RCAAP Repository

Bithoracochaeta maricaensis, sp.n. from Barra de Maricá, Rio de Janeiro, Brazil, is descrihed and illuslrated.

The resulls of the protargol's technique and Feulgen's reactions on ciliates of the genus Entodinium Stetn. 1859, Diplodinium Schuberg. 1888. Eodinium Kofoid & MacLennan. 1932, Eudiplodinium Dogiel. 1927 and Ostracodinium Dogiel. 1927 are presented. The ciliates were obtained from samples of bovine's ruminal content.

Two Malaise traps (TOWNES 1972 model) were installed on an island (the "Ilha do Mel") in the Bay of Paranaguá, from September, 1988 to August, 1989. at two sites denominated "Fortaleza" and "Praia Grande", for collection of insects. Apart from collection of insects (Fortaleza: 62.924 individuals; Praia Grande: 38.868 individuais), graphical analysis were limited to those Orders wich occurred concomitantly at the two collection points in ali months: Collembola. Hemiptera. Homoptera. Coleoptera. Lepidoptera. Diptera and Hymenoptera. It was concluded that the Malaise trap is selective for Diptera. Hymenoptera and Lepidoptera. and proved to be efficient in measuring abundance, in obtaining information regarding the seasonal variation of insects, and in comparing the entomofauna of different geographical localities.

Two Malaise traps (TOWNES' 1972 model) were installed on an island (lhe "Ilha do Mel") in lhe Bay of Paranaguá, from September, 1988 to August. 1989. at two sites denominated "Fortaleza" and "Praia Grande", for colleetion of insects. At "Fortaleza". 1,715 individuais of Tabanidae were captured, representing 3.20% of all Diptera captured in this site, while at "Praia Grande" 1,420 individuais of the same family were captured, representing 5,06% of ali Diptera captured there. In "Fortaleza", Tabanidae is represented for 10 species, while in "Praia Grande" it is represented for nine species. Dichelacera alcicomis (Wiedemann. 1828) was the most abundant species at two sites, representing 87,52% and 66,69 % of all Tabanidae captured at "Fortaleza" and "Praia Grande", respectively. The grealest number of individuais occurred in November, the month with the lowest relative humidity associated to small pluviometric precipitation, just after a month with high relative humidity associated to a high pluviometric precipilation.

No summary/description provided

The female of Asaphobelis physonychus Simon, 1902 is described for the firstl time. Some new comments about the male are provided and the palpus is illustrated.

Radiodiscus vazi. sp.n. is described. Synonymizations of Zichogyra cleliae Weyrauch, 1965 under Radiodiscus pilsbryi Scott, 1957 and Radiodiscus patagonicus (Suter, 1900), comb.n. - non Radiodiscus patagonicus Pilsbry, 1911 - and Radiodiscus iheringi (Ancey, 1S99), comb.n. - non Radiodiscus jheringi (Thiele, 1927) - are proposed with Radiodiscus bolachaensis. nom.n.

Tylanthidium, gen.n. is proposed to a new species from the north brazilian state of Amazonas - Tylanlhidium tuberigaster, sp.n. - characterized by the absence of arolia and of interalveolar carinas, the peculiar scutellum almost triangular and by the genal preoccipital carinae; the males with the apical border of the mandibles deeple sinuate and the distai tergum densely hairy bellow. Michanthidium nom.n. is given to Gnathanlhidium Urban,. 1992 (non Gnathanthidium Pasteels, 1969).

The aim of lhe presenl work is to descrihe the biological cycle of the Apiomenis lanipes (Fabricius, 1803) (Hemiptera, Reduviidae) on lahoralory conditions. Adults of Drosophila sp. (Diptera, Drosophilidae) and Ceralitis capitula (Wiedemann, 1824) (Diptera. Tephritidae) was offered for hug feeding (nymphs and adults). The developmenlal of the entire cycle (egg to adult) was 288.26 days and 294.85 days for males and females, respectively. The duration of egg stage and nymphal stage was 23.5 days and 269.02 days, respectively.

This species from the Mata Atlântica resembles Melipona lateralis Erichson, 1848 and M. seminigra Friese, 1903 from the Amazonian Region. It can be easily distinguished from the first and its nearest relalive, M. scutellarís Latreille, 1811 by having a more shining mesoscutum and from the second by the yellow facial markings.

Rhynosielis, gen.n. is proposed as new genus for Anthidium multiplicaium Smith, 1879. It has in commom wilh Hoplostelis a strong basal tooth on upper border of mandibles. Main differences with Hoplostelis are: mandibular shape, configuration of mandibular teeth on apical border, a rounded tubercule on upper clypear third, mesoscutum posteriorly bigibbous, scutellum transverse-bigibbous, preepisternal carina laminate and almost complete, basal portion of propodeum without foveae and a median carina on last three terga.

The larvae of Lestes bipupillalus Calvert, 1909 and Lestes tricolor Erichson. 184S are described and illustrated based on specimens collecled in têmporary habitais near the city of Rio de Janeiro. Additional information are given on the morfology of the larva of Lestes pictus Hagen, 1862 and a key for the identification of the brazilian speeies of Lestes whose larvae are known. is presented.

Coremia (Dirocoremia), subgen.n.. is proposed for Coremia ingae, sp.n.. from Paraná. Brazil (type species) Coremia bruchi Gounelle, 1905 and Coremia simpiicipes Gounelle, 1911.

The time of full stomach repletion and fat condition was determined through an analysis of the average stomach repletion index, condition faclor and relative frequency of repletion for different periods of the year. Condition factor was influenced by weight gain in the stomaches, main from April to June.

This species showed feeding activily ali year long. Although zooplancton, protozooplancton and other organisms have been found in the stomaches, this species can be considered, broadly speaking, herbivorous since a great amount of seaweed was found in its diet. Fulness of the stomachs was not associated with sex difference. Full stomachs were found throughout the period. Variations according to the estimated periods were not found.

Described herein is a case of alhinism in lhe Peccary Tayassu tajacu Linnaeus. 1758 (Artiodaclyla. Tayassuidae). which was observed in Colônia Castelhanos. São José dos Pinhais. Paraná, in lhe Southern Bra/il. The specimen was caplured when very young. The normal peccary (Tayassu tajacu) is a dark-gray animal wilh a while hand across the ehest from shoulder Io shoulder. This animal have while skin. hlued eyes bul has pigmented feet.

Are describcd a new genus, and a new species, including characteres of the wing venation, moulh pieces, proendosternite, metendosternite and ovipositor. This species has a restrict geographical distribution in Espírito Santo and Bahia - Brazil.

A new technique to reliably estimate true tadpole abundance in small ephemeral forest ponds based on a sample taken from a bottom net is presented. The bottom net is placed in the pond before it fills with water. At given intervals the bottom net is lifted through the water column and all tadpoles can be counted. Based on a series of calibrations, the technique showed significant correlations between estimated abundance of Osteocephalus taurinus Steindachner, 1862, Colostelhus marchesianus Melin, 1941, Phyllomedusa tomoptema Cope, 1868, and aeshnid larvae, and true abundances based on total counts.

This isthe fifth fascicle of the series and deals with the polychaete families Psionidae, Chrysoptelidae, Aniphinomidae e Euphrosinidae whieh are represented in the Brazilian coast respectively hy 1,5, 9 and 2 species. The speciniens of ali the species examined are deposited in the Collection of the Departamento de Zoologia, Instituto de Biologia of the Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo.

Ectaga garcia, sp.n., related to E. promeces Walsingham, 1912 is described. Larvae were reared on Lantana camara, L. griesebachiana and L. montevidensis (Verbenaceae) in Argentina and Brazil.