Abstract
Studies on vectors of Trypanosoma cruzi Chagas were conducted during 1982-85 as part of an investigation on the epidemiological status of American Trypanosomiasis in Trinidad, West Indies. A total of 148 reduviid bugs were collected from caves, armadillo nests and at light traps, comprising four sylvatic species and totalling 120 Panstrongylus geniculatus (Latreille), two P. rufotuberculatus (Champion), twelve Rhodnius pictipes Stal and fourteen Eratyrus mucronatus Stal. A significantly higher level of infection with T. cruzi was recorded for P. geniculatus (42.5%) compared to R. pictipes (8.3%). The other two bug species were not found to be infected. P. geniculatus seems to be the most important vector in the sylvatic cycle of transmission of T. cruzi in Trinidad.
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