Definition of the Ichthyurus feae species group (Cantharidae, Chauliognathinae, Ichthyurini), with descriptions of three new species from China

IF 1.1 3区农林科学 Q3 ENTOMOLOGY

Journal of Asia-pacific Entomology Pub Date : 2025-03-19 DOI:10.1016/j.aspen.2025.102400

Hanqing Lin , Haoyu Liu , Xingke Yang , Yuxia Yang

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Abstract

A cantharid species group consisting of the species morphologically similar to Ichthyurus feae Gestro, 1891 is defined. The I. feae species-group is characterized by the middle-sized and relatively stout body, mesofemora moderately or strongly swollen and with several denticles in male, while normal in female; terminal abdominal tergite strongly ridged along ventro-lateral margins in male, with slender and horn-shaped lateral projections in both sexes; terminal abdominal ventrite greatly reduced in male, with proctiger and paraproct completely exposed, while well developed and rounded, dentated at posterior margin in female. It contains a total of nine species, including I. feae Gestro, 1891 (=I. lii nom. nov. for I. laosensis Li et al., 2014 syn. nov.), I. longicauda Gestro, 1891, I. nigromaculatus Gestro, 1891, I. quadrimaculatus Gestro, 1888, I. melanospilus Gestro, 1892, I. salvazai Pic, 1943 (=I. bernardi Li et Gao, 2015 syn. nov.), I. gracilicauda sp. nov., I. multidentatus sp. nov. and I. hainanensis sp. nov. The new species are all discovered from China, and I. feae and I. salvazai are firstly recorded to China and redescribed. These species are illustrated with habitus, genital segments of both sexes, aedeagi and internal genitalia of females. In addition, a distribution map and an identification key to all species of the I. feae species-group are provided.

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标题鱼龙科（斑马鱼科）种群定义及中国三新种描述

定义了一个由形态与Ichthyurus feae Gestro， 1891相似的物种组成的斑马鸟种群。一种群的特点是体型中等，比较粗壮，雄性中股膜中度或强烈肿胀，有几个小齿，雌性正常；顶端腹部辉石沿腹侧缘强脊状在雄性，具细长和角状的侧面突出在两性；雄性的腹腹终腔大大缩小，前腹和副腹完全暴露，而雌性的腹后缘发育良好，圆形，具齿状。共有9种，其中包括I. feae Gestro, 1891（= 1）。lii nom11 . for I. laosensis Li et al., 2014 syn11 .)， I. longicauda Gestro, 1891， I. nigromaculatus Gestro, 1891， I. quadrimaculatus Gestro, 1888， I. melanospilus Gestro, 1892， I. salvazai Pic, 1943 （=I. lausensis Li et al., 2014）。bernardi Li et Gao, 2015 syn11 .)， I. gracilicauda sp. nov， I. multidentatus sp. nov和I. hainanensis sp. nov.这些新种均来自中国，I. feae和I. salvazai是首次在中国记录并重新描述的。这些物种以习性、两性生殖器节、雌体和内生殖器来说明。此外，还提供了一种蚁群的分布图和识别钥匙。

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来源期刊

Journal of Asia-pacific Entomology Agricultural and Biological Sciences-Insect Science

CiteScore

2.70

自引率

6.70%

发文量

152

审稿时长

69 days

期刊介绍： The journal publishes original research papers, review articles and short communications in the basic and applied area concerning insects, mites or other arthropods and nematodes of economic importance in agriculture, forestry, industry, human and animal health, and natural resource and environment management, and is the official journal of the Korean Society of Applied Entomology and the Taiwan Entomological Society.