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1.
Bol. malariol. salud ambient ; 56(1): 68-71, jul. 2016. ilus, tab
Article in English | LILACS-Express | LILACS | ID: biblio-1038875

ABSTRACT

Phlebotomine sand flies are responsible for the transmission of the etiological agents of several diseases, including protozoan parasites that cause leishmaniases. In the Lutzomyia França genus, the females of some species are morphologically similar, and the morphological characters normally used to identify them are unreliable. The aim of this study was to distinguish between females of cryptic Lutzomyia França species from the subgenus Psathyromyia Barretto by analyzing the armature in the genital atrium (AGA). The species studied were Lutzomyia dendrophyla Mangabeira, L. scaffi Damasceno & Arouck and L. shannoni sensulato Dyar. Lab-reared females were dissected to isolate the genital atrium and spermathecae. The AGA of each species was then photographed, and the arrangement of spines described. We conclude that the AGA can be a useful tool for distinguishing between female cryptic species of the subgenus Psathyromyia.


Los flebotomíneos (Diptera, Psychodidae, Phlebotominae) son responsables por la transmisión de agentes etiológicos de varias enfermedades, incluyendo protozoarios parásitos que causan las leishmaniosis. En el género Lutzomyia França, las hembras de algunas especies tienen morfologías semejantes y los carácteres morfológicos utilizados para identificarlas no son confiables. El objetivo de este estudio fué distinguir las hembras de especies crípticas del subgénero Psathyromyia Barretto analizando la armadura del área genital (AGA). Las especies estudiadas fueron Lutzomyia dendrophyla Mangabeira-Filho, Lutzomyia scaffi Damansceno & Arouck y Lutzomyia shannoni sensulato Dyar. Las hembras criadas en laboratorio fueron diseccionadas para aislar la genitalia y la espermateca, las armaduras fueron fotografiadas y la distribución de las espinas fue descrita. Concluímos que la AGA puede ser una herramienta útil para distinguir las hembras crípticas del subgénero Psathyromyia.

2.
Bol. malariol. salud ambient ; 56(1): 72-74, jul. 2016. ilus, tab
Article in English | LILACS-Express | LILACS | ID: biblio-1038876

ABSTRACT

Phlebotomine sand flies are vectors of several important etiological agents. Sand fly cibaria and genitalia exhibit morphological characters that are essential for species identification. A morphologically anomalous female sand fly of the subgenus Psychodopygus Mangabeira was found in a faunistic survey of a forested area near Manaus, Amazonas State, Brazil. This specimen possesses two pairs of spermathecae and a cibarium with supernumerary rows of teeth. Most morphological anomalies in sand flies occur in the number and arrangement of spines in structures associated with the male genitalia. In females, the number of cibarial teeth is the most common form of anomaly. The specimen described here constitutes a rare anomalous record.


Los flebótomos son importantes vectores de varios agentes etiológicos. En flebótomos, los caracteres morfológicos del cibario y la genitália, son esenciales para la correcta identificación de las especies. Una hembra morfológicamente anómala del subgénero Psychodopygus Mangabeira, fue encontrada en un levantamiento faunístico en un área de bosque cerca de Manaus, estado de Amazonas, Brasil. Este espécime tiene dos pares de espermatecas y un cibario como hileras de dientes supranumerários. La mayoria de las anomalías morfológicas en los flebótomos ocurre en el número y disposición de las espinas en las estruturas de la genitália masculina. En las hembras, el número de dientes del cibario es la forma mas común de anomalía. El espécimen aqui descrito constituye un raro registro de anomalía.

3.
Acta amaz ; 211991.
Article in Portuguese | LILACS-Express | LILACS, VETINDEX | ID: biblio-1454363

ABSTRACT

During two trips to investigate the, Passalidae (Coleoptera)fauna of) Maracá Island, on the. Uraricoera riven., Roraima, Brazil, five species were faund. During the first trip, which took place, in the rainy season (May 3-13, 1987), faun. species were faund: Passalus glaberrimusEschsch., 1819; Passalus Interruptus(Lin., 1758); Passalus interstitialisEschsch., 1819 and Verres furcilabris[Eschsch., 1819). Paxillussp., as well as the. faur, species, were. faund on the second trip, during the dry season (november 23 - 30, 1987). Bionomical data collected on these species are presented and discussed.


Foram realizados duas excursões à Ilha de Maracá, Estação Ecológica da Secretaria Especial do Meio Ambiemte, em Roraima, Brasil, uma durante a estação chuvosa, no periodo de 03 a 13.v.1987 e a outra na estação seca de 23 a 30.xi.1987. Na primeira. foram colecionadas quatro espécies de Passalideoes (Coleoptera): PassalusglaberrimusEschsch., 1829; Passalus interruptus(Lin., 1758); Passalus interstitialisEschsch., 1829 e Verres furcilabris (Eschsch., 1829). Na segunda oportunidade, além das espécies, encontradas na primeira, foi colecionada mais uma, Paxillussp. Dados sobre a bionomia destas espéci-es, obtidos, durante os dois colecionamentos, são fornecidos e discutidos.

4.
Acta amaz ; 211991.
Article in Portuguese | LILACS-Express | LILACS, VETINDEX | ID: biblio-1454385

ABSTRACT

During a trip to Maracã island, at the Uraricoera river, Roraima, Brazil, between March 16 and 22, 1988, six adults of the Cerabycid beetle Stenodontes spinibarbis(Lin., 1758) were captured, atracted by a mercury vapor/tungsten light bait. Four of these beetles carried three different species of Pseudoscorpions: Lechytia chthoniiformis (Balzan, 1890), Neocheiridium corticum (Balzan, 1890) and Lustrochernes intermedius (Balzan, 1891). The two former species are listed as new to Amazonian region and are found to have foretic behavior for the first time. The latter one, already know from Amazonian region, was never found in foresie. Data of these Pesudoscorions are given, and synonymic citations of each species are listed. Lechytia chthoniiformis is descrived now from male and female separately.


Em excursão à ilha de Maracã, Estação Ecológica da Secretaria Especial do Meio Ambiente, Roraima, Brasil, de 16 a 22/3/1988, foram coletados com isca luminosa (luz mista de mercúrio), seis exemplares de Stenodontes spinibarbis (Lin., 1758). Quatro desses coléopteros carregavam Pseudoscorpiões de três espécies: Lechutia chthoniiformis (Balzan, 1980), Neocheiridium carticum (Balzan,1890) e Lustrochernes intermedius (Balzan, 1891). As duas primeiras espécies são assinaladas agora na Amazônia e pela primeira vez em forésia. A última, já registrada para a região Amazônica, ainda não tinha sido encontrada em forésia. Fornecem-se dados sobre estes exemplares e redescreve-se Lechytia chthoniiformis.

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