白跗平腹小蜂的产卵习性

Habits and Characteristics of Anastatus albitarsis Ashmead in Oviposition

白跗平腹小蜂产卵习性观察,在空调间喂蜂蜜条件下进行。该蜂对寄主卵质量及寄生与否有较强识别能力,寄主卵严重缺乏则重复寄生。雌蜂平均寿命39.25天;平均产卵期28.87天;单雌终生产卵平均380.2粒。大多数卵在产卵期前20天产下,此期内子代蜂雌性比较高。子代蜂雄性相对较少,且在产卵期内每天产下数量较均匀。子代蜂雌性比平均为84.49%。

Habits and characteristics of Anastatus albitarsis Ashmead in oviposition wereobserved in air-condition room where the female bees were fed on honey. This report show thatAnastatus albitarsis Ashmead has a remarkable capacity of discernment on the quality of hostegg or whether a host egg has been parasited. Re-parasitism occurs only when it goes seriouslyshort of host egg. The average lifespan of the female bee is 39.25 days, and the average ovi-position period lasts for 28. 87 days. Parthenogeneticly, the average number of eggs ovipositedby one female bee in all it's life is 380.2. Most of them. are oviposited 20 days before it'soviposition period, besides, the ratio of female and male in the filial generation from theseeggs is much higher. The percent of male imagoes in filial generation is relatively low. Duringoviposition period, the numbers of eggs oviposited everyday are nearly equal. The averagepercent of female imagoes in filial generation is 84. 49%.