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The presence of scales on the wings of Lepidoptera, comprising moths and butterflies, characterises this order of insects. The name is derived from Ancient Greek λεπίδος (scale) and πτερόν (wing). The wings of Lepidoptera are minutely scaled, which feature gives the name to this order.〔 Scoble, M.J. (2005). ''The Lepidoptera: Form, Function, and Diversity''. Page 63. Accessed through Google books on 21 Aug 2009 ()〕 Scales also cover the head, parts of the thorax and abdomen as well as parts of the genitalia. == Morphology == The morphology of scales has been studied by Downey & Allyn (1975) and scales have been classified into three groups, namely:〔 * Hair-like or piliform. * Blade-like or lamellar. * Other variable forms. Primitive moths (non-Glossata and Eriocranidae) have 'solid' scales which are imperforate, i.e., they lack a lumen.〔 As per Scoble (2005):〔 The Trichoptera (caddisflies) which are a sister group of the Lepidoptera have scales, but also possess caudal cerci on the abdomen, a feature absent in the Lepidoptera.〔Powell, Jerry A. Lepidoptera (pp. 631-664) in Resh, V. H. & R. T. Cardé (Editors) 2003. Encyclopedia of Insects. Academic Press.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Scale (Lepidopteran anatomy)」の詳細全文を読む スポンサード リンク
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