Description of the mature larva of four species of the Australasian endemic genus Sternopriscus Sharp, 1882 (Coleoptera: Dytiscidae) with phylogenetic considerations

IF 0.5 4区农林科学 Q4 ENTOMOLOGY Aquatic Insects Pub Date : 2021-05-31 DOI:10.1080/01650424.2021.1919716

Y. Alarie, M. C. Michat, C. Watts

引用次数: 1

Abstract

Abstract The instar III larvae of the Australian endemic species Sternopriscus alpinus Hendrich and Watts, 2004, S. clavatus Sharp, 1882, S. hansardii (Clark, 1862) and S. multimaculatus (Clark, 1862) are described and illustrated for the first time. We explore implications for understanding the evolution of larval morphological traits amongst selected Sternopriscina genera. A parsimony analysis based on 84 larval characteristics of 11 species in six genera was conducted using the program TNT. Larvae of Sternopriscus Sharp, 1882 are characterised by the last abdominal segment not extending into siphon and by very elongate urogomphi. Sternopriscus is subdivided into two groups based either on absence or reduction in number of natatory setae along the dorsal margin of femora, tibiae and tarsi. Sternopriscus is postulated to be sister to a clade comprised of Chostonectes Sharp, 1882, Megaporus Brinck, 1943 and Antiporus Sharp, 1882.

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1882年大洋洲特有的四种胸骨鳞蝽属(鞘翅目:蝶蛾科)成熟幼虫的描述及系统发育的考虑

摘要首次对澳大利亚特有种Sternopriscus alpinus (Hendrich and Watts, 2004)、S. clavatus Sharp(1882)、S. hansardii (Clark, 1862)和S. multimaculatus (Clark, 1862)的III龄幼虫进行了描述和说明。我们探讨了在选定的胸骨棘属中理解幼虫形态特征进化的意义。采用TNT软件对6属11种84种幼虫特征进行简约性分析。1882年生的尖胸棘鱼幼虫的特征是腹部最后一节没有延伸到虹吸管，并且有很长的尾形体。胸正肌根据沿股骨、胫骨和跗骨背缘的自然刚毛的缺失或数量的减少被细分为两组。据推测，胸骨裂角是由1882年的夏普Chostonectes, 1943年的Megaporus Brinck和1882年的Antiporus Sharp组成的分支的姐妹。

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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.