Ganjisaffar Fatemeh, Perring Thomas M
Department of Entomology, University of California, 900 University Ave., Riverside, CA 92521, USA.
Insects. 2020 May 9;11(5):292. doi: 10.3390/insects11050292.
Triapitsyn & Ganjisaffar (Hymenoptera: Encyrtidae) was recently recovered from fresh sentinel eggs of (Burmeister) (Hemiptera: Pentatomidae) in California. In the present study, life history traits of were studied at 26 ± 0 . 5 ∘ C, 40 ± 10 % RH, and a photoperiod of 14 L: 10 D hours. Results showed that 95.2% of the parasitized eggs yielded successful emergence of adults. The total immature developmental time was 14.27 and 13.95 days for females and males, respectively. The sex ratio of was 0.5 (females/offspring). Mated females laid on average 6.0 eggs per day and 222.7 eggs during their mean ovipositional period of 37.3 days. There was no significant difference in reproduction parameters between mated and non-mated females. The net reproductive rate ( R 0 ) was 103.8 females/female/generation, the intrinsic rate of increase ( r m ) was 0.171 females/female/day, the finite rate of increase ( λ ) was 1.187 population multiplication/day, the mean generation time () was 27.1 days, and the doubling time () was 4.0 days. The highest longevity was observed in mated and non-mated females fed with honey, and they lived for 70.8 and 70.1 days, respectively. Providing females with host eggs in addition to honey, reduced their longevity by 24% in mated and 28% in non-mated individuals. Non-mated females and males deprived of honey only lived for 3.5 and 2.5 days after emergence, respectively. Our results indicate that has sufficient life history traits to make it a promising egg parasitoid for the biological control of .
最近在加利福尼亚州，从新鲜的警戒卵（半翅目：蝽科）中发现了Triapitsyn & Ganjisaffar（膜翅目：跳小蜂科）。在本研究中，在26±0.5℃、40±10%相对湿度和14小时光照：10小时黑暗的光周期条件下研究了其生活史特征。结果表明，95.2%被寄生的卵成功羽化出成虫。雌性和雄性的未成熟发育总时间分别为14.27天和13.95天。其性别比为0.5（雌性/后代）。交配后的雌性平均每天产卵6.0枚，在平均37.3天的产卵期内共产卵222.7枚。交配和未交配的雌性在繁殖参数上没有显著差异。净繁殖率（R0）为103.8雌性/雌性/世代，内禀增长率（rm）为0.171雌性/雌性/天，有限增长率（λ）为1.187种群倍增/天，平均世代时间（）为27.1天，加倍时间（）为4.0天。在喂食蜂蜜的交配和未交配雌性中观察到最长寿命，它们分别存活了70.8天和70.1天。除蜂蜜外还给雌性提供寄主卵，使交配雌性的寿命缩短了24%，未交配个体缩短了28%。未交配的雌性和雄性在没有蜂蜜的情况下，羽化后仅存活3.5天和2.5天。我们的结果表明，具有足够的生活史特征，使其成为一种有前景的用于生物防治的卵寄生蜂。
