Re-description of 1^st instar larva of Osmylusfulvicephalus (Scopoli, 1763) (Neuroptera, Osmylidae) based on naming system of sclerites.

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-09-13 eCollection Date: 2024-01-01 DOI:10.3897/BDJ.12.e129392

Haohan Mao, Zhiqi Liu, San-An Wu, Han Xu

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Abstract

Background: Osmylusfulvicephalus (Scopoli, 1763), the type species of the Osmylidae, has garnered significant research interest in taxonomy, particularly regarding its larval stages. To date, most studies have focused on the third instar larvae, but ignore the first instar larvae with the rough and incomplete morphological descriptions. This lack of studies has led to an unclear understanding of the morphological differences between larval stages, making it challenging to identify larvae, distinguish different osmylid species or even reconstruct phylogeny.

New information: In this study, the first instar larva of O.fulvicephalus was re-described in detail and illustrated, based on the naming system of sclerites. Based on this, it could be effectively distinguished from other species by the following characteristics: i) number of segments in the labial palpi; ii) the setae beard on the apex of antenna; iii) the number of transversal rows of the anal hooks. In addition, we compared the sclerites and other morphological characteristics with the third instar larvae of Osmylusfulvicephalus to better distinguish larvae at different developmental stages.

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根据硬骨的命名系统重新描述 Osmylusfulvicephalus (Scopoli, 1763) （神经龙科，Osmylidae）的 1龄幼虫。

背景：Osmylusfulvicephalus（Scopoli，1763 年）是 Osmylidae 的模式种，在分类学方面引起了极大的研究兴趣，尤其是关于其幼虫阶段的研究。迄今为止，大多数研究都集中于第三龄幼虫，而忽略了形态描述粗糙且不完整的第一龄幼虫。这种研究的缺乏导致人们对幼虫不同阶段的形态差异认识不清，使得鉴定幼虫、区分不同的锇蜓种类甚至重建系统发育都面临挑战：本研究根据硬壳虫的命名系统，重新详细描述了 O.fulvicephalus 的第一龄幼虫，并绘制了插图。在此基础上，可通过以下特征将其与其他物种有效区分开来：i) 唇瓣的节数；ii) 触角顶端的刚毛胡须；iii) 肛钩的横行数。此外，我们还将硬骨和其他形态特征与 Osmylusfulvicephalus 的三龄幼虫进行了比较，以更好地区分处于不同发育阶段的幼虫。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.