关于1992年埃斯科夫所定的无气管“微网蛛属”日本微网蛛（蜘蛛目，皿蛛科）。

On the desmitracheate "micronetine" genus Nippononeta Eskov, 1992 (Araneae, Linyphiidae).

作者信息

Yan Ming, Liang Xiaokai, Tu Lihong

机构信息

College of Life Sciences, Capital Normal University, Xisanhuanbeilu Str. 105, Haidian Dist. Beijing, 100048, P. R. China.

出版信息

Zookeys. 2015 Mar 9(484):95-109. doi: 10.3897/zookeys.484.8663. eCollection 2015.

DOI:10.3897/zookeys.484.8663

PMID:25829844

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4361786/

Abstract

The desmitracheate system in a "micronetine" genus Nippononeta Eskov, 1992 is recognized for the first time in the present study. This makes the subfamilial placement of this genus problematic. A morphological study was conducted for Nippononetakurilensis Eskov, 1992 (the type species of Nippononeta) and Nippononetacoreana (Paik, 1991). Characters of genitalia and tracheal system, as well as some somatic characters were studied in detail by using scanning electronic microscopy (SEM), and compared with those of Agyneta. Updated descriptions of the genus Nippononeta and its two species are presented. Putative synapomorphies for Nippononeta and Agyneta are provided, as well as some putative synapomorphies shared by the two genera. The results imply that both scaped epigynum and desmitracheate tracheal system are probably homoplastic. The placement of Nippononeta and Agyneta within Linyphiidae need to be resolved in future studies.

摘要

在本研究中，首次确认了1992年埃斯科夫（Eskov）所定“微网蛛属”（“micronetine” genus）日本微网蛛（Nippononeta）的去气管系统。这使得该属在亚科中的分类位置存在问题。对1992年的库里尔日本微网蛛（Nippononeta kurilensis Eskov，日本微网蛛的模式种）和韩国日本微网蛛（Nippononeta coreana (Paik, 1991)）进行了形态学研究。利用扫描电子显微镜（SEM）详细研究了生殖器和气管系统的特征以及一些躯体特征，并与姬蛛属（Agyneta）的特征进行了比较。给出了日本微网蛛属及其两个物种的最新描述。提供了日本微网蛛属和姬蛛属的假定共衍征，以及这两个属共有的一些假定共衍征。结果表明，具柄外雌器和去气管系统可能都是非同源相似的。日本微网蛛属和姬蛛属在皿蛛科（Linyphiidae）中的分类位置有待在未来的研究中解决。