Many hymenopteran parasitoids are known as biocontrol agents, such as Anisopteromalus calandrae (Howard) (Hymenoptera: Pteromalidae), which is known to parasitize larvae and pupae of coleopteran pests including Lasioderma serricorne (Fabricius) (Coleoptera: Ptinidae). The success of these parasitoids is related to their searching ability, which is mediated through chemical stimuli of the habitat, food, and the progeny of the host itself. This study aimed to assess the chemotaxic responses of A. calandrae comparing the reproductive state of the insects and the experience of wasp females, to different development stages (larvae and pupae) and the presence or absence of the host diet. The chemotaxic responses of A. calandrae individuals at 2 to 4 days old were assessed in a “Y” type olfactometer. Virgin and paired females (without and with previous experience of parasitism) were exposed to larvae of last instar contrasted with pupae and to the diet of L. serricorne. Both virgin and mated males were tested only for diet. Virgin females showed a preference for the diet in contrast to the larvae and to the pupae in contrast to the diet. Paired females without experience choose larvae over diet and made no distinction between pupae and diet. Experienced mated females showed preference for the host to which it had access before, instead of any other alternative option, indicating that there may be changes in the preference through learning.

中文翻译：

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拟南芥（霍华德）（膜翅目：翼手目科）对幼虫，P的气味和蛇皮草（Fabricius）饮食（鞘翅目：tin科）的化学趋化反应。

许多膜翅类寄生生物被称为生物防治剂，例如Anisopteromalus calandrae（霍华德（Hymenoptera：Pteromalidae）），已知寄生于鞘翅目有害生物的幼虫和p，包括Lasioderma serricorne（Fabricius）（鞘翅目：Ptinidae）。这些寄生虫的成功与它们的搜索能力有关，这是通过栖息地，食物和宿主自身后代的化学刺激介导的。这项研究旨在评估A. calandrae对不同发育阶段（幼虫和p）的昆虫的繁殖状态和黄蜂雌虫的经验以及宿主饮食的存在与否的趋化反应。Calandrae的化学趋化反应使用“ Y”型嗅觉仪评估2至4天大的个体。处女和成对雌性（没有寄生虫病且没有寄生虫病的经验）暴露于最后ser龄幼虫（与p相反）和采食L. serricorne。处女和交配的雄性只进行饮食测试。与幼虫相比，处女女性对饮食的偏好更大，与饮食相比，更倾向于ae。没有经验的成对雌性选择幼虫而不是饮食，对and和饮食没有区别。有经验的交配雌性显示出对它曾经接触过的宿主的偏爱，而不是其他任何选择，这表明通过学习，偏爱可能有所改变。