巨型褶翅小蜂的生活史和产卵行为
落巨福,刘 强**
点击：2074次 下载：0次
DOI：
作者单位：天津师范大学化学与生命科学学院 天津300387
中文关键词：巨型褶翅小蜂;西鄂尔多斯; 生活史;活动规律; 产卵行为
英文关键词：Leucospis gigas, West Erdos Region, life history, active regulation, oviposition behavior
中文摘要：巨型褶翅小蜂Leucospis gigas Fabricius是小蜂总科中体型最大的物种之一，对野生传粉蜜蜂中的一些种类为害很大。在西鄂尔多斯地区首次发现其寄生当地多种植物的重要传粉昆虫沙漠石蜂Megachile (Chalicodoma) desertorum Cockerell后，对其在当地的生活史、成蜂的活动规律、寄主范围以及产卵行为进行了研究。结果表明：巨型褶翅小蜂在西鄂尔多斯地区1年发生1代，当地没有雄性个体，营孤雌生殖。雌蜂寿命30 d左右，每年的6月中旬为成蜂活动高峰期。在当地只发现其寄生沙漠石蜂的老熟幼虫，其产卵行为分为3个阶段，即寻找寄主巢室、选择产卵位点与产卵、拉出产卵针。
英文摘要：Leucospis gigas Fabricius, one of the largest body-sized species in Chalcidoidea, does a great harm to some wild solitary bees. After first discovering its damage to Megachile (Chalicodoma) desertorum Cockerell, an important pollinator for many plants in West Erdos Region, we studied its life history, activeregulation of adults, host range and oviposition behavior. The results showed that L. gigas propagated 1 generation a year and reproduced by parthenogenesis; the female's life-span was about 35 days and mid-June was the active peak of adults; it parasitized only the matured larvae; the oviposition behavior could be divided into 3 steps: searching host nests, choosing the oviposition place, and extending the ovipositor stylets and laying eggs.