Occurrence and variability of Panstrongylus lutzi in the State of Ceará, Brazil

Revista da Sociedade Brasileira de Medicina Tropical

Maria Hismênia H.m. Garcia²  Lindemberg Souza¹  Rita De Cássia M. De Souza¹  Alexandre S. Paula¹  Érika C. Borges¹  Silvia E. Barbosa¹  Christopher John Schoffield¹  Liléia Diotaiuti¹ 

[1] ,Fundação Nacional de SaúdeFortaleza CE

关键词: Panstrongylus lutzi;    Triatominae;    Chagas' disease;    Morphometry;    Variability;    Panstrongylus lutzi;    Triatominae;    Doença de Chagas;    Morfometria;    Variabilidade;   

DOI  :  10.1590/S0037-86822005000500010

来源: SciELO

【 摘 要 】

Panstrongylus lutzi is generally restricted to the "caatinga" areas of north-eastern Brazil. Adult insects are frequently found in local houses, but colonies have not previously been registered in the statistics of the Control Programme of Chagas Disease. In Ceará State, our study revealed increasing occurrence of this species, usually with high infection rates for Trypanosoma cruzi, and always represented by adults that invaded the artificial environment. We also found nymphs in the peridomicile and inside the houses. In silvatic habitats we collected two adult females from hollow tree trunks, which may represent an alternative natural ecotope for the species in this state. Panstrongylus lutzi entomological collections from Sobral and Crateús, studied by morphology and morphometrics, showed great variability; those from Crateús were larger smaller and paler in colour, with individuals showing genital features consistent with those described for Panstrongylus lutzi or Panstrongylus sherlocki, whereas those from Sobral were darker and with genitalia compatible with P. sherlocki, nevertheless, all were considered to be Panstrongylus lutzi.

【 授权许可】

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