Bilton David T
Marine Biology and Ecology Research Centre, School of Biological & Marine Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK..
Zootaxa. 2017 Apr 12;4254(2):255-268. doi: 10.11646/zootaxa.4254.2.6.
The riffle beetle genus Leielmis Delève, 1964 is redescribed and shown to contain three species, all of which are apparently endemic to the South African Cape, where they live in permanent mountain streams with cold running water. A lectotype is designated for Helmis georyssoides Grouvelle, 1890, and two additional species (L. gibbosus sp. nov. and L. hirsutus sp. nov.) are described for the first time. Following study of the type series, L. georyssoides is shown to be endemic to Table Mountain; most specimens previously assigned to this taxon representing an additional species (L. gibbosus sp. nov.), widespread in the interior Cape Fold Mountains. The record of Leielmis from Angola is considered highly doubtful. Comparative notes and a key are provided to allow the identification of known species of the genus.
弹步甲属Leielmis Delève，1964年被重新描述，该属包含三个物种，所有物种显然均为南非开普地区特有，它们生活在有冷流水的永久性山间溪流中。为1890年的Helmis georyssoides Grouvelle指定了一个选模标本，并首次描述了另外两个物种（L. gibbosus新种和L. hirsutus新种）。在对模式系列进行研究后，发现L. georyssoides是桌山特有物种；之前归入该分类单元的大多数标本代表了另一个物种（L. gibbosus新种），广泛分布于内陆开普褶皱山脉。来自安哥拉的Leielmis记录被认为非常可疑。提供了比较说明和检索表，以便识别该属的已知物种。
