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Thaís Peres Câmara,Letícia Pinho Gomes,Rosaline Rocha Lunardi,Paula Cristina de Souza Souto,Adriana Degrossoli,Wagner Welber Arrais-Silva 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.4
The bloodsucking bug Triatoma williami is the main vector of Trypanosoma cruzi, the etiological agent of Chagas disease in State of Mato Grosso, Brazil. It occurs in sylvatic areas of Brazilian savanna with often records of adult specimens in domestic and peridomestic habitats. We describe, for the first time, the reproductive parameters of T. williami females such as fecundity, fertility and lifespan. We also evaluate whether mating and nourishment status of females of T. williami may modulate the reproductive parameters. As a result, the presence of male corroborated to increase female lifespan from 5.14 ± 1,77 to 34.57 ± 10,86 weeks. The oviposition rate in mated female increased 275% when we compared to the fecundity values in unmated females. Finally, our results indicate that mating is crucial to improve lifespan and fecundity of T. williami females. This characteristic may be related to the environmental conditions under T. williami develops, because the sylvatic ecotopes form small scattered colonies with infrequent access to blood sources.