Abstract
In 2 forested areas near Belém (Para State, Brazil), 2 Haemagogus and 6 Sabethes species were marked released and recaptured in May 1989 and in April 1993. The recapture rates were high, 4.9 and 13.1% for Haemagogus and Sabethes spp., respectively. For Haemagogus janthinomys Dyar, females were recaptured until 27 d after release. The duration of the gonotrophic cycle was between 5.0 and 9.5 d and the survival rate was 0.90-0.92. Haemagogus leucocelaenus (Dyar & Shannon) was recaptured once, 21 d after release. Twelve Sabethes chloropterus (Von Humboldt) were recaptured, with a peak at 15-18 d; 1 female was recaptured at 44 d, indicating extended survival. Seven Sabethes amazonicus Gordon & Evans and 7 Sabethes cyaneus (F.) were recaptured, mostly at 14-39 d. These results indicate that Haemagogus and Sabethes spp. have a gonotrophic cycle in nature longer than inferred from laboratory studies, and that cycle length varies seasonally. The capacity of these species to sustain epizootics or epidemics of arboviruses may depend on local weather, with risk greatest at the end of the rainy season.
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