A taxonomic revision of the genus Alexeter Förster (Hymenoptera, Ichneumonidae, Ctenopelmatinae, Mesoleiini) from Taiwan, with descriptions of six new species.

IF 1.3 3区生物学 Q2 ZOOLOGY

ZooKeys Pub Date : 2025-09-02 eCollection Date: 2025-01-01 DOI:10.3897/zookeys.1250.156835

Hsuan-Pu Chen, Chia-Lung Huang, Shiuh-Feng Shiao

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引用次数: 0

Abstract

The genus Alexeter Förster, 1869 is first recorded from Taiwan. One previously described species, A. shakojiensis Uchida, 1930, is newly recorded from Taiwan. Six new species, A. flavomaculatus sp. nov., A. hsiaoae sp. nov., A. mediolobus sp. nov., A. monticola sp. nov., A. pseudozangicus sp. nov., and A. rufispeculus sp. nov., are described and can be distinguished from their congeners primarily based on color pattern, mandibular teeth, propodeal carinae, fore wing length and venation, ocellar and first metasomal tergite measurements, and flagellomere counts. Illustrations of the male genitalia and a diagnostic key to the Taiwanese Alexeter species are provided. DNA-based species delimitations are provided as supporting evidence for four new species. In a COI-based phylogeny sampling 31 operative taxonomic units of Alexeter and similar genera, the genus Alexeter was not resolved as a monophyletic group. Additionally, the COI barcode showed limitations in distinguishing some Alexeter morphospecies, indicating the need for further evaluation of COI-based species delimitation in this genus.

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A台湾Alexeter属的分类学修订Förster（膜翅目，姬蜂科，栉蜂科，中蜂属）并有6新种描述。

Alexeter属Förster， 1869年首次记录于台湾。A. shakojiensis Uchida， 1930为台湾新记录种。本文描述了6个新种，分别是A. flavomaculatus sp. nov、A. hsiaoae sp. nov、A. mediolobus sp. nov、A. monticola sp. nov、A. pseudoangicus sp. nov和A. rufispeculus sp. nov。这些新种主要是根据颜色图案、下颌牙齿、拟隆、前翅长度和脉络、子房和第一复气孔的测量以及鞭毛计数来与它们的同属物种区分。插图的男性生殖器和诊断关键的台湾Alexeter种提供。基于dna的物种划分提供了四个新种的支持证据。在基于coi的系统发育抽样Alexeter和类似属的31个有效分类单位中，Alexeter属未被解决为单系群。此外，COI条形码在区分某些Alexeter形态种方面存在局限性，表明需要进一步评估基于COI的该属物种划分。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ZooKeys 生物-动物学

CiteScore

2.70

自引率

15.40%

发文量

400

审稿时长

3 months

期刊介绍： ZooKeys is a peer-reviewed, open-access, online and print, rapidly produced journal launched to support free exchange of ideas and information in systematic zoology, phylogeny and biogeography. All papers can be freely copied, downloaded, printed and distributed at no charge. Authors and readers are thus encouraged to post the pdf files of published papers on homepages or elsewhere to expedite distribution. There is no charge for color.

﻿A taxonomic revision of the genus Alexeter Förster (Hymenoptera, Ichneumonidae, Ctenopelmatinae, Mesoleiini) from Taiwan, with descriptions of six new species.

Abstract

A taxonomic revision of the genus Alexeter Förster (Hymenoptera, Ichneumonidae, Ctenopelmatinae, Mesoleiini) from Taiwan, with descriptions of six new species.