Arley Faria José de Oliveira1,2*, Nair Otaviano Aguiar1 & Felipe Arley Costa Pessoa2
1 Programa de Pós-Graduação em Diversidade Biológica – ICB, Universidade Federal do Amazonas, Manaus, AM, Brazil.
1 Instituto de Biologia – ICB, Universidade Federal do Amazonas, Manaus, AM, Brazil.
2 Laboratório de Ecologia de Doenças Transmissíveis na Amazônia – Centro de Pesquisas Leônidas e Maria Deane, Fundação Oswaldo Cruz, Manaus, AM, Brazil.
*Autor de correspondencia: afariajosedeoliveira@gmail.com
SUMMARY
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.
Key words: leishmaniasis, morphological abnormalities, sandflies, taxonomy
Un híbrido probable en una hembra Psychodopygus sp. (Diptera, Psychodidae, Phlebotominae) en el estado de Amazonas, Brasil
]]> RESUMENLos 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.
Palabras clave: leishmaniosis, anomalías morfológicas, flebótomos, taxonomía
Recibido el 20/01/2016 Aceptado el 10/04/2016
Pinto et al., 2010. Neotrop. Entomol. 39: 732-735).Abnormalities may cause insects to be misidentified, and correct identification is important because some species are vectors of leishmaniasis.
An abnormal female sand fly was found during an entomological survey conducted in an Amazonian forest reserve that is part of the UFAM Experimental Farm, Federal University of Amazonas, on Km 38 of BR – 174, between Manaus, Amazonas and Boa Vista, Roraima, Brazil (2º 38’ 59.46" S, 60º 3’ 16.47" W). The specimen was slide-mounted, photographed and drawn.
The specimen exhibits a cibarium with three rows of irregular horizontal teeth (Figs. 1 and 2), and two pairs of spermathecae. One pair of spermatheca epossesses two complete bodies,with individual ducts and a visible common duct ending in the genital furca.Theother pairof spermathecae possesses one complete body and one body without the head, andonlythe distal third of the common and individual ducts is visible (Figs. 3-5).
Normally,female sandflies possess a single pair of spermathecae(McAlpine, 1981. Canada: Res. Branch Agric. 1: 9-63). Ogusuku& Pérez, 1994 (Acta Amazon. 24: 317-320) found a supernumerary spermathecae in a specimen of Psychodopygus carrerai Barretto, and the absence of spermathecae in a specimen of P. amazonensis Root. The abnormal female described here exhibits anomalies in both the cibarium and the spermathecae. According to the keys proposed by Young & Duncan, 1994 (Mem. Am. Entomol. Inst. 54: 1-881), the arrangement of cibarial teeth is similar to that of P. arthuri Fonseca, 1936; additionally,the strong pigmentation of the thorax and pleura, and the characteristics of one pair
]]> of spermathecae could cause this specimen to be misidentified as P. ayrozai Barretto & Coutinho. This may be the first record of combined cibarium and spermathecae teratologies present in a single female sand fly. Due to these abnormalities, the specimen could not be identified at species level.ACKNOWLEDGEMENTS
To by technical illustrator Mr. Artêmio Coelho da Silva and Raúl Bismarck Pinedo Garcia Graduate in Biological Sciencesthe translation of the abstract in Spanish.
Conflict of interest
The authors report no conflicts of interest with this study.
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