RCAAP Repository

Descriptions and illustrations of external morphology of all immature phases of Ophyra aenescens (Wiedemann, 1830) and puparium of Ophyra chalcogaster (Wiedemann, 1824) are presented.

The immature stages of Platyphora zonata (Germar, 1824) are described, with comments on habits.

Os autores descrevem Cangatiella arandasi, gen. n. sp. n., parasito de "cangati", Parauchenipterus galeatus. O gênero se caracteriza por apresentar os vitelinos dispostos entre os canais excretores e pela presença de um sulco longitudinal que percorre o estróbilo e que, juntamente com sulcos transversais, sugere sistema de canais. Trata-se da primeira referência do encontro de proteocefalídeos neste hospedeiro.

The morphology of the testicles of some Brazilian species of Diplopoda is described. One type is scalariform, with two deferent ducts and the other consists of some single deferent duct. Phyllogenetic considerations on the structure are made.

The condition of certain neglected structures and their possible importance to the classification of the family Tabanidae are studied. The front coxae are considered as belonging to two types: 1) short and robust; 2) long and slender. The posterior edge of the meso-katepimeron presents two conditions: 1) without projection, 2) with backward projection. Similar conditions are found in the meso-Katepisternum, but with intermediate conditions. These characters are discussed in relation to the system proposed for the family by Mackerras. Conditions 1 and 2 of the former two structures separate, respectively, the Pangoniinae and Scepsidinae from the Chrysopsinae and Tabaninae. Condition 2 of the third structure seems to be developing independently in different groups of Tabaninae, with varying degrees of development.

São reunidas neste trabalho todas as espécies de nematóides parasitas de anfíbios encontradas no Brasil, com dados suficientes para a sua identificação especifica. Na primeira parte que é o catálogo dos nematóides parasitos de anfíbios, são relacionadas nove superfamilias, quatorze famílias, vinte e quatro gêneros e sessenta e três espécies, sendo que destas, são dadas figuras e medidas. Na segunda parte que é o catálogo dos anfíbios hospedeiros, todos pertencentes à ordem Anura, são referidas seis famílias e cinqüenta e cinco espécies de anfíbios, estas com os nematóides respectivos. A identificação dos nematóides é auxiliada por chaves de determinação das superfamílias, famílias e gêneros, sendo a identificação específica feita através de quadros de medidas e figuras.

Comparative morphometrics of Ctenosciaena gracilicirrhus, Paralonchurus brasiliensis and Micropogonias furnieri (Teleostei: Sciaenidae) by multivariate analysis of truss networks. Morphological differentiation among three species of sciaenid fishes, Ctenosciaena gracilicirrhus, Paralonchurus brasilliensis and Micropogonias furnieri, was analyzed by multivariate statistical techniques, using measuraments obtained from truss networks based on anatomical landmarks. Principal components analysis of interlandmark distances defined by the truss system showed that the individuais of Ctenosciaena gracilicirrhus are different from those of the other two species in relation to shape, being more similar to the individuals of Micropogonias furnieri in relation to size.

Cynolebias leitaoi n. sp. is described from Mucuri, State of Bahia. This new species is related to the group having females without ornamentation pattem in the body and fins. The most distinctive character observed is the pattern of vertical bars in the flank associated to the presence of small drops in the flank and anal, caudal and dorsal fins, of the males.

No summary/description provided

No summary/description provided

No summary/description provided

The genital pieces of the holotypes of Craspedochoeta pallidithorax (Albuquerque, 1959) and C. xanthopyga (Albuquerque, 1959), both females, are herein described, including illustrations.

Durante um período de 29 meses consecutivos foram realizados inventários de mamíferos em habitais de floresta nativa e exótica, além de área de campo, todos situados no Parque Florestal Estadual do Rio Doce, localizado na região ocidental da Mata Atlântica no estado de Minas Gerais. Foram registradas para o Parque um total de 60 espécies de mamíferos, distribuídas por 9 ordens, 24 famílias e 49 gêneros. De um esforço total de 64.300 armadilhas-noite, foram realizados 2.129 capturas de pequenos mamíferos não-voadores pertencentes a 20 espécies. Foram também capturadas 14 espécies de quirópteros, representando 12 gêneros e 4 famílias. Em 300 Km de censos diurnos repetidos nas áreas de mata nativa foram registradas 12 espécies de mamíferos de médio e grande porte, além de 14 outras observadas através de meios diversos. Estes dados reforçam a idéia que a mastofauna da Mata Atlântica é bastante diversa. O Parque Estadual Florestal do Rio Doce deve ser considerado como uma das principais áreas para a conservação de fauna desta região e sua proteção deve ser priorizada.

Tadpoles of Hyla bipunctata Spix and H. meridiana Lutz are described and illustrated, both belonging to the "microcephala" group, occurring in the State of Rio de Janeiro. In spite of the large resemblance existent between the tadpoles of these species, they can be distinguished by morphologic aspects, coloration and dimensions on several stages. In "microcephala" group, by the verified in the tadpoles now studied and in those of others species figured in the literature, we can emphasize singular aspects as the absence of comeus denticles and papillae in the mouth, alongside of the prolonged form of the body with xiphicercal tail.

The species Ascaridia columbae (Gmelin, 1790) Travassos, 1913, Acuaria mayori Lent, Freitas & Proença, 1945 and Aproctella stoddardi Cram, 1931, are redescribed and referred in new hosts. Acuaria mayori is reported for the first time in Brazil and Ap. stoddardi in South America. Ascaridia columbae is properly figured for the first time in Brazil.

Nine thousand, six hundred and ninety-one flies of the family Muscidae (47 species) and Anthomyiidae (2 species) were captured. Flies were collected in three ecologically distinct areas (urban, rural and forest) within the metropolitan region of the city of Rio de Janeiro using as baits decomposing fish, bovine liver, fresh human faeces and mashed banana with sugar. Fish attracted the highest number of flies all over the year. Large number of flies were always collected in the summer and spring but reduced in the winter. Among several species of flies, Atherigona orientalis Schiner, 1868, Musca domestica Linnaeus, 1758 and Synthesiomya nudiseta (Wulp, 1883) were always frequent.

A faunistic survey of the species of Callinectes Stimpson, 1871 carried out in the coastal and estuarine regions of the State of Rio Grande do Norte yielded five species: C. bocourti A. Milne Edwards, 1879; C. danae Smith, 1869; C. exasperatus (Gerstaecker, 1856); C. larvatus Ordway, 1863 and C. ornatus Ordway, 1863. Specimens examined consist of those collected on a monthly basis from three fixed stations within the estuary of Potengi, Natal during a period of two years and those obtained from other localities. Among the species occuring in the region, C. danae is more abundant and has a wider range of tolerance of salinity while C. larvatus is restricted to the marine habitat. Though C. danae sustains important artisan fishery, C. bocourti of large size also contribute to the fishery.

Researches under field conditions were done on the breeding cycle of Macrobrachium potiuna (Müller, 1880), a freshwater shrimp from southern Brazil. It was possible to determine the fecundity and establish its relations with the spawn's weight, the total length and the total weight of ovigerous females.

Eight localities were selected as representative sites to survey the entomofauna of Paraná State, Brazil: 1) Antonina (Sapitanduva); 2) Sao José dos Pinhais (Serra do Mar); 3) Colombo (Embrapa); 4) Ponta Grossa (Vila Velha); 5) Telêmaco Borba (Reserva Biológica Klabin); 6) Jundiaí do Sul (Fazenda Monte Verde); 7) Guarapuava (Santa Clara) and 8) Fênix (Reserva de Vila Rica). Floristic and meteorological conditions in these sites were registered and compared. One Malaise and one light trap were installed in each site. The insects were collected during two years, from August 1986 to July 1988. Only the material obtained during the first year has been sorted at insect order level and analyzed. The quantitative faunistic data were transformed in percentages and monthly densities for the analysis. Comparisons among collecting sites were established based on the faunistic and climatic data. The following methods were used to analyze the data: Clustering Analysis, Principal Coordinate Analysis and the Linear Correlation Coefficient.

The colony of C. albiceps (Wiedemann, 1819) was established from larvae and adults colected in the "Estação para Pesquisa Parasitológica W.O. Neitz" area at UFRRJ and Seropedica District, Itaguai, Rio de Janeiro. (Latitude: 22º45'S; Longitude: 43º41'W and Altitude: 33 metres). The biological aspects of this species were studied in climatized chambers regulated at 60±10% RH and 14 hours photophase. The duration and the viability of the larval and pupal stages of C. albiceps was 5,2 and 4,53 days; 95,75% and 94%, respectively. An effect of group was observed on the larvae at the first and second instar. The average weight of mature larvae was around 75 mg, varying between 12,2 to 120 mg. Only mature larvae with average weight higher than 42 mg have originated adults. Oviposition peaks between the sixth and tenth days pos-emergence were observed. Survival curves of the males and females were estimated using the Weibull model.