Aldana E, Lizano E, Rodríguez M, Valderrama A
Laboratorio de Entomología Herman Lent Dpto. Biología Fac. Ciencias, La Hechicera, Mérida, Venezuela.
Rev Biol Trop. 2001 Jun;49(2):693-5.
Feeding and defecation behavior of Rhodnius prolixus Stal, 1859, R. robustus Larrousse, 1927, R. neivai Lent, 1953 and R. pictipes Stal, 1872, artificially fed on human blood, were studied under laboratory conditions. In all species, first instar nymphs did not defecate in the first 30 minutes after feeding. R. pictipes did not accept artificial feeding but fed directly on humans. Nymph and adult R. prolixus had a higher defecation index (DI) than other species; third instar nymphs had the highest DI = 1.62. In all instars, most individuals accepted the food in 3 Pounds minutes and finished feeding in less than 15 minutes.
在实验室条件下，研究了1859年的红带锥蝽（Rhodnius prolixus Stal）、1927年的粗壮锥蝽（R. robustus Larrousse）、1953年的内氏锥蝽（R. neivai Lent）和1872年的花斑锥蝽（R. pictipes Stal）以人血为食时的取食和排便行为。在所有物种中，一龄若虫在进食后的前30分钟内不排便。花斑锥蝽不接受人工喂食，而是直接吸食人血。红带锥蝽的若虫和成虫的排便指数（DI）高于其他物种；三龄若虫的排便指数最高，为1.62。在所有龄期，大多数个体在3分钟内接受食物，并在不到15分钟内完成进食。
