Jałoszyński Paweł
Museum of Natural History, University of Wrocław, Sienkiewicza 21, 50-335 Wrocław, Poland..
Zootaxa. 2019 Oct 16;4686(3):zootaxa.4686.3.7. doi: 10.11646/zootaxa.4686.3.7.
Borneoconnus, a subgenus of Euconnus endemic to Borneo, is revised. Euconnus laticlava Franz (type species of subgenus), E. eremita Franz and E. sabahanus Franz are redescribed. Morphological structures of E. laticlava are illustrated and described in detail. It is concluded that Borneoconnus is most similar to Euconnus s. str., Napochus Thomson and Psomophus Casey; differences in morphological structures are discussed. Borneoconnus is maintained as a separate subgenus, pending further study, as this name seems to be a candidate to place as a junior synonym of Napochus in a future reclassification of Euconnus subgenera. The variability in the pronotal form found within otherwise morphologically uniform Borneoconnus species supports a weak taxonomic value of this character to use in subgeneric diagnoses. This observation may result in merging Euconnus s. str. and Napochus Thomson, and possibly also Borneoconnus, in one subgenus. However, the yet unrevised subgenera of Euconnus must be studied before such an action is taken.
对婆罗洲特有的真步甲属亚属婆罗洲步甲进行了修订。重新描述了宽边婆罗洲步甲（亚属模式种）、荒漠婆罗洲步甲和沙巴婆罗洲步甲。详细说明了并描述了宽边婆罗洲步甲的形态结构。得出的结论是，婆罗洲步甲与真步甲属、纳波步甲属和伪步甲属最为相似；讨论了形态结构上的差异。婆罗洲步甲仍作为一个独立的亚属保留，有待进一步研究，因为在未来真步甲属亚属的重新分类中，这个名称似乎有可能作为纳波步甲属的次异名。在形态上其他方面一致的婆罗洲步甲物种中发现的前胸背板形态的变异性，支持了这一特征在亚属诊断中分类价值较弱的观点。这一观察结果可能导致将真步甲属和纳波步甲属，甚至可能还有婆罗洲步甲属合并为一个亚属。然而，在采取这一行动之前，必须先研究真步甲属尚未修订的亚属。
