| comparative studies of populations of lutzomyia umbratilis (diptera: psychodidae) in brazil and venezuela. | we analyzed 64 quantitative and qualitative morphological characters in different populations of lutzomyia (nyssomyia) umbratilis ward & fraiha from venezuela (gran sabana, bolívar/bo) and brazil (serra do navio, amapá/ap manaus, amazonas/am, monte dourado, pará/ pa, and peixoto de azevedo, mato grosso/mt). based on an analysis of qualitative characters, no differences were observed that could distinguish between the populations. parametric tests were used to verify differences between sample me ... | 2002 | 12144289 |