Repositório RCAAP

The activities were performed at a preserved forest named "Capão da Imbuia", in the urban area of Curitiba, Paraná, Brazil, during march/1990 till march march/1991. The tree holes studied, showed different features: soil distance, area and volume. 303 immatures forms from seven specie of Culicidae were caught: Haemagogus (Conopostegus) leucocelaenus (Dyar & Shannon, 1924), Culex (Culex) acharistus Root, 1927, Toxorhynchites (Lynchiella) theobaldi (Dyar & Knab, 1906), Culex (Culex) eduardoi Casal & Garcia, 1968, Culex (Culex) quinque-fasciatus Say, 1823, Aedes (Protomacleaya) terrens (Walker, 1856). Two species were the most frequent: Haemagogus (C.) leucocelaenus and Toxorhynchites (L.) theobaldi, both of them had the higlest medias during spring and summer. These species were in overposition during the caughts.

In this study carried out in the Caetetus Ecological Station, Sao Paulo, southeastern Brazil, a wild group of black lion tamarins was accompanied during 1989 to 1991, to analyse the dietary habits of the species. The scan sampling method was used to gather data. A total of 961 behaviors were recorded, of which feeding occupied 23.3% of the time involved in the behaviors. The major dietary components observed in the black lion tamarins were fruits, tree exudates and animal preys (67.9%, 22.8% and 8.9% respectively). Fruits varied monthly from 47.4 to 97.1 %, being consumed more during the rainy season, while tree exudates varied from 0 to 54.7%, and were consumed mainly during the dry season. The animal prey accounted for 0 to 15.8% of the diet. The most important dietary resource for the black lion tamarins was the fruit of Syagrus romanzoffiana Glass., representing 29.9% of the foraging observations. The diet exhibited pronounced differences among dry and rainy seasons, presumably as a consequence of the food shortage of fruits during dry season.

Chariergus White, 1855 is interpreted based on C. tabidus (Klug, 1825) (type species designated by Thomson, 1864). Allopeba gen.n. is proposed for A. paranaensis (Napp & Reynaud, 1998) comb.n. (type species), A. signaticornis (Lucas, 1857) comb.n. and A. quadri-punctata (Lucas, 1857) comb.n. Rierguscha Viana, 1970 and its species are redescri-bed. The morphology of Chariergus tabidus (Klug, 1825) and Allopeba signaticornis (Lucas, 1857), including the mouth pieces, endostemites, wing venation and male and female terminalia, is presented. Key for the genera and species is added.

Woodlice were reared in laboratory in the environmental climate of the city of Curitiba, Brazil, with the purpose of getting to know the process of formation of oostegites. Two kinds of cultivation were adopted: natural populations to be controlled were kept in small glass aquariums resembling the natural environment; and, new-bom woodlice were raised each one isolated in small plastic receptacles, with a special diet until two years old or over. When adults, after recognizing their sexes, males and females were put together to copulate during one or more days, and some of the females were fertilized. After 30 days, the fertilized females realized ecdise and acquired oostegites. The complete process (copulation, fecundation, incubation and birth) occurred between 25 and 50 days. The females fertilized only once produced one or more broods, each brood varying from 10 to 30 youngs. The spermatic mass reserved in the seminal receptacle depleted after having realized one, two or, rarely, three broods; the females without sperm in the receptacle realized ecdise, lost oostegites and got again virginal aspect. Females in such condition, kept alone, isolated from males have never acquire oostegites again. Otherwise, in contact with males, once fertilized they realized ecdise and acquired new oostegites. The authors have concluded that the oostegites only are formed because of the received sperm and its continuity depends on the sperm accumulated in the seminal receptacle, for more than one brood.

Nicolea venustula (Montagu, 1818) is a new record to the southern brazilian coast. A description, ilustrations and a taxonomic discussion is given.

The presence of glands in insect legs is largely difunded. In bees they are present in solitary and social species. In Centris and Epicharis three different types of glandular structures were found: bag-shaped structures in males femur and tibia, unicelular glandular cells in ali segments of all leg pairs in males and females, but more developed in females, and differentiated epidermis in the basitarsus of both sexes. The tarsal gland present in the distal tarsomere of all legs of males and females are a special type of the bag-shaped structure. The nature of secretion and it use is unknow, but some morphological and stainning properties indicate a lipidic nature.

A cladistic analysis of Euprepina Hull, 1971 (Diptera, Bombyliidae, Bombyliinae), a Neotropical genus that includes ten species, was made. The cladogram was obtained from eight studied species, based on a data matrix with 21 characters, using the program Hennig86. Character states were polarized following outgroup analysis, and an hypothetical ancestor was included in the analysis in order to root the tree. The options used, "ie*" and "xs w", resulted in four most parsimonious trees with ci = 79, ri = 80 and length 115. The monophiletism of Euprepina was supported by two synapomorphies.

The diet of pirambeba Serrasalmus brandtii Reinhardt 1874 was studied in four floodplain lakes in São Francisco river. The main food items consumed were chunks of fish flesh, small fishes, scales, fins and aquatic insects. Trophic ontogeny was observed in all lakes. The amount of fishes in the diet of S. brandtii increased with the length of the individuals, while the amount of aquatics insects, fins and scales decreased. Aquatic insects were consumed in greater proportion during the wet season. Fish ingestion, including scales and fins, was correlated with the abundance of fishes.

The factors involved in the induction of resting eggs development and hatching are poorly understood for Brachionus calyciflorus populations of South Hemisphere. The role of some abiotic factors in controlling the hatching rates of B. calyciflorus resting eggs was investigated. Determination of optimum hatching conditions would be important in developing the use of this species as food for fish larvae in aquaculture. Resting eggs were exposed to different treatments in the laboratory, and monitored for hatching over a period of five days. Optimum hatching conditions were: pH 5-9, water ionic concentrations from 220 to 880 mg.l-1 of selected salts, temperature 25 - 30ºC, photoperiod eight or more hours light per day, and light intensity equal to or greater than 850 lux.

Specimens of five bee species of the genus Ancyloscelis Latreile, 1836 were sampled during three consecutive years in Rio Grande do Sul, Brazil, with the aim to study their morphology and behavior during flower visits. Characteristics that allow to distinguish the five species are presented.

A detailed description of laboratory reared first zoea larva of Callinectes danae Smith, 1869 is given. The larvae utilized for this study were reared in vitro in a special incubator. A comparison with larvae of other species is also attempted.

Sixteen species of mammals have been described from the State of Santa Catarina, Brazil. The region is poorly represented in mammal collections, and many of these species have been synonimized on the basis of geographical proximity, without a serious consideration of their validity. The sixteen species plus one described from Paraná with a paratype from Santa Catarina are listed, with pertinent information on their type localities, correct bibliographical reference, and present status. Type localities are spelled exactly as they appear in the original descriptions.

The genus Luppetiana Brescovit, 1996 composed actually by nine species, from which five are herein described as new is revised: L. manauara from Brazil; L. levii from Dominican Republic; L. eberhardi from Costa Rica; L. piedra from Cuba; and L. bimini from Bahamas Islands. The species L. perpusilla (Banks, 1909) is synonymyzed with L. parvula (Banks, 1903). Lectotype and paralectotype of L. parvula are designated. The known geographical distribution of the genus ranges from United States of America to north of Brazil.

Data on immature stages, the behavior and the range of Titaea orsinome Huebner, [1823] are presented. The larva feeds on Eriotheca gracilipes (K. Schum.) O. Robyn (Bombacaceae). Generation (oviposition to imago) lasted 77 days. Egg, larval instars, head capsules, pupa and adults are illustrated in color.

Emerita brasiliensis Schmitt, 1935 is a common mole crab called "tatuíra" in Brazil, with distribution from Espírito-Santo State (Brazil) to Buenos Aires Province (Argentina). Specimens were collected bimonthly from May/1992 through March/1993 with 4mm siffers mesh, in the intertidal region at Vermelha do Norte Beach, Ubatuba, São Paulo, Brazil. The animals were sexed and measured with a precision caliper of 0.1 mm (Cl = carapace length). Males presented cl amplitude from 3.4-17.3mm (13.2±2.1mm), and females from 13.8-26.3mm (20.5±1.8mm), showing a well-defined sexual dimorfism for this variable. The population presented a smaller incidence of males in relation to females (0.54:1.00), however in May/1992 an inverse pattern occurred (1.84:1.00). Ovigerous females were present in all samples with exception of May and September/1992 with greater frequencies in July/1992 and January/1993. It is probable that female maturity occurs is reached with 17mm CL, the smallest size in wich ovigerous females were found.

The following new species are described: Sphenorhina danielssoni sp.n. (from Peru, Huánuco), S. huggerti sp.n. (from Ecuador, Pichincha), S. unifasciata sp.n. (from Ecuador, Napo), S. pichita sp.n. (from Peru, San Ramon, Mina Pichita), S. badia sp.n. (from Ecuador, Azuay), and S. rubrolurida sp.n. (from Bolivia, Yungas del Palmar). New characters of male genitalia are considered in the generic definition.

Collection data of Euglossinae males from Parque Estadual do Rio Doce (PERD) and Viçosa, both areas with remnants of Atlantic Rain Forest (Mata Atlântica) in Minas Gerais state, Brazil are presented. Comparisons made among three fragments with different sizes and states of disturbance from Viçosa showed differences in abundance of most common species and apparently, Eulaema nigrita Lepeletir, 1841 can be an useful indicator of disturbed sites. Some populations of euglossine bees seems to be restrict to a forest fragment, there being few or no flow of individuals or species of one fragment to another, even when they are only 1 km apart. 15 species of euglossines were sampled in PERD, and the most abundant was Eulaema cingulata (Fabricius, 1804). At Viçosa, 10 species were sampled, E. nigrita was the predominant one. Methyl salicylate attracted no males at both sites, in spite of large numbers of species and individuals sampled using this bait in other regions. The majority of species and individuals were collected in the rainy season. Only 0,58% of sampled males carried orchid pollinia (Catasetum Richard, Cycnoches Lindley and Coryanthes Hook) on their bodies. Emergence data of four species of Euglossa Latreille, 1802 reared from trap nests suggest that sex ratio in Euglossini is not a constant within the tribe. A list of 57 euglossine species now known to occur in Mata Atlântica are offered.

Neolasioptera cerei Rübsaamen, 1905 (Diptera, Cecidomyiidae) associated to Selenicereus setaceus (SD) Berg (Cactacae) is redescribed. Until now, only female was known. Male, pupa and larva are described and illustrated herein.

The response of Cosmopolites sordidus (Germar, 1824) to the volatiles of its host banana plant (Musa paradisiaca cv. Prata) and conspecific adults was studied. In olfactometer, the attraction of males and females of C. sordidus to rhizome and pseudotem of the banana, fresh or rotting, was observed. The results suggested that the aggregation pheromone is produced by males and that it attracts both sexes, and that there is another pheromone produced by females which attracts males only. The results also suggest that the females are the first responsible for the aggregation of the species, but the male pheromone is mainly responsible for the mass aggregation. Nevertheless, the aggregation phenomenon is a consequence of the mutual action of both pheromones plus the kairomones produced by the banana plant.

Data on the life cycle and morphology of immature stages of Actinote surima (Schaus, 1902) are presented. The larva feed on leaves of Eupatorium intermedium DC and Eupatorium casarettoi (Rob.) Steyermark (Asteraceae).