黄杨斑蛾田猎姬蜂（膜翅目：姬蜂科）个体发育与生殖行为

目的 黄杨斑蛾田猎姬蜂是园林主要害虫大叶黄杨斑蛾预蛹和蛹期的专性外寄生蜂，寄生率高，控害效果突出。为充分发挥该蜂的生物防治潜能，填补国内外有关该蜂个体发育特征及生殖特性的空白从而开展本研究。 方法 以河南新纪录种黄杨斑蛾田猎姬蜂为对象，通过野外采集，结合室内恒温饲养和观察，对其个体发育过程、生殖系统构造及生殖行为进行系统研究。 结果 该蜂完成胚胎发育需48～50 h，幼虫有4个虫龄，预蛹和蛹期经历形态剧烈变化和色素的沉积，成虫具明显的性二型现象，一个世代历经23～27 d。雌蜂卵巢管9～11根，属多滋式，雄蜂1对精巢融合，输精管细长。雄蜂通过扇翅和触角拍打进行求偶，由雄蜂主导交配行为，雄蜂可交配多次，而雌蜂一生只交配1次，该蜂日产卵量可达7粒，一生可产20粒卵，存在过寄生行为。 结论 黄杨斑蛾田猎姬蜂为大卵型、卵育型外寄生蜂，寄生能力较强，具有保护和利用价值。这些基本生物学特性研究可为更好地保护和发挥黄杨斑蛾田猎姬蜂对大叶黄杨斑蛾的控害潜能奠定基础。

The Ontogeny and Reproductive Behavior of Agrothereutes minousubae (Hymenoptera: Ichneumonidae)

Objective Agrothereutes minousubae Nakanishi (Hymenoptera: Ichneumonidae) is a specific ectoparasitoid which attacks the prepupae and pupae of Pryeria sinica Moore (Lepidoptera: Zygaenidae), an important insect pest of garden plants, causing high mortality of the host species. To make use of this potential biological control agent, it’s critical to study the ontogeny and reproductive characteristics of A. minousubae. Method The ontogeny, reproductive system and reproductive behavior of A. minousubae, which was a new record species in Henan Province, were systematically determined using field collection and indoor rearing at 24 ± 1 ℃. Result It took 48 to 50 hours for the wasp to complete embryonic development. The larvae had 4 instars. The prepupa and pupa stages undergo drastic morphological changes and pigment deposition. The adults had obvious sexual dimorphism, and one generation lasts for 23 to 27 days. A female usually had 9～11 polytrophic ovarioles. There was a pair of testes with long and thin vas deferens in male internal reproductive system. Male wasps exhibited wing fanning and antennal drumming during courtship behavior when exposed to females. Males played a dominant role in mating behavior. Males copulated more than one time while female usually copulated only once in their life time. A female deposited 7 eggs daily, deposited about 20 eggs in its lifetime, and had superparasitism behavior. Conclusion A. minousubae is a synovigenic ectoparasitoid with relatively large egg and strong parasitic ability. This parasitoid has great value of protection and utilization. The study can provide the basis for better protection and utilization of this wasp against P. sinica.