Characterization and mapping of sensilla on the head appendages of noterid larvae (Coleoptera: Noteridae), and development of a preliminary biometric method for taxa delimitation,Journal of Morphology

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Characterization and mapping of sensilla on the head appendages of noterid larvae (Coleoptera: Noteridae), and development of a preliminary biometric method for taxa delimitation
Journal of Morphology ( IF 1.5 ) Pub Date : 2020-08-31 , DOI: 10.1002/jmor.21241
Juan I Urcola ₁ , Cesar J Benetti ₂ , Yves Alarie ₃ , Georgina Rodriguez ₄ , Mariano C Michat _{1,

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Affiliation

Larvae of the burrowing water beetle family Noteridae are distributed worldwide and are often abundant in a broad range of aquatic habitats, playing an important role in structuring freshwater communities, yet they have remained among the most poorly studied groups of aquatic beetles. Studies on sensillar equipment of aquatic insect larvae are largely lacking, despite their potential use in phylogeny and biometric identification methods. In this article, the external morphology and distribution of sensilla on the head appendages of first instar larvae of selected genera of Noteridae were examined using scanning electron microscopy. Seven main types were distinguished based on their morphological structure: basiconica (3 subtypes), campaniformia (2 subtypes), chaetica (7 subtypes), coeloconica (6 subtypes), coniform complex (2 subtypes), placodea, and styloconica (3 subtypes). The apex of the labial palpus was found to be the most variable and informative region in regard to the number, relative position, and topology of sensilla. Fingerprint models were, therefore, generated for this region in each of the studied genera, allowing their identification.

中文翻译：

刺翅目幼虫（鞘翅目：刺翅目）头部附属器上感受器的特征和绘图，以及分类群划定的初步生物识别方法的开发

穴居甲虫家族 Noteridae 的幼虫分布于世界各地，通常在广泛的水生栖息地中丰富，在构建淡水群落方面发挥着重要作用，但它们仍然是研究最薄弱的水生甲虫群体之一。尽管它们在系统发育和生物特征识别方法中具有潜在用途，但对水生昆虫幼虫的感官设备的研究却非常缺乏。在本文中，使用扫描电子显微镜检查了Noteridae 选定属的一龄幼虫头部附属器上感受器的外部形态和分布。根据形态结构区分七种主要类型：basiconica（3个亚型）、campaniformia（2个亚型）、chaetica（7个亚型）、coeloconica（6个亚型）、coniform complex（2个亚型）、placodea、和 styloconica（3 个亚型）。在感受器的数量、相对位置和拓扑结构方面，唇须的顶点被发现是最具可变性和信息量最大的区域。因此，在每个研究属中为该区域生成了指纹模型，以便对其进行识别。

更新日期：2020-08-31

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