1000 resultados para Acrocirrus sp.
Resumo:
One hundred and fourteen specimens of eleven different species of freshwater fishes from the Guaiba estuary, were examined for digenetic flukes. Saccocoelioides godoyi n.sp. proposed herein, is closest to S. magniovatus and to S. szidati; S. magniovatus is much smaller with comparably larger eggs and S. szidati has larger hermaphroditic sac and considerably larger testis. Creptotrema creptotrema is referred to a new host; Acanthostomum gnerii, Crepidostomum platense, Eocreadium intermedium (immature form), Parspina argentinensis and Zonocotyle bicaecata are reported. This paper confirms the similatary between the parasites of freshwater fishes from Argentina and Brazil. Measurements and original figures of all species are given.
Resumo:
Psychodopygus yucumensis n.sp., a new species of Phlebotomine sandfly belonging in genus Psychodopygus mang., is described from specimens collected from human bait, in Beni dept., Bolivia. The male is characteristic of the series panamensis, but the female, closely related to P. carrerai carrerai, can be confused with this species ("cryptic species"). Isozyme characterization can determine any specimen of either species, while morphometric analysis shows statistical differences between the two species. P. yucumensis is strongly anthropophilic. A Leishmania braziliensis braziliensis stock was isolated from this new species, indicating that it is one of the vectors of mucocutaneous Leishmaniasis in the lowland subandean area.
Resumo:
Gorgorhynchus trachinotus recovered from the intestine of trachinotus goodei Jordan & Evermann, 1896 is proposed as a new species and three new host records are reported for Dollfusentis chandleri Golvan, 1969.
Resumo:
Uma nova espécie de ácaro, Dermatophagoides deanei, foi encontrada em amostras de poeira omiciliar de várias capitais do Brasil.
Resumo:
Estudando o material de Helcocyrtomyia depositado na coleção de flebotomÃneos do Centro de Pesquisas René rachou, os autores verificaram a ocorrência de uma nova espécie, Lutzomyia pusilla sp. n., que até o momento era confundida com lutzomyia peresi (Mangabeira, 1942).
Resumo:
Descreve-se um novo mixosporÃdeo - Henneguya intracornea n.sp - parasita da córnea de peixe de água doce, Astyanax scabripinnis (Jenyns, 1842) da região de Campinas, Sp. As sucessivas fases evolutivas são descritas. Assinalam-se os caracteres morfológicos e biológicos que distinguem H. intracornea n.sp. das demais espécies do gênero. Destaca-se o parasitismo exclusivo da córnea do peixe parasitado e suas caracterÃsticas morfológicas, com ênfase para sua tÃpica cápsula polar, com a forma de garrafa e para os dois processos caudais, desiguais no comprimento.
Resumo:
Les auteurs décrivent le mâle et la femelle de Lutzomyia (Trichophoromyia) beniensis n.sp., capturés dans le galerie forestiére du Rio Beni (Département du Beni). L'espèce n'est pas anthropophile mais aurait des appétences omithophiles.
Resumo:
Os autores descrevem uma nova espécie, Lutzomyia capixaba sp.n., pertencente ao grupo dos flebotomÃneos de cinco espinhos do subgênero Helcocyrtomyia Barreto, 1962.
Resumo:
Les auteurs décrivent le mâle et la femelle d'une nouvelle espèce de phlébotome Lutzomyia brisolai n.sp., anthropophile, rencontrée dans plusieurs stations du piémont andin. Cette espèce, difficile à classer, présente des caractères l'apparentant à L. oliveirai et L. minasensis mais aussi aux espèces du sous-genre Nyssomyia.
Resumo:
Es dada la descripción del macho y de la hembra de una nueva espécie de flebotomÃneo recolectado en tronco de árboles en el Parque Nacional de Yacambú, Estado Lara, Venezuela. La nueva espécie pertenece al subgénero Helcocyrtomyia, Barrto, 1962 o al grupo vexator, série peruensis de Theodor (1965) y de Young & Fairchild (1974). El macho se identifica por la presséncia de 5 espinos en el dististilo y por el mechón de cerdas largas en el basistilo, implantadas en tubérculos gruesos y queratinizados. La hembra a la vez presenta armadura dl cibário con 4 dientes largos y una espermateca segmentada semejante a las de otras espécies de la série peruensis.
Resumo:
The commonest sand fly in limestone caves in Belize, Central America, previously, referred to as Lutzomyia beltrani (Belize form), is described as Lutzomyia (Coromyia) disneyi n. sp.
Resumo:
Les auteurs décrivent le mâle et la femelle d'une nouvelle espèce de phlébotome non anthropophile, appartenant au sous-genre Trichopygomyia Barreto, 1962 Lutzomyia gantieri n.sp., très proche de L. elegans Martins, Llanos et Silva 1976.
Resumo:
A new species of Urocleidoides, U. astyanacis (Monogenea, Ancyrocephalinae) is described from the "lambari" Astyanax scabripinnis (Jenyns, 1842) and A. fasciatus (Cuvier, 1819). Hosts were collected in Atibaia and Jaguari Rivers near Campinas, São Paulo State, Brazil.
Resumo:
Procamallanus petterae n. sp. from Plecostomus albopunctarus and Spirocamallanus pintoi n. sp. from Corydoras paleatus are described. procamallanus petterae n. sp. differs from all other species of the genus by having a buccal capsule without spiral bands, with five teeth-like structures on its base and four plate-like structures near the anterior margin; length ratio of oesophagus muscular/glandular 1:1.4; spicules short, 21µ m and 16µ m long and tails ending abruptly in a sharp point, in both sexes. Spirocamallanus pintoi n. sp. is characterized by having 6 to 8 spiral thickenings in the buccal capsule of male and 9 to 10 in female, occupying 2/3 of the length of the capsule; length of glandular oesophagus more than twice the muscular; spicules short, the right 94µ m and the left 82µ m long.