Field Observations on the Gonotrophic Cycle of Anopheles Darlingi (Diptera: Culicidae)1
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TL;DR
Three field investigations on the duration of the gonotrophic cycle of Anopheles darlingi demonstrated that oogenesis in An.
Abstract
Three field investigations on the duration of the gonotrophic cycle of Anopheles darlingi (Diptera: Culicidae) were conducted along the Ituxi River, Amazonas, Brazil, in February 1979 and March 1980. During the 1st investigation wild-caught, blood-engorged females were held for variable time periods and evaluated against Sella's stages of blood digestion and ovarian development. The 2nd investigation was similar except that Christophers' stages of follicular development also were evaluated. A 3rd investigation consisted of collecting, marking, and releasing blood-engorged specimens to document the elapsed time before they again appeared in human bait collections. With these investigations we demonstrated that (1) oogenesis in An. darlingi is completed about 48 h after blood feeding, (2) Sella's scheme could be usefully employed with specimens of An. darlingi to assess elapsed time after taking a blood meal, and (3) 42% (5 of 12) of the marked females sought another blood meal the 2nd night following a blood meal.