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首页> 外文期刊>Zootaxa >A new genus of egg case-carrying water scavenger beetle from the Guiana Shield (Coleoptera: Hydrophilidae: Acidocerinae)
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A new genus of egg case-carrying water scavenger beetle from the Guiana Shield (Coleoptera: Hydrophilidae: Acidocerinae)

机译:圭亚那盾牌的一种携带卵盒的水清除甲虫的新属(鞘翅目:亲水科:酸oc科)

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摘要

Radicitus gen. n. is described to accommodate three new species of water scavenger beetles from the Guiana Shield region of South America: R. ayacucho sp. n. (Venezuela), R. granitum sp. n. (Venezuela), and ft surinamensis sp. n. (Suriname). The genusis placed in the subfamily Acidocerinae, and likely shares an affinity with the genus Helochares Mulsant and its relatives. It is characterized by its convex body form, short maxillary palps, partially glabrous hind femora, and complete fifth abdominalventrite. All collections of the new genus were made from root mats and debris from seepages over rock outcrops or, rarely, root mats from streams. Individual females of all three species were observed to adhere their egg case to the venter of the abdomen.
机译:辐射根。被描述为可容纳来自南美圭亚那盾牌地区的三种新的水清除甲虫:R。ayacucho sp.。 。 (委内瑞拉),R. granitum sp。 。 (委内瑞拉)和ft surinamensis sp。 。 (苏里南)。该属位于酸小亚科(Accerocerinae)亚科中,并且可能与Helochares Mulsant属及其亲属有亲缘关系。它的特征是其凸出的体形,短的上颌触诊,部分无光滑的后股骨和完整的第五腹侧腹。新属的所有收集物都是由根垫和岩石露头上的渗漏产生的碎片制成的,或者很少是由溪流产生的根垫制成的。观察到所有三个物种的雌性个体将卵盒粘附到腹部的通风口上。

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