A new species, Gelis timarchae Schwarz, Shaw & Kan, is figured and described from specimens reared as a solitary endoparasitoid of fresh eggs of Timarcha nicaeensis in the south of France. Oviposition behaviour of the adult parasitoid, directly into the host cytoplasm, is described and links to videos are given. This appears to be the first record of any ichneumonid developing as an endoparasitoid of an insect egg, and it is a major departure from hitherto known ectoparasitoid (or spiders’ egg-predation) behaviour in the genus Gelis. Fluid from the host egg issuing from the base of the parasitoid’s ovipositor early in the oviposition process is interpreted as a necessary reduction of hydrostatic pressure before the parasitoid egg can be forced down the ovipositor. The egg and first instar larva are figured; the latter is caudate, with the caudal appendage very unusual in being bifurcate. The complex phenology and diapause of the parasitoid were investigated partly experimentally; it is broadly bivoltine with a prepupal diapause in summer, but extra generations and prolonged diapause were both also seen.

中文翻译：

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吉利斯·图恩贝格（Gelis Thunberg）的新物种的杰出生物学表现，1827年（翅目科，Phygadeuontinae），是蒂姆巴拉（Timarcha）的新鲜卵（鞘翅目，金眼科）的一种单独的寄生性内寄生物。

从法国南部的Timarcha nicaeensis的新鲜卵的单独卵内寄生虫饲养的标本中找到并描述了一种新种，即Gelis timarchae Schwarz，Shaw和Kan。描述了成虫寄生虫直接进入宿主细胞质的产卵行为，并提供了与视频的链接。这似乎是任何鱼腥藻类作为昆虫卵的内寄生物发展的第一个记录，并且与迄今已知的Gelis属的类外寄生虫（或蜘蛛的卵捕食）行为有很大的不同。在排卵过程的早期，来自寄生卵产卵器的宿主卵中的液体被解释为必须将静水压力降低，然后才能将寄生卵压入输卵器。鸡蛋和第一龄幼虫已经找到。后者是尾状的，尾尖分叉非常不寻常。寄生物的复杂物候和滞育被部分地通过实验研究。它在夏季广泛地是双伏安，有pu前滞育，但也可见到额外的世代和长期滞育。