来自印度的克卢格阔颚蜉蝣亚属（2012年）（蜉蝣目：细裳蜉科：短裳蜉属伊顿，1881年）一新物种及一新记录种

A new species and a new record of the subgenus Dilatognathus Kluge 2012 (Ephemeroptera: Leptophlebiidae: genus Choroterpes Eaton, 1881) from India.

作者信息

Selvakumar C, Subramanian K A, Chandra Kailash, Sivaramakrishnan K G, Jehamalar E Eyarin, Sinha Bikramjit

机构信息

Zoological Survey of India, Prani Vigyan Bhawan, M-Block, New Alipore, Kolkata- 700 053, West Bengal, India..

出版信息

Zootaxa. 2017 May 17;4268(3):439-447. doi: 10.11646/zootaxa.4268.3.9.

DOI:10.11646/zootaxa.4268.3.9

PMID:28610368

Abstract

A new species belonging to the subgenus Dilatognathus of the genus Choroterpes is described based on larvae collected from Andaman and Nicobar Islands. Choroterpes (Dilatognathus) nicobarensis n. sp. can be distinguished from all other species of Dilatognathus by the absence of a tusk on the maxillary apex, has ventro-apical flange and dentiseta directed distally, as in Choroterpes other than Dilatognathus. Choroterpes (Dilatognathus) nigella (Kang & Yang 1994) is newly recorded based on larvae collected in Arunachal Pradesh, Meghalaya and West Bengal. Remarks on the evolution of the mouth apparatus of the subgenus Dilatognathus are given.

摘要

基于从安达曼和尼科巴群岛采集的幼虫，描述了一种属于Choroterpes属Dilatognathus亚属的新物种。尼科巴Choroterpes（Dilatognathus）nicobarensis新种与Dilatognathus的所有其他物种的区别在于上颌顶端没有獠牙，具有腹顶端凸缘和向远端的齿刚毛，这与Dilatognathus以外的Choroterpes属其他物种相同。基于在阿鲁纳恰尔邦、梅加拉亚邦和西孟加拉邦采集的幼虫，Choroterpes（Dilatognathus）nigella（Kang & Yang 1994）被新记录。给出了关于Dilatognathus亚属口器进化的评论。