Larval morphology of Agabinae (Coleoptera: Dytiscidae): descriptions of three species of the subgenus Agabus s. str. Leach, 1817 with phylogenetic considerations

IF 0.5 4区农林科学 Q4 ENTOMOLOGY Aquatic Insects Pub Date : 2020-04-21 DOI:10.1080/01650424.2020.1741646

Y. Alarie, M. C. Michat

引用次数: 2

Abstract

Abstract The larvae of three species of Agabus s. str. Leach, 1817, A. bifarius (Kirby, 1837), instar III, A. disintegratus (Crotch, 1873), instars I–III, and A. falli (Zimmermann, 1934), instars I–III, are described including for the first time a detailed chaetotaxy analysis of the cephalic capsule, head appendages, legs, last abdominal segment and urogomphi. Larvae of A. falli show several unique morphological features that differentiate them from those of the other species of Agabini studied. A provisional parsimony analysis based on 55 larval characteristics of 17 species in seven genera of the subfamily Agabinae was conducted using the program TNT. As a result of this analysis, Agabini was recovered as polyphyletic while Platynectini and Hydrotrupini are deemed monophyletic.

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龙舌兰科的幼虫形态（鞘翅目：双翅目）：龙舌兰亚属三个物种的描述

摘要描述了三种Agabus s.str.Leach，1817，A.bifarius（Kirby，1837），三龄，A.desiderus（Crotch，1873），一至三龄和A.falli（Zimmermann，1934），一–三龄的幼虫，包括首次对头囊、头附属物、腿、最后腹部和泌尿生殖膜进行了详细的毛性分析。A.falli的幼虫表现出几种独特的形态特征，使其与所研究的其他Agabini物种的幼虫不同。利用TNT程序对龙舌兰亚科7属17种的55个幼虫特征进行了初步简约分析。根据该分析结果，Agabini被恢复为多系，而Platynectini和Hydrotrupini被认为是单系。

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来源期刊

Aquatic Insects 生物-昆虫学

CiteScore

2.00

自引率

25.00%

发文量

审稿时长

>12 weeks

期刊介绍： Aquatic Insects is an international journal publishing original research on the systematics, biology, and ecology of aquatic and semi-aquatic insects. The subject of the research is aquatic and semi-aquatic insects, comprising taxa of four primary orders, the Ephemeroptera, Odonata, Plecoptera, and Trichoptera but also aquatic and semi-aquatic families of Hemiptera, Coleoptera, and Diptera, as well as specific representatives of Hymenoptera , Lepidoptera, Mecoptera, Megaloptera , and Neuroptera that occur in lotic and lentic habitats during part of their life cycle. Studies on other aquatic Hexapoda (i.e., Collembola) will be only accepted if space permits. Papers on other aquatic Arthropoda (e.g., Crustacea) will not be considered, except for those closely related to aquatic and semi-aquatic insects (e.g., water mites as insect parasites). The topic of the research may include a wide range of biological fields. Taxonomic revisions and descriptions of individual species will be accepted especially if additional information is included on habitat preferences, species co-existing, behavior, phenology, collecting methods, etc., that are of general interest to an international readership. Descriptions based on single specimens are discouraged. Detailed studies on morphology, physiology, behavior, and phenology of aquatic insects in all stadia of their life cycle are welcome as well as the papers with molecular and phylogenetic analyses, especially if they discuss evolutionary processes of the biological, ecological, and faunistic formation of the group.