Seo-Jun CHANG 張序準

Abstract: A new flightless genus and species of Lucanidae, Pelekysaegus robustus gen. et sp. nov., is described from New Guinea. The new genus is morphologically allied to Pachistaegus de Lisle, 1967, Tumidaegus Bomans, 1988, Cherasphorus Bomans, 1988 and Microlucanus Bomans & Bartolozzi, 1996, sharing a combination of flightlessness and secondary sexual dimorphism at the elytral apex in males. Based on external morphology, several species previously placed in Gnaphaloryx Burmeister, 1847 are re-evaluated. Gnaphaloryx furfuraceus (de Lisle, 1970) is transferred to Cherasphorus Bomans, and G. pulverosus (Benesh, 1952) and G. stigmatifer de Lisle, 1974 are transferred to Microlucanus Bomans & Bartolozzi; G. pollinosus de Lisle, 1973 is tentatively transferred to Microlucanus Bomans & Bartolozzi. In addition, Pelekysaegus gen. nov., together with Pachistaegus de Lisle, Tumidaegus Bomans, Cherasphorus Bomans, and Microlucanus Bomans & Bartolozzi, is herein placed in the tribe Aegini Huang & Chen based on shared morphological characters. The taxonomic implications of these changes are briefly discussed.

Keywords: Aegini, new combination, secondary sexual character, systematics, tribal placement

摘要：本文描述了来自新几内亚的锹甲科一无飞翔能力新属及新种——Pelekysaegus robustus gen. et sp. nov.。该新属在形态上与Pachistaegus de Lisle, 1967、Tumidaegus Bomans, 1988、Cherasphorus Bomans, 1988及Microlucanus Bomans & Bartolozzi, 1996相近，共同特征包括无飞翔能力以及雄性鞘翅末端存在第二性征异型。基于外部形态特征，对先前归入Gnaphaloryx Burmeister, 1847的多个物种进行了重新评估：将Gnaphaloryx furfuraceus (de Lisle, 1970)移入Cherasphorus，将G. pulverosus (Benesh, 1952)和G. stigmatifer de Lisle, 1974 移入Microlucanus，并将G. pollinosus de Lisle, 1973暂时移入Microlucanus。此外，基于共有形态特征，本文建议将新属Pelekysaegus gen. nov.与Pachistaegus、Tumidaegus、Cherasphorus和Microlucanus一同归入肥角锹族Aegini Huang & Chen。文中简要讨论了这些变动的分类学意义。

关键词：肥角锹族，新组合，第二性征，系统学，族级归类

Published online: 2026-02-05 23:22:46

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