Endoparasitic larval stages of Eoxenos laboulbenei were documented with different techniques, with a main focus on the male tertiary larva. Two discrete endoparasitic stages occur, the secondary and the tertiary larva. The presence of large compound eyes and externally visible wing buds in the tertiary larva is a unique feature within Holometabola. The brain with large optic lobes is followed by a single postcephalic ganglionic complex. The cephalic musculature is greatly reduced but pharyngeal dilators and muscles associated with the mouth field are present. Postcephalic sclerites are absent except for the pronotum. The segmented legs bear filiform pretarsal claws. The indirect flight muscles fill up a large part of the metathorax. The 10-segmented abdomen lacks appendages. Pleural folds are present on the thorax and abdomen. The digestive tract is characterized by a very short oesophagus. The large midgut and the narrow hindgut are disconnected. Six short Malpighian tubules are present. Large testes fill out almost the entire abdomen. In contrast to the tertiary larva, the muscles of the secondary larva are not fully differentiated. Cephalic appendages are present as bud-shaped anlagen. The legs lack a pretarsal claw. The developmental transformations are outlined and discussed, also with respect to phylogenetic implications.

中文翻译：

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Eobenos laboulbenei的内寄生幼虫阶段：非典型的全人类发展（Strepsiptera，Mengenillidae）。

用不同的技术记录了Eoxenos laboulbenei的内寄生幼虫阶段，主要集中在雄性第三幼虫上。发生两个离散的内寄生虫阶段，第二和第三幼虫。在第三幼虫中，大复眼和外部可见的翼芽的存在是Holometabola的独特特征。具有大的视叶的大脑后是单个脑后神经节复合体。头的肌肉组织大大减少，但存在与口部相关的咽扩张器和肌肉。除前胸背板外，无头颅后巩膜。分段的腿上有丝状的pre骨爪。间接飞行的肌肉充满了整个胸腔。十节腹部没有附属物。胸膜和胸腔有胸膜褶。消化道的特征是食道很短。中肠和后肠较窄。存在六个短的马氏小管。大睾丸几乎填满整个腹部。与第三幼虫相比，第二幼虫的肌肉不能完全分化。头附属物以芽状的胶原蛋白存在。腿缺少tar前爪。还就系统发育的意义概述和讨论了发展的转变。腿缺少tar前爪。关于系统发育的意义，也概述和讨论了发展变化。腿缺少tar前爪。还就系统发育的意义概述和讨论了发展的转变。