Resumo em Inglês:

The type locality, depositary museums, geographical oceurrences, biological behaviour, flowers visited and taxonomical notes from the species of the neotropical Colletini are mentioned. The following nomenclatural changes are introduced: Monidia Cockerell, 1905; Rhynchocolletes Moure, 1943; Hemicotelles Toro & Cabezas, 1997; Xanthocotelles Toro & Cabezas, 1978 and Colletes griseus Smith, 1879 are revalidated; Colletes desanlisi nom. n. is proposed to Colletes similis Joergensen, 1912, non Schenck, 1853 nec Robertson, 1904; a new combination to Mourecotelles biciliatus (Cockerell, 1918) is given. Lectotypes of the following species are designated: Colletes araucariae Friese, 1910; C. argentinas Friese, 1908; C. atripilis Vachal, 1909; C. azureus Friese, 1912; C. chalybaeus Friese, 1910; C. ciliatus Friese, 1910; C. clarus Joergensen, 1912; C. cognata Spinola, 1851; C. costaricensis Friese, 1916; C. cyaniventris Spinola, 1851; C. dimidiala Spinola, 1851; C. enodis Vachal, 1909; C. eupogonites Moure, 1949; C. extensicornis Vachal, 1909; C.fulvipes Spinola, 1851; C. glycyrrhizae Joergensen, 1912; C. griseus Smith, 1879; C. joergenseni Friese, 1910; C. laticeps Friese, 1910; C. longipes Friese, 1910; C. lycii Joergensen, 1912; C. mininca Cockerell, 1914; C. molaguensis Cockerell, 1912; C. murinus Friese, 1900; C. musculus Friese, 1910; C. neuqueenensis Friese, 1910; C. perplexas Smith, 1879; C. peruvicus Cockerell, 1913; C. plantaris Vachal, 1909; C. senilis Smith, 1879; C. speculiventris Cockerell, 1917; C. pinnatus Vachal, 1909; C. rugicollis Friese, 1900; C. schrottkyi Joergensen, 1912; C. sicheli Vachal, 1909; C. spiloptera Cockerell, 1917; C. steinbachi Friese, 1910; C. sulcatus Vachal, 1909; C. tingoensis Cockerell, 1926; C. tomentasus Friese, 1910; C. vachali Joergensen, 1912; C. virgatus Vachal, 1904; C. weiskei Friese, 1912; Monia griseaWcstwood, 1875. Are recognized as new synonyms; Colletes argentinas Friese, 1908, syn. n. of C. rugicollis Friese, 1900; C. campai Herbst, 1920, syn. n. of C. rhodaspis Cockerell, 1909; C. viridans Vachal, 1909, syn. n. of C. cyunescens (Haliday, 1837).

Resumo em Inglês:

The type localities, depositary museums, taxonomical comments and host plants of the species of Hylaeus Fabricius, 1793, the unique genus of the Hylaeinae in the Neotropical Region, are mentioned. Lectotypes of the following species are designated: Prosopis bothros Schrottky, 1910; Prosopisfissa Vachal, 1901; Prosopis itapuensis Schrottky, 1906; Prosopis opaca Schrottky, 1906; Prosopis opaciventris Friese, 1925; Prosopis paraguayensis Schrottky, 1906; Prosopis recisa Vachal, 1910; Prosopis scabra Vachal, 1909; Prosopis sculptilis Schrottky, 1910; Prosopis tricolor Schrottky, 1906 and Prosopis trivittata Friese, 1916. The following ones are recognized as new combinations; Hylaeus petroselini (Schrottky, 1906); Hylaeus polybioides (Schrottky, 1906), Hylaeus polybiaeformis (Schrottky, 1907) and Hylaeus psammophilus (Schrottky, 1906).

Resumo em Inglês:

The present study seeks to elucidatc reproduetive aspects of Sphoeroides testudineus (Linnaeus, 1758), Tetraodontidae. Monthly collections were accomplished for one year (November/98-October/99), in the gamboa do Baguaçu, Bay of Paranaguá with a Fyke net. The macroscopic analysis of the gonad stages allowed us to estimate the sexual proportion as 1:1 during the whole period, except in the months of May and October, when the proportions of two females for one male and two males for one female were observed respectively. The analysis of the relative frequency of the monthly gonad stages and the Curve of Maturation aided in the determination of the reproduetive period, that oceurred from September to January. Microscopic analyses of the female gonads allowed us to characterize four develo-pment phases of the ovarian follicle, six stages of ovarian development and the type of spawn, which was parceled. The first maturation for females was estimated to be betwecn 10-11 cm of length.

Resumo em Inglês:

The present study analyses the reproductive aspects of Sphoeroides greeleyi (Gilbert, 1900), such as morphology and histochemistry of carbohydrates in the oogenesis phases, maturity scale, time and type of spawn, sexual rate and first ripened mature size for females. From the monthly captured animais (Nov 1998 to Nov 1999) the morphometric data (entire length and total weight) were extracted and the sex and the gonadal maturity were determined. Some ovaries were prepared for microscopic analysis that charac-terized six phases for the development of the ovarian folheies. Through the carbohydrates analysis the acid carbohydrates could be related to the oogenesis maintenance and the neutral carbohydrates to the beginning of embryonic development. A maturity scale containing six stages of gonadal development was determined. The reproductive period is between August and January and the spawn time is from October to January. The first ripened mature size for females oceurs between 6,5cm and 7.5 cm of total length. The sexual rate shows that there are more females than males during the reproductive period.

Resumo em Inglês:

Lizards may benefit from gain of heat from contact with the substrate via conduction. In this study, evidence that the lizards Mabuya agilis (Raddi, 1823) and Mabuya macrorhynclui Hoge, 1946 (Scincidae) inhabiting two restinga habitats in southeastern Brazil (Grussaf, Rio de Janeiro and Praia das Neves, Espfrito Santo), may shift microhabitat preferences along the day, and that such shifts may be related to the use of cacti surfaces as direct sources of heat is presented. For both species, body temperature (Tb) was always significantly correlated (p < 0,05) with air temperature (Ta). Tb was significantly correlated (p < 0,0.5) with substrate temperature (Ts) for M. agilis collected on cacti, but not for specimens collected on the ground. For M. macrorhyncha collected on cacti, both Ta and Ts were more important in conjunction than separately, in explaining lizard Tb. Use of cacti as perches by M. agilis was more frequent during late afternoon when environmental temperatures are declining, but such a trend was not evident for M. macrorhynclui. We suggest that the use of cacti as direct heat sources may be more evident in the ground-dwelling M. agilis than in the scansorial M. macrorhynclui.

Resumo em Inglês:

The cynodontid fish Rhaphiodon vulpinus Agassiz, 1829, known as "peixe-cachorro", is the only species of the family oceurring in the Pantanal of Mato Grosso. The initial development of its larvae was characterized, based on material collected with a 500 µm mesh size plankton-net, in several biotopes of the Pantanal of Barão de Melgaço, State of Mato Grosso, Central Brazil. The analysis was carried out with 72 larvae with standard length (SL) between 4.7 and 13.8 mm. The morphometric measurements varied positively with standard length, and body proportions ranged 8.1-17.8% for head length (HL), 6.2-10.1% for body height, and 63.673.5%, 16.8-21.6%, and 61.8-78.2% SL, respectively for pre-dorsal, pre-pectoral and pre-anal distances. The eye diameter varied positively with HL and its proportion varied between 9.1 -22.5% HL. The body relations did not show great variation along the larval development. The morphologicai characterization of larvae from 4.7 to 5.8 mm SL, in the pre-flexion phase, showed lhe presence of anembryonic finfold covering the unraycd fins, exposed branchial arches, absence of exogenous digestive content, unpigmented eyes and round shaped head. Larvae with SL between 8.1 and 13.8 mm SL were in the flexion phase, presenting a pointed head, mouth filled with externai and internai rows of numerous teeth, presence of exogenous food, pigmented eyes, branchial filaments still exposed, evident swimming-bladder, and formation of the first caudal, dorsal and anal fins' rays. Only individuais in the pre-flexion and flexion phases were analyzed, and no completely developed fin was evidenced. A maximum number of 69 myomeres was counted and no evident pigmentation over the body observed. Comparing R. vulpinus larvae to those of other Characiformes, it was observed that this species and Apareiodon affinis Steindachner, 1879 present smaller body proportions, and variation range of body height, while R. vulpinus is characterized by a shorter eye diameter. The myomere number is a relevam feature for the idenlification of R. vulpinus larvae, since it is the Characiform that possesses the highest myomere number, among those species of this family studied so far.

Resumo em Inglês:

The project "Survey of the Entomolo-gical Fauna in Paraná" (PROFAUPAR) was carried out in eight localities of Paraná, Brazil, during two years. In the first year a total of 1.607 specimens of Syrphidae were collected with Malaise trap. The species Toxomerus tibicen (Wiedemann, 1830), Microdon milis Curran, 1940 and Leucopodella gracilis (Williston, 1891) were the most abundant. The abundance and seasonality of each species are evaluated.

Resumo em Inglês:

Apsil diminuta sp. n. is described from Chile. Male terminalia is illustrated.

Resumo em Inglês:

Two new Mycale (Naviculiiia) Gray, 1867 are described, M. (N.) arcuiris sp. n. and M. (N.)purpurata sp. n., from the Paulista Biogeographic Province (Southwestern Atlantic). They both occur in the São Sebastião Channel area (São Paulo stale coast), the former extending its known distribution to "Arvoredo Marine Biological Reserve" (Santa Catarina state coast). The new species are sibling and differ from each other by a series of very small traits, the most notorious being live-color: yellow, orange, green, white, grey and beige, always light, in M. (N.) arcuiris sp. n. and bordeaux in M. (N.) purpúrala sp. n. Both species are compared with other known M. (Naviculiiia). Mycale (Aegogropila) henlscheli Sim & Lee, 2001 is transferred to subgenus Naviculiiia and given a new name, viz. M. (N.) chungue nom. n., as the specific name was preoccupied by M. (Curmia) henlscheli Bergquist & Fromont, 1988. An identification key for all the species hitherto assigned to the subgenus is provided.

Resumo em Inglês:

An extensive survey for freshwater sponges was carried at the temporarely exposed rocky bottoms of river Corumbá at Goiás State and river Manso at Mato Grosso State. The exposure resulted from the closing of the dams for lake formation at the respective Hidreletric Power Plants. Drulia uruguayensis Bonetto & Ezcurra de Drago, 1968, Corvospongilla seckti Bonetto & Ezcurra de Drago, 1966 and Trochospongilla repens (Hinde, 1888) were seen to be common to both rivers. Eunapiusfragilis (Leidy, 1851), Oncosclera navicella (Carter, 1881) and O. petricola (Bonetto & Ezcurra de Drago, 1969) were yet found in river Manso and O. schubarti (Bonetto & Ezcurra de Drago, 1967) in river Corumbá. O. schubarti is redescribed and SEM illustrated.

Resumo em Inglês:

The mites of three rubber tree cultures (Cedral, Pindorama and Taquaritinga) in order to determine the abundance of populations, the richness, the diversity and the degree of similarity among the communities was studied. Twenty one species were found, five of which were common to the three cultures. The richness and the abundance were greatest at the beginning of the dry season. The composition of communities differed probably as consequence of the kind of neighboring vegetation to each area, and because of the acaricid pulverization on the culture of Taquaritinga, reductng the richness of mite species in that area. The influence of neighboring vegetation can be shown by the occurrence of Iphiseiodes zuluagui Denmark & Muma, 1972, a common species to citrus trees, on neighboring rubber trees in Taquaritinga, and Tenuipalpus heveae Baker, 1945, a common species on rubber trees, on a coffee culture neighbor to the rubber trees of Pindorama. This data suggests that mites move among neighbor cultures, and can be an importam factor towards pest management and control. The diversity was small on the three cultures, as a result of the occurrence of one dominam species on each area, Calacarus heveae Feres, 1992 or T. heveae, which are considered pests of the rubber tree. The small diversity and the occurrence of dominant species are patterns expected in monocultures, systems with small environmental heterogeneity.

Resumo em Inglês:

Ascocotyle (Phagicola) rara sp. n. is described from the intestine of Ixobiyclius exilis (Gmelin, 1789), a Brazilian bittern. The new species is compared with Ascocotyle (Phagicola) angeloi Travassos, 1928 and Ascocotyle (Phagicola) moUieiiisicola (Sogandares-Bernal & Bridgman, 1960); the main distinguishing characters are related to the aspect of the gonotyl that is not perforated in A. (P.) rara sp. n. when compared to A. (P.) mollienisicola and the absence of the crown of spines at the anteriorend in the new species compared withA. (P.) angeloi. This is an important finding, since human infections by Phagicola spp. have been previously reported in Brazil.

Resumo em Inglês:

The first case of a natural avian infection caused by the digenetic trematode Ascocotyle (Phagicola) longa Ransom, 1920 in Brazil, is reported from the ardeid bird Ardea cocoi Linnaeus, 1766. This represents a new host record and data on clinical and pathological findings are also reported.

Resumo em Inglês:

A new species of oxyurid, Skrjabinodon spinosulus, is described, on the basis of samples recovered from Mabuya dorsivittala Cope, 1862 in Brazil. Skrjabinodon spinosulus sp. n. is included in the group in which the males are provided with a spicule. The new species proposed herein, differs from those of the group, by the large number of spines (70-80) on the tail of the females when compared to those (3-48) in the other species. The number of spines is a character of great taxonomic importance in the specific diagnosis of these nematodes. This is the second report of the genus Skrjabinodon Inglis, 1968 in South America.

Resumo em Inglês:

The larval ontogeny and swimming behavior of the characid fish Salminus brasiliensis (Cuvier, 1816) were studied under experimental laboratory conditions, from hatching to yolk absorption. At day 1, the larvae were transparent, with sparse dendrite chromatophores and a well-developed adhesive organ on the head. The retinal epithelial cells were initiating pigmentation. The branchial arches were at the initial phase of differentiation. The larvae were able to perform only vertical displacements and, when resting on the tank bottom, remained in lateral decumbency, in groups of 3 to 15 larvae. On day 2, the mouth was open, with conical teeth, and the digestive tube presented lumen and folded mucosa. The gaseous bladder and pectoral fins also were in differentiation. The larvae performed vertical and horizontal movements, adhered to the water surface by means of the adhesive organ or formed groups of three to six on the tank bottom. On day 3, the adhesive organ turned dorsal, the retina was pigmented, the digestive tube mucosa showed goblet cells, and the yolk sac exhausted. The larvae were now scattering in the water column forming no groups on the bottom.

Resumo em Inglês:

The diet, activity and reproductive patterns of several species of bats were investigated in primary forests of Central Amazon. Between August 1996 and August 1997, using mist nets set both at canopy and understorey levels, 936 bats, belonging to 51 species, 31 genera and 6 families were captured. Fecal samples from 35 species were examined, with four food categories and 25 food items identified. Time of captures indicate a wide variation, but the major part of the species presented a peak of activity around the first hour after sunset. Three reproductive peaks were observed: October-November; January-February; and July-August, but reproductive patterns varied among the families. The structure of the bat fauna in Manaus is similar to other sites in the Amazon and Central America, the main common points being: a) a high diversity of bat species, usually more than 40 species representing 6-8 families; b) 3-4 very common and geographically widespread species; c) most species are represented by a few captures; d) frugivorous species dominate the fauna and insectivorous species are less often captured; and e) most species cluster in 2-3 guilds, dominated by small (< 12 g) species.

Resumo em Inglês:

The genus llithucia Stal, 1869, considered up to now as a junior synonym of Antonae Stal, 1867, is revalidated. Otherwise, the genera Centrugonia Stal, 1869, Electrophina Buckton, 1905, Penichrophorus Richter, 1943, and Achantomedes Fon-seca & Diringshofen, 1974, are brought into llithucia Stal as new synonyms, except Electrophina already considered so. Some other nomenclatural changes are introduced, such as revalidated names, new combinations, restored combinations, and new synonymies: llithucia Stal, 1867 nom. rev. = Centrugonia Stal, 1869 syn. n. = Penichrophorus Richter, 1943 syn. n. = Achantomedes Fonseca & Diringshofen, 1974 syn. n.; llithucia brevicornis (Richter, 1941) comb, n.; llithucia centrotoides (Walker, 1858) comb. n. = Stictocephala nigriventris Funkhouser, 1919 syn. n. = Centrogonia flavolimbata Goding, 1921 syn. n. = Penichrophorus bogotensis Richter, 1943 syn. n. = Ceresa luteimaculata Funkhouser, 1940 syn. n.; llithucia ciliata (Fairmaire, 1846) comb. n. = Ceresa extensa Walker, 1858 syn. n. = Centrogonia lutea Funkhouser, 1919 syn. n.; llithucia dilalata (Richter, 1943) comb. n.; llithucia elegans (Fowler, 1895) comb, n.; llithucia grisescens (Funkhouser, 1940) comb, n.; llithucia incorni-gera (Richter, 1942) comb, n.; llithucia impressa (Richter, 1943) comb, n.; llithucia nasuta (Stal, 1859) comb. n. = Penichrophorus sericatus Richter, 1943 syn. n.; llithuciapinguicornis (Funkhouser, 1919) comb, n.; llithucia reducta (Richter, 1955) comb. n.; llithucia richteri (Kopp & Yonke, 1979) comb, n.; llithucia terminata (Fairmaire, 1846) comb. rest. = Ceresa morio Fairmaire, 1846 syn. n. = Achantomedes flavocephala Fonseca & Diringshofen, 1974 syn. n.; llithucia vianai (Remes-Lenicov, 1970) comb. n. The following new species are described and illustrated: llithucia delvalle sp. n. (from Venezuela), llithucia nigrata sp. n. (from Colombia), and llithucia boliviano sp. n. (from Bolivia).

Resumo em Inglês:

Some aspects on nidification behavior of three species of turtles [Podocnemis unifdis (Troschel, 1848), Podocnemis sextuberculata (Cornália, 1849) and Podocnemis expansa (Schweigger, 1812)] in the northern Brazilian Amazônia are reported. The three species showed similar nidification activities.

Resumo em Inglês:

The marine manatee Trichechus manatus manatus Linnaeus, 1758 is endangered in the Brazilian Atlantic coast due to indiscriminate hunting practiced in the past, and to the low reproductive rate of the species. This work studies its use of space and temporal occurrence in the coastal area of Sagi, Northeastern Brazil. Daily observations from the beach of the animals in the sea were made during daytime from 1990 through 1993. The presence of reefs covered with marine algae is a determinant factor in the occurrence of the manatee. They were sighted feeding on algae that grow over the reefs close to beaches that were of high energy during high tide. The range used by manatees shifted according to tide. They occur in depths of 0.4 to 3.8 m; the distance from the beach varies according to the tide level. They show marked seasonality of occurrence, with higher frequencies in December - January and lowest in June - July. Two possible causes of the seasonal occurrence are discussed. Sagi is important for the conservation of the species in Northeastern Brazil as feeding and reproductive grounds.

Resumo em Inglês:

The following new genera with their type-species are described: Oxynetrini: Cyclopyge gen. n. - type-species: Pyrrhopyge roscius Hopffer, 1874; Pyrrhopygini: Arnysoria gen. n. - type species: Pyrrhopyga [sic] galgala Hewitson, 1866, Chalypyge gen. n. - type species: Pyrrhopyga [sic] chalybea Scudder, 1872, Creonpyge gen. n. - type species: Pyrrhopyga [sic] creon H. Druce, 1874, Cyanopyge gen. n. - type species: Pyrrhopyge sangaris Skinner, 1921, Gunayan gen. n. - type species: Pyrrhopyga [sic] rhacia Hewitson, 1875, Jonaspyge gen. n. - type species: Pyrrhopyga [sic] Jonas C. Felder & R. Felder, 1859, Melanopyge gen. n. - type species: Pyrrhopyga [sic] maculosa Hewitson, 1866, Mimardaris gen. n. - type species: Pyrrhopyga [sic] sela Hewitson, 1866, Mysarbia gen. n. - type species: Pyrrhopyge sejanus Hopffer, 1874, Ochropyge gen. n. - type species: Pyrrhopyge ruficauda Hayward, 1932. Apyrrothrix Lindsey, 1921 and Yanguna Watson, 1893 are revalidated. The following are revalidated combinations: Apyrrothrix araxes (Hewitson, 1867), Apyrrothrix arizonae (Godman & Salvin, 1893), Yanguna cometes cometes (Cramer, 1770), Yanguna cometes cometides Mabille & Boullet, 1908, Yanguna cometes staudingeri (Plštz, 1879), Yanguna cosyra (H. Druce, 1875), Yanguna spatlosa spatlosa (Hewitson, 1871), Yanguna spatlosa aspllos Mabille & Boullet, 1908, Yanguna spatlosa mabillei H.H. Druce, 1909, Yanguna tetricus Bell, 1931, Yanguna thelersa (Hewitson, 1866), The following are new combinations: Cyclopyge roscius roscius (Hopffer, 1874), Cyclopyge roscius flavomaculata (Bell, 1937), Cyclopyge roscius iphimedia (Plštz, 1886), Yanguna erebus (Plštz, 1879), Gunayan rhacia (Hewitson, 1875), Gunayan rubrlcollts (Sepp, [1841]), Gunayan timaeus (Bell, 1931), Chalypyge chalybea chalybea (Scudder, 1872), Chalypyge chalybea chlorts (Evans, 1951), Chalypyge zereda zereda (Hewitson, 1866), Chalypyge zereda hygieia (C. Felder & R. Felder, 1867), Chalypyge zereda insana (Staudinger, 1876), Chalypyge zereda rufinucha (Godman & Salvin, 1879), Chalypyge zereda rufipectus (Godman & Salvin, 1879), Chalypyge zereda zepha (Evans, 1951), Ochropyge ruficauda (Hayward, 1932), Melanopyge cossea (H. Druce, 1875), Melanopyge erythrosticta (Godman & Salvin, 1879), Melanopyge hoffmannl (Freeman, 1977), Melanopyge maculosa (Hewitson, 1866), Melanopyge mulleri (Bell, 1934), Jonaspyge Jonas (C. Felder & R. Felder, 1859), Jonaspyge aesculapus (Staudinger, 1876), Jonaspyge tzotzlll (Freemann, 1969), Creonpyge creon creon (H. Druce, 1874), Creonpyge creon lillana (Nicolay & Small, 1969), Creonpyge creon laylori (Nicolay & Small, 1981), Cyanopyge sangaris (Skinner, 1921), Mysarbia sejanus sejanus (Hoppfer, 1874), Mysarbia sejanus erythrostigma (Ršber, 1925), Arnysoria galgala (Hewitson, 1866), Mimardaris aetata (Godman & Salvin, 1879), Mimardaris Umax (Evans, 1951), Mimardaris mlnthe (Godman & Salvin, 1879), Mimardaris montra (Evans, 1951), Mimardaris pityusa (Hewitson, 1875), Mimardaris porus poms (Evans, 1951), Mimardaris porus mortis (Evans, 1951), Mimardaris sela sela (Hewitson, 1866), Mimardaris sela aequatorea (Róber, 1925), Mimardaris sela chanchamayonis (Draudt, 1924), Mimardaris sela periphema (Hewitson, [1875]), and Mimardaris sela peruviana (Draudt, 1921). The following is a new synonym: Tamyris hygieia C. Felder & R. Felder, 1867 of Pyrrhopyga [sic] zereda Hewitson, 1866. Mysarbia sejanus stolli Mielke, ssp. n. is a replacement name for Papilio thasus Stoll, 1781, preoccupied by Stoll, 1780.

Resumo em Inglês:

The genus Cundinamarca Rindge, 1983 (Geometridae, Ennominae, Nacophorini) concerns four neotropical species. A fifth species from Brazil is now described: Cundinamarca beckeri sp. n.

Resumo em Inglês:

Among the portunid crabs collected during the Ilha Grande Project (1966-1969), one specimen of Polybius navigator (Herbst, 1794) was found. This species formerly known from the Eastern Atlantic, Mediterranean and Adriatic and Black Seas is redescribed, illustrated and comments on the new status of the genus is done. It is the first record of this species for the Brazilian coast and Western Atlantic.

Resumo em Inglês:

The diet of some leaf-nosed frugivorous bats - Artibeus Leach, 1821, Carollia perspicillata (Linnaeus, 1758) and Sturnira lilium (e. Geoffroy, 1810) - was studied for nine consecutive months through faecal analysis of individuais captured with mist-nets in a small forest remnant of Paraná state, Brazil. The analysis revealed that Artibeus spp. exhibited preference for fruits of Ficus spp. and Carollia perspicillata for those of Piper spp., which is in accordance with the results of previous studies. But contrary to what was expected, fruit of Solanum spp. were not found for the diet of Sturnira lilium in spite of their high availabilily (16 species) in the study area and their known relationship with this bat genus. The species of consumed fruit belonged to several plant life forms (trees, bushes, and lianas) and occurred in several habitais. This result emphasizes the importance of keeping habitat diversity, especially in small isolated reserves. Most consumed fruits were green, in agreement with the chiropterochoric syndrome, but ali seeds were small due to limitations of the sampling method. Fruit species abundance in the study area did not seem to have influenced their consumption, but intra-specific fruit availability did so, since most fruits were consumed within their intra-annual peak of availability.

Resumo em Inglês:

The systematic relationships in the species of the genus Odontesthes Evermann & Kendall, 1906 were analysed by multivariate morphometry, using data adjusted for alometric size effects by orthogonal projections. The results are discussed in terms of morphological differentiation to each geographic units. It was concluded that seven species were identified in the southern Brazilian coast. Five of them inhabit freshwater environments, O. bonariensis (Valenciennes, 1835), O. humensis De Buen, 1953, O. retropinnis (De Buen, 1953), O. aff. perugiae Evermann & Kendall, 1906 and O. mirinensis Bemvenuti, 1995. The freshwater atherinids with the largest body size, O. retropinnis, O. bonariensis and O. humensis, can be distinguished by snout size, mouth position and number of gill rakers on the first branchial arch. The small size silversides, Odontesthes aff. perugiae and O. mirinensis, showed features of similar morphologic and sympatric distribution. The remaining species were represented by O. incisa (Jenyns, 1842), that occurred in coastal areas and O. argentinensis (Valenciennes, 1835) in brackish waters. In the last species, intraespecific morphological variation is attributed to phenotypic plasticity, resulted from environmental conditions found in that ecosystem.

Resumo em Inglês:

Four colonies of Plebeia saiqui (Holmberg, 1903), of São Francisco de Paula, were studied during the period from October/1998 to October/1999. The counting of the bees was proceeded monthly, differentiated workers that came back with and without pollen in the corbicula. Grains of pollen of pots previously marked were collected monthly and identified. The percentage of the pollen types of the samples was estimated: 20% of Asteraceae, 17% Myrtaceae, 15% type Meliaceae and 10% Euphorbiaceae. The remaining corresponds to other pollen types of small representation, besides those the were no identified. The climatic influence on the pollen collection was analyzed being used simple and multiple regressions. It was verified that in the spring and in the summer the temperature, the solar irradiation and relative humidity were significant for the pollen foraging. During autumn and winter the relative humidity had smaller influence in the pollen collection.

Resumo em Inglês:

This note reports for the first time a "male sleeping aggregation" of the solitary bee Oxaea austera Gerstaecker, 1867 (Hymenoptera, Apoidea, Oxaeinae) found near the town of Iaçú, Bahia, in Northeastern Brazil. This is also the first record of a species of Oxaea for the caatinga ecosystem.

Resumo em Inglês:

The cladoceran Kurzia polyspina Hudec, 2000 (Anomopoda, Chydoridae) was found associated with Eichhornia Kunth, 1843 (Pontederiaceae) roots in Paranoá Lake, Brasília. It represents the first record of this species in Brazil and in the Southern Hemisphere. Comments on Kurzia Dybowski & Grochowski, 1894 South American records are included.