实验室条件下长角血蜱的生物学特性研究

实验室条件[(27±1)℃；75%RH；6L：18D]下，长角血蜱完成其生活史需135.8d：卵的孵化期为38.5d：幼虫吸血前期、吸血期和蜕皮前期分别为5.3d，3.8d和13.9d；若虫吸血前期、吸血期和蜕皮前期分别为7.2d，5.4d和16.9d；成虫吸血前期、吸血期、产卵前期和产卵期分别为7.6d，9.4d，7.8d和20.0d。雌虫饱食体重与产卵量之间存在非常显著的正相关(r＝0.9496，P<0.001)。雌虫的生殖效率指数REI＝11.06，生殖适合度指 数RFI＝7.19。生活周期在不同季节无明显变化。雄虫吸血期受雌虫吸引而成功地交配，这一过程是在吸引性信息素的作用下完成的。

STUDIES ON THE BIONOMICS OF HAEMAPHYSALIS LONGICORNIS NEUMANN (ACARI:IXODIDAE) UNDER LABORATORY CONDITIONS

The life span of Haemaphysalis longicornis Neumann lasted 135.8 d in average under laboratory conditions (27±1℃, 75%RH, 6L: 18D). The mean durations for the various stages of the life cycle were as follow: egg period 38.5 dF prefeeding, feeding and premoulting periods of larva 5.3, 3.8 and 13.9 d respectively, those of nymph7.2, 5.4 and 16.9 dF prefeeding, feeding, preoviposition and oviposition periods of adult female 7.6, 9.4, 7.8 and 20.0 d respectively. In addition, there existed a highly significant correlation between the engorgement body weight of female and the egg mass (r=0.949 6, P＜0.001). The reproductive efficiency index (REI) and reproductive fitness index (RFI) in female were 11.06 and 7.19 respectively. The life cycle did not significantly change along with seasons. During adults feeding period, males were attracted by females so as to achieve copulation and this process was regulated by an attractant sex pheromone.