Studies on the resting behaviour and host choice of Anopheles gambiae and An. arabiensis from Muleba, Tanzania

Medical and Veterinary Entomology
J D CharlwoodC LeClair

Abstract

The relative efficacy of a mechanical (Prokopack) collection method vs. manual aspiration in the collection of resting mosquitoes was evaluated in northern Tanzania before and after an intervention using indoor residual spraying and longlasting insecticide-treated nets. In smoke-free houses mosquitoes were collected from the roof and walls, but in smoky houses mosquitoes were found predominantly on the walls. Anopheles gambiae (Diptera: Culicidae) constituted 97.7% of the 312 An. gambiae complex specimens identified before but only 19.3% of the 183 identified after the intervention. A single sampling with the Prokopack collected a third of the available insects. Anopheles gambiae completed its gonotrophic development indoors, whereas Anopheles arabiensis did so outdoors. In both species gonotrophic development took 2 days. Most unfed resting An. arabiensis collected outdoors were virgins, whereas the majority of engorged insects were parous (with well-contracted sacs). Daily survival was estimated to be 80.0%. Only 9.4% of the engorged An. arabiensis collected outdoors and 47.1% of those collected indoors had fed on humans. Using the Prokopack sampler is more efficient than manual methods for the collection of resting mosquitoe...Continue Reading

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Citations

May 23, 2019·Parasites & Vectors·Edgar Koyoc-CardeñaGonzalo Vazquez-Prokopec
Jul 30, 2021·PeerJ·Jacques D CharlwoodAyubo Kampango
Jul 30, 2021·Transactions of the Royal Society of Tropical Medicine and Hygiene·Christian KositzMichael Marks

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