Ze-En CHEN 陈泽恩, Jia-Lu DING 丁稼璐 & Zhi-Teng CHEN 陈志腾

Abstract: A new species of the anisolabidid earwig genus Epilandex Hebard, 1927, Epilandex guangxiensis sp. nov., is described from Guangxi Zhuang Autonomous Region, southern China. The new species is characterized by its relatively small body, well-developed tegmina and hind wings, lateral carinae on abdominal tergites 6–8, asymmetrical male forceps with finely serrated inner branches, and elongate external parameres. It is most similar to E. acuminata Srivastava, 2003 from Hong Kong, China, and E. vignai Kočárek, 2021 from Sulawesi, Indonesia, but differs in the proportions of the head, antennal segments, mesosternum and metasternum, the shape of the left forceps branch, and the relative length of the genital lobe. The male genitalia are further characterized by elongate, gradually tapering external parameres and a slender, sinuate virga reaching the subapical region of the external parameres. The new species represents the first record of Epilandex from mainland China and extends the known distribution of the genus northward within the Oriental region.

Keywords: Anisolabidinae, biodiversity, earwig, taxonomy, new taxon

摘要：本文记述了采自中国南方广西壮族自治区的肥螋科Anisolabididae长肥螋属Epilandex Hebard, 1927一新种，广西长肥螋Epilandex guangxiensis sp. nov.。新种特征为：体型较小；前翅和后翅发达；腹部第6–8节背板具侧隆线；雄性尾铗不对称，内缘具细锯齿；阳茎基侧突极长。新种与中国香港的尖突长肥螋E. acuminata Srivastava, 2003和印度尼西亚苏拉威西的维尼亚长肥螋E. vignai Kočárek, 2021最为相似，但可通过头部、触角节、中胸腹板和后胸腹板的比例，左侧尾铗的形状，以及雄性生殖叶的比例等特征与二者相区分。此外，新种雄性生殖器的阳茎基侧突细长，逐渐向端部变细；阳茎端刺细长、波状，并延伸至阳茎基侧突的亚端部。该种为Epilandex属在中国大陆的首次记录，并将该属的已知分布向东洋区北部扩展。

关键词：肥螋亚科，生物多样性，蠼螋，分类学，新分类单元

Published online: 2026-09-19 18:08:23

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