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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 105, No. 3, 2010, pp. 286-292
Bioline Code: oc10048
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 105, No. 3, 2010, pp. 286-292

 en Characterization of the external female genitalia of six species of Triatominae check for this species in other resources (Hemiptera: Reduviidade) by scanning electron microscopy
da Rosa, João Aristeu; Mendonça, Vagner José; Rocha, Cláudia Solano; Gardim, Sueli & Cilense, Mario

Abstract

By macroscopic and microscopic dorsal side observation, it was noted that the IX and X segments of two species each of Panstrongylus check for this species in other resources and Triatoma check for this species in other resources terminate in an elongated way, whereas they terminate abruptly in the two species of Rhodnius check for this species in other resources . Scanning observation of the dorsal, ventral, lateral and posterior sides of the female genitalia of Panstrongylus herreri check for this species in other resources , Panstrongylus megistus check for this species in other resources , Rhodnius colombiensis check for this species in other resources , Rhodnius prolixus check for this species in other resources , Triatoma infestans check for this species in other resources and Triatoma vitticeps check for this species in other resources revealed that these six species are generally and specifically distinguished based on these elements. We describe several components that distinguish P. herreri from P. megistus: four on the dorsal side: the VII, VIII, IX and X segments, on the ventral view, three: VII sternite, VIII gonocoxite and VIII gonapophyse, on the lateral view one character, VIII gonocoxite and on the posterior view three characters: VIII and IX gonocoxite and XI gonopophyse. Comparing R. colombiensis and R. prolixus, there were three distinct characters on the dorsal side: the VII, VIII and X segments, on the ventral view three characters: the IX and X segments and VIII gonocoxite and on the posterior view four characters: the VIII, IX, X segments and VIII gonapophyse that distinguish the two species. T. infestans and T. vitticeps have four different characters on the dorsal side: the VII, VIII, IX and X segments, on the ventral view four characters: the VII and X segments, VIII gonocoxite and VIII gonapophyse, on the lateral view two characters, IX and X segments and on the posterior view four characters: the IX and X segments, VIII gonocoxite and VIII gonapophyse that distinguish the two species. Examination of the external female genitalia of six triatomine species by scanning suggests that these components are useful for taxonomical studies.

Keywords
Triatominae, taxonomy, external female genitalia

 
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