1982. A key to these three species is given. The female of Micropotamia amazonica is described for the first time, from Roraima. Some character-states of phylogenetic importance and affinities with world Azeliini genera are discussed. Megophyra Emden, 1965 and Potamia Robineau-Desvoidy, 1830 are considered to be most closely related to Micropotamia, gen.n.
Resumo em Inglês:Guatemalia nigritarsis, sp.n. from Honduras is described and the male terminalia illustrated.
Resumo em Inglês:Attempting to contribute with the knowledge about the bioecological aspects concerning the youth forms of M. furnieri (Desmarest, 1823) and C. leiarchus (Cuvier, 1830) from Itacorubi mangrove, 15 samplings were taken from January 1988 to March 1989. Using casting and entangle nets, a total of 308 individuais from these species were captured. Their abundanee were: M. furnieri N = 197 (64,0%); C. leiarchus N = 111 (36,0%). The relative frequency and range of total weights and lengths were studied. Concerning spatial distribution of the species, it was observed that M. furnieri occurred in all areas and C. leiarchus was not captured only in "D" area (Sertão River). During the anual cycle the two species occurred jointly. The results emphasize other authors statements that consider this mangrove as a "natural growing enviroment" which is highly important for the region.
Resumo em Inglês:This research presents a detailed study of the morphology of the head of adult in both sexes of the south Brazilian species of the Morphinae subfamily (Lepidoptera, Nymphalidae), as mentioned below: Morpho helenor violaceus Fruhstorfer, 1912; Iphimedeia hercules (Dalman, 1823); Iphixibia anaxibia (Esper, 1801); Cytheritis portis thamyris (Felder & Felder, 1867); Cytheritis aega (Huebner, 1822); Pessonia catenaria (Perry, 1811); Grasseia menelaus nestira (Huebner, 1821).
Resumo em Inglês:Based on the type specimen from the Zoologisches Museum der Humboldt Universitaet, Berlin, the systematic position of Exomalopsis latitarsis is discussed and a new combination is justified as Tapinorrhina latitarsis. A correct spelling Tapinorrhina is proposed for Tapinorhina Michener & Moure, 1957.
Resumo em Inglês:Arthurella Albuquerque, 1954 is redescribed and its systematic position is discussed. The puparium of A. nudiseta Albuquerque, 1954 is also redescribed and illustrated.
Resumo em Inglês:The Monticelliidae species, Nomimoscolex admonticellia (Woodland, 1934), comb.n., parasite of Pinirampus pirinampu (Spix, 1829) a freshwater siluriform fish, is redescribed. This species is the type of the genus Myzophorus Woodland, 1934. The authors discuss the validity of this genus and propose its suppression. Their species are transferred to Nomimoscolex (Zigobothriinae) whose diagnose is modified to include: N. admonticellia, comb.n., N. pirarara (Woodland, 1935), comb.n. and N. woodlandi (Rego, 1984), comb.n.
Resumo em Inglês:This paper presents a contribution to the study of the Crustacea, Decapoda of Brazil, including identification keys and informations on species range. Data related to the species of family Portunidae are published.
Resumo em Inglês:Scolotydaeus corticicola sp.n. is described, from the bark of an eucalyptus tree, from Piracicaba, São Paulo, Brazil.
Resumo em Inglês:Lissopedia, a new genus is proposed for Tetrapedia globulosa Friese, 1899, from Brazil and to include Tetrapedia flavopicta Cockerell, described from Yucatan, México. Three new species: Lissopedia ochronota from Albany, Jamaica, Lissopedia xanthina from Carmen (on the River Madre de Dios), Pando, Bolívia, and Lissopedia tristriata from Manaus, Amazonas, Brazil are described. The female of Lissopedia globulosa is described from Barreiras, Bahia, Brazil and thus a locality is given for this species. This genus seems to be confined to the Neotropical Region. Exomalopsini, Tapinotaspidini and Paratetrapediini are considered as tribes of Exomalopsinae.
Resumo em Inglês:Six new species from Campinaçu, Goiás (Hemiptera) are described: Notholopus (Notholopoides) niger, sp.n., T. tripallidus, sp.n., Prepops goianus, sp.n., P. semifemoratus, sp.n., Poeas clavata, sp.n. and Taedia goiana, sp.n.
Resumo em Inglês:The larva of Miathyria simplex (Rambur, 1842) is described, illustrated and compared to that of M. marcella (Selys, 1857). A key for identification of the South American Libellulidae larvae, wich show dorsal spines on abdominal segments III to VIII, is presented.
Resumo em Inglês:Gnathanthidium, gen.n. is proposed for two new species from South America, one from Brazil (Paraná, Santa Catarina and Rio Grande do Sul) and Argentina (Misiones) Gnathanthidium sakagamii, sp.n. and another from Argentina (Tucuman) Gnathanthidium ferrugineum, sp.n. The female of this Anthidiine bee nas peculiar mandibles without large teeth, only with two little ones on the apical margin.
Resumo em Inglês:This study was carried out in the region of Londrina, Paraná, Brazil in three different areas: a primary forest, a disturbed primary forest and an open area. Within 207 hours of capture, 990 individuals were collected, 939 of them being fruit-eating bats. Carollia perspicillata (Linnaeus, 1758), Sturnira lilium (Geoffroy, 1810), Platyrrhinus lineatus (Geoffroy, 1810) and Artibeus lituratus (Olfers, 1818) were the four most collected species in a total of 899 individuals. A. lituratus was found in greater number in all the areas, showing significant variation in relation to the size of the forests. The partition of food resources among the four most collected species was known through the analysis of their feces. The coexixtence of these species can be explained by their investing in different foods or their diverging time activity.
Resumo em Inglês:Two new species of Macrochelid acari Macrocheles novaodessensis, sp.n. and M. roquensis, sp.n. are described. These species inhabit cattle manure and were collected in several ranches in the state of São Paulo, Brazil.
Resumo em Inglês:Nests of the "Scaly-headed parrot" and "Illiger's macaw" - Pionus maximiliani (Kuhl, 1820) and Ara maracana (Vieillot, 1816) - found at the Ecological Station in Gália, São Paulo with clutches in 26-VII-90 and 20-IX-90, both containing four white rounded and at one end slightly pointed eggs, measuring 33.4x30.0mm and 33.0x28.0mm each respectively, are being reported on. The incubation in the "Scaly-headed parrot" lasted for 26 days, the stay of the young in the nest cavity for about 50 days and only one adult was seen incubating, while in "Illiger's or Blue-winged macaw" both parents used to stay in the nest.