Diotaiuti L, Penido C M, Pires H H, Dias J C
Centro de Pesquisas René Rachou, Fundação Oswaldo Cruz, Belo Horizonte, MG.
Rev Soc Bras Med Trop. 1995 Jul-Sep;28(3):195-8. doi: 10.1590/s0037-86821995000300005.
Today, Triatoma sordida is the most frequently captured triatomine in Brazil. For a better understanding of its vectorial potential, its feeding dynamics and dejections behaviour were studied in comparison with Triatoma infestans and P. megistus. The proportion of T. sordida and T. infestans that blood fed on anaesthetized rats did not differ significantly. There was no significant difference in the time elapse between release of the bugs and the initiation of blood feeding. The mean time between completion of a blood meal and the first dejection was significantly lower in T. infestans than in T. sordida. The numbers of insects that defecated during the blood meal or immediately afterwards was similar for both species. Approximately 80 specimens of each of T. sordida, T. infestans and Panstrongylus megistus were offered daily blood meals for 30 minutes, over a period of 30 days. T. sordida bit more frequently than did P. megistus and T. infestans. These data could indicate that T. sordida may not be completely adapted to its host and might have difficulty in complete its blood meal.
如今，污色锥蝽是巴西捕获频率最高的锥蝽。为了更好地了解其传播潜力，将其取食动态和排粪行为与大劣按蚊和长红锥蝽进行了比较研究。以麻醉大鼠为血源时，污色锥蝽和长红锥蝽的吸血比例无显著差异。从释放臭虫到开始吸血的时间间隔没有显著差异。长红锥蝽完成一次血餐到首次排粪的平均时间显著低于污色锥蝽。两个物种在血餐期间或之后立即排粪的昆虫数量相似。在30天的时间里，每天为大约80只污色锥蝽、长红锥蝽和大臭蝽提供30分钟的血餐。污色锥蝽比大臭蝽和长红锥蝽叮咬更频繁。这些数据可能表明，污色锥蝽可能没有完全适应其宿主，并且在完成血餐时可能存在困难。
