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Revealing male genital morphology in the giant ant genus Dinoponera with geometric morphometrics.
Arthropod Structure & Development ( IF 1.7 ) Pub Date : 2020-04-18 , DOI: 10.1016/j.asd.2020.100943
Leonardo Tozetto 1 , John E Lattke 1
Affiliation  

Genitalia include some of the most complex and morphologically diverse structures in insects, finding extensive use in taxonomy, but ant taxonomy is female biased and knowledge of the males is little explored, potentially depriving ant taxonomy of valuable information. We examine the male genital morphology of six species of Dinoponera and the variation among species and within species is described. We performed geometric morphometric analyses for the penisvalvae and lateropenite of the volsella. The results from the descriptions and statistical analyses show the genitalia offer valuable characters for species delimitation. What is presently known as Dinoponera australis can be differentiated into discrete populations, perhaps some representing cryptic species. The similarities between D. australis and D. snellingi suggest a close relation between them as well as between D. gigantea and D. quadriceps. We conclude that several genital characters, especially those of the penisvalvae, can be used to differentiate the species and might be useful to clarify the taxonomy of Dinoponera.

中文翻译:

用几何形态计量学揭示巨蚁类恐龙的雄性生殖器形态。

生殖器包括昆虫中一些最复杂且形态多样的结构,在分类学中得到广泛应用,但蚂蚁分类法是女性偏见的,很少探索雄性知识,这可能剥夺了蚂蚁分类法的宝贵信息。我们检查了六个物种的雄性生殖器形态,并描述了物种间和物种内的变异。我们对囊的阴茎瓣和红土进行了几何形态分析。描述和统计分析的结果表明,生殖器为物种划定提供了有价值的特征。目前被称为南方恐龙(Dinoponera australis)可以分为离散种群,也许有些代表隐性物种。D. australis和D.之间的相似之处 snellingi建议他们之间以及巨型D. gigantea和D.股四头肌之间有密切的关系。我们得出的结论是,几个生殖器特征,特别是阴茎瓣的那些,可以用来区分该物种,并且可能有助于阐明恐龙的分类学。
更新日期:2020-04-18
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