Repositório RCAAP

The families Licnodamaeidae and Licnobelbi ee are recharacterized. Licnodamaeidae includes the sole genus Licnodamaeus Grandjean, with the species: undulatus (Paoli), pulcherrimus (Paoli) and costula Grandjean, all from Europe; the gen b Licnocepheus Woolley is removed from the family Licnodamaeidae. Licnobelbidae includes also one single genus: Licnobelba Grandjean, with the species: alestensis Grandjean, caesarea (Berlese) and montana Mihelcic, all from Europe. Licnodamaeus granulatus Balogh & Csiszár) (Argentina), Licneremaeus latiflabellatus Paoli and Licneremaeus tuberculatus Paoli (both from taly) are considered incertae sedis.

The south American genus Idiodamaeus Paschoal (with 3 espécies) is removed from the Gymnodamaeidae, to constitute the family Idiodamaeidae, fam. n., herein characterized.

Rhythmic activity patterns are demonstrated for 15 species of fish in várzea lakes of the Solimões river by analyzing catch per hour-of-day data. Supplemented by visual observation, an array of six gillnets of equal length but different mesh size was used for collecting. The data, in general, show a bimodal pattern of activity. The two peaks of catch can be related to movement during twilight periods, while low catches can be ascribed to reduced activity during times close to mid-day or night Observed activity peaks correspond to local displacements of fish between feeding and shelter sites. In the case of piscivorous fishes, activity peaks could be explained by facility in prey localization, which is greatest during twilight periods when prey species are moving.

The Stannius corpuscles of Prochilodus scrofa are studied microscopically (both optically and electronically) as well as macroscopically. Two CS, and sometimes 3 or 4, are found per animal. They are pink-coloured organs, rounded in shape and scattered laterally in the first anterior third of the kidney. Each CS is enveloped by a thick connective tissue capsule. The grandular parenchyma consists of only one cellular (PAS-/AF-) type, cylindrical in shape, with oval or rounded nucleus located eccentrically with visible nucleolus. The ultrastructural description is as follows: well developed Golgi complexes, rough endoplasmic reticulum and mitochondria in moderate quantities. Electron-dense granules numerous. CS highly vascularized.

Hyla ranki, sp. n., is described from the state of Minas Gerais, southeastern Brazil. This new species resembles Hyla rizibilis Bokermann, 1964. The advertising call and the tadpole are also described. Observations on the biology of the new species are referred and the recognition of the group rizibilis, constituted by H. rizibilis and H. ranki, sp. n., is proposed. Hyla mirim B. Lutz, 1972 is synonymized with H. rizibilis.

The case of the Indigo, or Lear's Macaw, Anodorhynchus leari, is unique in South American ornithology. The species, although described more than 100 years ago, was known only through very few living specimens, which entered occasionally the bird trade, without any indication of their origins. It was presumed "probably some part of Brazil" (Salvadori, 1891). The last speculation was that it was unlikely, though not impossible, that the Indigo Macaw might not be an independem species, but rather, a hybrid between the two other well known blue macaws, Anodorhynchus hyacinthinus and A. glaucus (Voous, 1965).

No summary/description provided

No summary/description provided

Phragmatopoda lapisosa Kinberg (Polychaeta, Sabellariidae), originaliy described from the Brazilian coast, has had its distribution much enlarged lately. As the original description is not sufliciently clear, I add here some characteristics for its recognition the shape of the opercular paleae is a decisive character for its identification.

The morphology of the parts and the configuration in situ of the worker digestibe tube of the 8 soilfeeding genera with nasute solidiers from the Neotropical Region are studied. All genera showed a reduced or incomplete gizzard armature, a tubular first proctodeal segment terminating in the left half of the abdomen, an enteric valve armature with trilateral symmetry and often with strong spines, a paunch of two large sections separated by a constriction, and a long colon. In addition, a mixed segment at the mesenteron-proctodeal junction is absent in Convexitermes, Atlantitermes, Araujotermes, Coatitermes, Subulitermes and Agnathotermes, and present in Cyranotermes and Angularitermes, the latter having also a gizzard armature stronger than usual in the soilfeeding nasutes. The coiling of the gut and the morphology of some gut parts provide a good means for the identification of undissected workers of all genera.

The morphology of the mandibles of the alates and workers of the 8 soil-feeding genera with nasute soldiers from the Neotropical Region is studied. Three mandibular patterns are recognized : (1) Convexitermes, Atlantitermes, Araujotermes, Coatitermes, Subulitermes and Agnathotermes have mandibles with complete marginal dentition and no reduced teeth, (2) Angularitermes has mandibles with complete marginal dentition but two teeth are vestigial, and in (3) Cyronotermes the marginal dentition is incomplete. A set of other characteristics is associated with each of these mandibular patterns. Intraspecific variation are registered, either between the alate and the worker castes of all genera, as between the worker types of the dimorphic worker caste of the genera with complete and developed marginal dentition. Such dimorphism was previously unreported for the soil-feeding Nasutitermitinae; the soldier arises from one worker type.

In this study a number of caves from various Brazilian limestone regions were surveyed. The information gathered expands and improves that of our preliminary article, allowing a reasonable good picture of the Brazilian cave fauna. There doesn't seem to be any striking difference between the composition of the Brazilian cave fauna and that of the other tropical regions that have been studied. Animals commonly found throughout the studied area include: Phalangopsidae crickets, Reduviidae heteropterans, Polydesmida and Juliformida millipedes, Opilionida Laniatores, and spiders, particularly Scytodidae, Ctenidae, Theridiosomatidae and Pholcidae. Among the vertebrates the commonest are barts and catfishes. Amblypygi are common in all regions except São Paulo State, which is outside the group geographical distribution. Cockroaches are frequent in the warm caves to the north of Vale do Ribeira (São Paulo State) where these animals are rarely seen. The cave fauna of the Vale do Ribeira is better Known than that of other Brazilian regions. Those small secretive species often found in Vale do Ribeira are probable also common elsewhere: beetles (partilarly the Carabidae, Leiodidae Catopinae, and, to a lesser exyent, the Pselaphidae and Otilodactylidae); dipterans (in special Chironomidae and Keroplatidae); and typically soil animals like collembolans and earthwormos. The sandstone cave fauna is basically the same found in limestone. The only difference seems to be the larger amount of batguano found in the former, conditioning larger populations of guano-feeding arthropods such as crickets and juliformid millipedes. The fauna of the entrance and twilight zone is characterized by the predominance of the Arachnida like opilionids Goniosominae and spiders Pholcidae, and heteropterans Reduviidae; the only typical dipteran of this fauna is the larval form of the fungus gnat Neoditomyia sp. (Mycetophiloidea). It was also observed a stratification within the studied cave communities as a result of the preference of various species toward determined substrates. As in other tropical regions, terrestrial predator troglobites are rare in Brazil, in contrast with temperate caves, characterized by a larger number of such species (particularly among the spiders and beetles). For Brazil only a genus of carabid beetle (Schizogenius spp ), an unidentified species of pselaphidae beetle and some pseudoscorpions, among the terrestrial predators, have been found bearing troglomorphic characters. The Brazilian troglobites are mainly aquatic organisms (catfishes and crustaceans) or terrestrial detritivores/omnivores like isopods and polydesmide millipeds.

No summary/description provided

Using material collected by the Oceanographic Expedition MD04 in the Continental Shelf of Kerguelen Islands, Subantarctic Region, we focused the dominance and the density of the different zoological groups found to be present in relation to the Annelida Polychaeta.

Os autores descrevem sete espécies novas da tribo Resthenini Reuter (Hemiptera, Miridae, coligidos nas repúblicas da Argentina e do Chile, como segue: Nanniresthenia penai, sp. n, Chile; N. cordobensis, sp. it, Argentina, Platytylus saltensis, sp. n., Argentina; Prepops correntinoides, sp. n., Argentina; P. entrerianus, sp. n., Argentina; P. iguazuensis, sp. n., Argentina; P. oranensis, sp. n., Argentina. Ilustrações de corpo inteiro e genitália do macho acham-se incluídas.

The histology and morphology of the reproductive system of females of Rhagoletis conversa (Brèthes) and Rhagoletis nova (Schiner) were studied. These species parasitize wild and cultivated Solanaceae respectively. Adult females of both species were collected in natural populations in the Central Zone of Chile. In order to study the development of ovaries the females collected were sacrificed at different ages. Once obtained, ovaries were preparedfor optical microscopy by using histological and squash standard techniques. Results show that within each one of ovarioles it can be observed follicles arranged in line and showing different stages of maduration. It can be described about 6 follicle stages in the ovarioles studied. Ovaries of both species show a very similar structure. However, females of Rhagoletis nova show an ovipositor wider than R. conversa. The number of ovarioles of R. nova is also higher than in R. conversa.

In this paper larval and pupal stages of Trachyderes striatus (Fabricius) are described. Some aspects of its biology are added.

This note reports on three species of Pseudothelphusidae crabs, Microthelphusa simoni from Venezuela, Hypolobocera rathbuni from Ecuador and Epithelphusa chiapensis from Mexico, that were found in the collection of the Museu de Zoologia da Universidade de São Paulo. Illustrations of the gonopods are given.

During the study of the Carcinofauna of the Bahian Coast, some Brachyura Portunidae were found. Some of these animals were Callinectes arcuatus Ordway, 1863 which has its distribution restricted to the Pacific Ocean, from California to Peru and the Galapagos Islands. This is the first occurrence of this species reported from the Atlantic Ocean and the Brazilian Coast (Bahia, 38º50'Wand 12º50'S).

A new species of Meticonaxius from Brazil (Crustacea, Decapoda, Callianideidae). Meticonaxius capricorni, sp. n., is described from material collected off Rio de Janeiro and São Paulo States, in depths of 139-214 metres. The genus Meticonaxius up to now has 3 species in Brazil: M. lemoscastroi Rodrigues & Carvalho, M. minutus Coelho and this new species