在寄主-寄生蜂体系中，温度作为一个重要的非生物因子可能影响到寄生蜂生物防治的效力。在本研究中，我们以幼虫内寄生蜂-芙新姬小蜂为研究对象，在室内研究四种温度下（26, 29, 32, 和 35°C）其寄生蜂对蔬菜潜叶蝇-美洲斑潜蝇的控害潜力，且用芸豆室内饲养美洲斑潜蝇种群。研究结果表明：与最佳温度26°C相比，高温（29, 32 和 35°C）虽然降低了雌蜂的寿命，但是由于雌蜂在高温下增加了日均致死数，导致高温没有显著影响该雌蜂的总寄主致死数。此外，该雌蜂的生活史参数（寿命，寄生数，直接致死数及非繁殖型寄主致死数）均与温度和寄主取食数呈线性关系。该研究结果有助于更好的理解寄生蜂芙新姬小蜂在高温季节/环境下对蔬菜潜叶蝇的防控。

Coexisting natural enemies that share a common host resource in the same guild usually exhibit variation in their life history traits, due to their need to share a similar ecological niche. In this study, we compared the immature development times and adult life history traits of two coexisting, host-feeding parasitoids, Diglyphus isaea Walker and Neochrysocharis formosa Westwood (Hymenoptera: Eulophidae), of which both attack larvae of the same agromyzid leafminers. These two species are both synovigenic, idiobiont parasitoids, whose adults consume host fluids (“host feeding”) and lay anhydropic eggs. Of the two, D. isaea has a larger body but little or no initial egg load, and engages in similar lifetime host-feeding events. However, it achieves higher fecundity, longer adult longevity, and higher host suppression ability than N. formosa, which has a smaller body and higher initial egg load. Although D. isaea engages in similar lifetime host-feeding events with N. formosa, all of its gains in life history traits per host-feeding event of D. isaea were larger than those of N. formosa. The age-specific fecundity and host mortality curves of N. formosa were more skewed in early life than those of D. isaea. In addition, the ovigeny index of N. formosa was negatively correlated to body size. Our results confirmed that two coexisting parasitoids, which share the same host resource, show different immature development patterns and life history traits, suggesting that different resource allocation mode could be a general rule of coexisting species sharing the same habitat or host.