A taxonomic revision of the tristrigella species group of the genus Nemophora Hoffmannsegg (Lepidoptera, Adelidae) from the Philippines, Malaysia, Brunei and Indonesia

Abstract

<p>This study defines and revises the monophyletic <i>tristrigella </i>species group of the genus <i>Nemophora</i> Hoffmannsegg, 1798, characterized by six presumably apomorphic traits, including (but not limited to) a glossy golden vertex and glossy golden basal part of forewing sharply contrasting with the coppery bronze apical part, which features a distinctive pattern of several yellow spots surrounded by dark brown scales. The group comprises four species: N. <i>pendleburyi </i>Kozlov, <b>sp. nov.</b>, from Malaysia;<i> N. vitalii</i> Kozlov, <b>sp. nov.</b>, from Indonesia, Malaysia and Brunei; <i>N. chalcotechna</i> (Meyrick, 1937) from the Philippines; and <i>N. tristrigella</i> (Walker, 1866) from Indonesia and the Philippines. These specie<a title="">-</a>s are described and illustrated herein, with identification keys based on external morphology and male genitalia provided. Particular attention is paid to similarities and dissimilarities between <i>N. chalcotechna </i>and <i>N. tristrigella</i>.<br></p>