Tizu T, Schumaker S, Barros D M
Departamento de Parasitologia, Universidade de São Paulo, Brasil.
J Med Entomol. 1995 May;32(3):249-54. doi: 10.1093/jmedent/32.3.249.
Specimens of Ornithodoros (Alectorobius) talaje (Guérin-Mèneville) collected in the state of Minas Gerais, Brazil, were used to start a laboratory colony. Larvae were fed on chicks and nymphs and adults were fed on adult chickens. From the specimens that emerged after the third molt, 97.6% were nymphs and 2.4% were males. After the fourth molt, 41.6% were nymphs, 37.6% were males, and 20.8% were females. After the fifth molt, 24% were males and 60% were females; the remainder were nymphs. The number of eggs per female per gonotrophic cycle and the mean duration of preoviposition, oviposition, and incubation periods were recorded. At the first gonotrophic cycle, duration of preoviposition period was longer and the number of eggs was smaller than any other studied gonotrophic cycle. The life cycle was completed within 849 d (maximum). The O. (A.) talaje first-instar nymphal population failed to molt without having a blood meal, which differs from other Alectorobius species. Parthenogenesis was not observed. Larval morphology was studied by optical microscopy. Unengorged specimens were larger, with smaller dorsal plate and fewer dorsal setae than those previously described.
从巴西米纳斯吉拉斯州采集的达氏钝缘蜱（Ornithodoros (Alectorobius) talaje (Guérin-Mèneville)）标本用于建立实验室种群。幼虫以雏鸡为食，若虫和成虫以成年鸡为食。第三次蜕皮后羽化出的标本中，97.6%为若虫，2.4%为雄性。第四次蜕皮后，41.6%为若虫，37.6%为雄性，20.8%为雌性。第五次蜕皮后，24%为雄性，60%为雌性；其余为若虫。记录了每个雌蜱每个生殖营养周期的产卵数以及产卵前期、产卵期和孵化期的平均持续时间。在第一个生殖营养周期，产卵前期持续时间较长，产卵数比其他研究的生殖营养周期少。生命周期在849天内（最长）完成。达氏钝缘蜱一龄若虫种群若不吸食血液则无法蜕皮，这与其他钝缘蜱属物种不同。未观察到孤雌生殖现象。通过光学显微镜研究了幼虫形态。未饱血的标本比先前描述的更大，背板更小，背毛更少。
