Life history and life table of the host-feeding parasitoid Hemiptarsenus varicornis (Hymenoptera: Eulophidae)
Life history and life table of the host-feeding parasitoid Hemiptarsenus varicornis (Hymenoptera: Eulophidae)
复制标题
取食寄主的寄生蜂 Hemiptarsenus varicornis (Girault) 的生活史和生命表（膜翅目：Eulophidae）
DOI：
10.1007/s13355-017-0479-y
复制
发表时间：
2017-05-01
影响因子：
1.3
通讯作者：
Liu, Wan-Xue
中科院分区：
文献类型：
--
作者：
Cheng, Xiao-Qin;Cao, Feng-Qin;Liu, Wan-Xue
变角半角蜂(hemiptarsenus varicornis(Girault))是一种重要的寄主食性黄蜂，是世界范围内重要的农枝潜叶蛾的生防剂/幼虫体外寄生蜂。在27℃恒温条件下，研究了三叶斑潜蝇的生活史和生活表，雌、雄卵、幼虫、预蛹、蛹和幼蜂的发育历期分别为1.00和1.00天、2.57和2.62天、0.45和0.37天、3.88和3.52天、7.90天和7.52天。该蜂具有生殖寄生(寄生)、非生殖寄主取食(寄主取食)和寄主叮咬(寄主叮咬)三种寄主行为，分别杀死133.9、303.8和84.2%的寄主幼虫。结果表明，华角小蜂产卵量指数为0.003，是一种较强的滑膜寄生蜂。寄主取食事件的数量与寄主寄生、寄主叮咬事件、寄主寿命和寄主总死亡率密切相关。每世代的固有增长率、有限增长率、净繁殖率、总繁殖率、平均世代长度分别为0.3011只/只、1.3624只/只、66.22只/只、168.33只/只和13.56日龄。这些结果可能有助于更好地了解这种破坏性寄主取食者的生防效率。
Hemiptarsenus varicornis (Girault), a destructive host-feeding wasp, is an important biocontrol agent/larval ectoparasitoid of agromyzid leafminers worldwide. In the present study, the life history and life table of H. varicornis reared with Liriomyza trifolii (Burgess) were studied at a constant 27 degrees C. The developmental durations of female and male eggs, larvae, prepupae, pupae and total immature wasps were 1.00 and 1.00, 2.57 and 2.62, 0.45 and 0.37, 3.88 and 3.52, and 7.90 and 7.52 days, respectively. This wasp showed three types of host-killing behavior: reproductive parasitization (parasitism), non-reproductive host feeding (host feeding), and host stinging without oviposition or feeding (host stinging), resulting in 133.9, 303.8, and 84.2, respectively, killed host larvae. We confirm that H. varicornis is a strong synovigenic parasitoid, with an ovigeny index of 0.003. The number of host-feeding events was strongly correlated with parasitism, host-stinging events, longevity and total host mortality. The intrinsic rate of increase, the finite rate of increase, the net reproductive rate, the gross reproduction rate, and the mean length of a generation of H. varicornis were 0.3011/day, 1.3624/day, 66.22 offspring/individual, 168.33 offspring/individual, and 13.56 days, respectively. These results could contribute to a better understanding of the biocontrol efficiency of this destructive host feeder.