RCAAP Repository

In this paper, Hyalella caeca sp. n. is described. The types are housed within the carcinological collection of the Museu Nacional, Rio de Janeiro, Brazil. This is the first species of the genus Hyalella Smith, typically caverni-colous, to be found in Brazil.

The male of Elanela hevera Rolston et alii, 1980 and the female of Nocheta adda Rolston et alii, 1980 are described for the first time. A complete study of external genitalia for both sexes of E. hevera and N. adda is also presented.

Twetve external morphological traits and seven traits of food-gathering behavior were studied in africanized and caucasian (A. m. caucasica), bees. Discriminant analysis showed that neither the length of the fourth segment of the abdomen, nor bee weight can be considered as the traits with the highest discriminatory power between africanized and caucasian bees, with any in-bred bees. In the case of in-bred bees the discriminam traits had a lower interorbital width and time to reach the feeder. Multivariate comparisons between the data of in-bred colonies and twenty hibrid colonies, suggest dominance of the genes group of the africanized subspecies.

In this paper is presented, in detail, the morphology of Kronides incumbens (Germar, 1835) (Homoptera, Membracidae).

This paper includes descriptions of the immature stages of Epilachna spreta (Muls., 1850), as well as redescriptions together with certain comments of E. paenulata (Germ., 1824), E. cacica (Guér., 1844) and E. clandestina (Muls., 1850) are presented. Two new species groups have been established and named as "paenulata" and "cacica". A key for the fourth instar larvae of the species commonly found in South Brazil is included.

No summary/description provided

In this paper, two new genera and species of Neotropical Eucerinae (Hymenoptera, Apoidea) are described: Santiago mourei, gen.n., sp.n. (from Paraopeba, MG, Brazil) and Hamatothrix silvai, gen.n., sp.n. (from Santiago del Estero, Argentina).

Narope guilhermei sp. n., from South Brazil is described and illustrated.

Comments on the systematic position and synonymy of the Hesperiidae described by J. Roeber are presented. The Syn. n. are the following: Jemadia gigantea Roeber, 1925 of Nosphistia zonara (Hewitson, 1866), Pyrrhopyga josepha Ploetz, 1879 of Hegesippe luteizona (Mabille, 1877), Phocides palaemonides Roeber, 1925 of Phocides palemon palemon (Cramer, 1777), Phocides xenocrates Bell, 1935 of Phocides vulcanides Roeber, 1925, Phocides parvus Roeber, 1925 of Phocides pialia pialia (Hewitson, 1857), Thymele aulicusi Roeber, 1925 of Astraptes enotrus (Cramer, 1781), Pythonides zonula Mabille, 1889 of Paches loxus loxus (Westwood, 1852), Thespieus chlorocephala Roeber, 1925 of Thespieus lutetia (Hewitson, 1866), Xeniades cecropteroides Roeber, 1925 of Niconiades caeso (Mabille, 1891) and Thracides nanea chiricana Roeber, 1925 of Thracides nanea nanea (Hewtson, 1867). Metron leucogaster leucomelas (Roeber, 1925) is a Comb. n. and a Stat. n. for Zenis leucomelas. Lectotypes are designated for the following species or subspecies: Mimoniades hemitaenia Roeber, 1925, Mimoniades inaequalis Roeber, 1925, Amenis similis Roeber, 1925, Mysoria erythrostigma Roeber, Myscelus nobilis meridionalis Roeber, 1925, Phocides iocularis Roeber, 1925, Phocides parvus Roeber, 1925, Polygonus amyntas pallida Roeber, 1925, Thymele albifasciatus Roeber, 1925, Thymele subfasciatus Roeber, 1925, Thymele aulicus Roeber, 1925, Phyrrhocalles kruegeri Roeber, 1925, Vettius phyllides Roeber, 1925 and Xeniades cecropteroides Roeber, 1925.

Six zoeal stages and the megalopa of the comestible crab Ucides cordatus cordatus (Linnaeus, 1763) are described and illustrated. The larvae were reared in the laboratory at temperature 25 ± 1ºC and water salinity of 24‰; duration of stages and survival rates were measured. Comparisons with the descriptions of the zoeal morphologic characters of Ocypodidae and Gecarcinidae permited to include definitively U. c. cordatus in the family Ocypodidae, subfamily Ocypodinae.

Amblyscartidia trifasciata sp. n. is described from Silva Jardim - RJ, Brazil. (Homoptera, Cicadellidae, Cicadellinae).

No summary/description provided

No summary/description provided

A new genus Nooliodes is described and a new family Nooliodidae is proposed and characterized (Acari, Oribatei). The type species, Plateremaeus glaber Balogh, from Madagascar, is redescribed based on previous description and figures. The new genus is close to Octoliodes Paschoal, 1987 family Pheroliodidae Paschoal.

Lyrifissella new genus and Lyrifissellidae new family (Acari, Oribatei) are described. The type species, Pedrocortesella latoclava Hammer, 1966, from Milford, New Zealand, is fully redescribed from the holotype. The congeneric species, Pedrocortesella cryptonota Hammer, 1966, Lake Ratoitis, New Zealand, is compared with the type species and transferred to the new genus. Plateremaeus vestitus Tragardh, 1931, the species thought to be very close to Plateremaeus ornatissimus (Berlese), and which was erroneously used to characterize Plateremaeus and Plateremaeidae, causing them to be misunderstood for about five decades, is now placed in Lyrifissella.

The present paper deals with the recharacterization of the Gymnodamaeoidea and the erection of Plateremaeoidea n. grad. (Acari, Oribatei). Gymnodamaeidae Grandjean, Aleurodamaeidae Paschoal & Johnston, and Idiodamaeidae Paschoal are recognised under the Gymnodamaeoidea. Plateremaeidae Tragardh, Pheroliodidae Paschoal, Nooliodidae Paschoal, Hammeriellidae Paschoal, Lyrifissellidae Paschoal, Pedrocortesellidae Paschoal, Licnodamaeidae Grandjean and Licnobelbidae Grandjean are included in Plateremaeoidea. A key to the families and genera of Gymnodamaeoidea and Plateremaeoidea is also provided.

The present paper is the first part of the catalogue of marine fishes belonging to the collection of the Laboratory of Ichthyology (Universidade Federal do Rio de Janeiro-RJ) to be published. Here are included Chondrichthyes (Rajiformes) and part of Osteichthyes, Teleostei (Elopiformes to Dactylopteriformes) in a total amount of 30 families, 52 genera and 62 species. The most part of the material have been collected at the littoral of the State of Rio de Janeiro. For each species considered is given the vulgar name (when known in Southeastern Brazil), the known distribution (in Western Atlantic Ocean) and some data as collecting locality, total number of collected specimens and the register number in the collection. Scorpaena isthmensis Meek & Hildebrand, 1928 (Scorpaenidae) is for the first time mentioned for the Southern littoral of Brazil.

The adjustment of Calomys callosus (Rodentia, Cricetidae) to intermittent food deprivation was investigated. Animals subjected either to 24-hr or to 48-hr repeated periods of deprivation successfully compensated, showing (1) increases in post-fast intake relatively to the intake by control animals; (2) rapid recovery of the baseline levels of body wieght. The regulatory ability of C. callosus is comparable, in such respects, to the ability of the common rat and some other rodents but it is remarkably different from the hamster's.

Studies on reproduction dynamics and growth of Hoplias malabaricus were carried out in Monjolinho Reservoir (São Carlos/SP) and the following conclusions were reached to: the reproductive period occurs in September and October. The mean values of replection and gonadosomatic index and condition factor increased during the reproductive period. The size of the first sexual maturation of females was observed at 16,7 cm. The fecundity, that is relatively low, was related with total length and weight of females. The growth curve suggests a slow growth of this species.

The tadpole of Atelopus pulcher is described for the first time. Tadpoles of this species were encountered in large streams where reproduction occurs. Tadpoles of this species conform to the genus characteristics in exhibiting an enlarged ventral disc and a 2/3 tooth row formula. One characteristic, however, distinguishes this species from other Atelopodids in that the upper beak is shorter than the lower beak.