1 (94)_[Taxonomic Acts]_Taxonomic revision of the Dorcus curvidens and D. grandis species groups (Coleoptera: Lucanidae: Lucaninae) in the Indochinese Peninsula
Jing-Zhi LIN 林敬智 & Nguyen-Minh TUAN
Abstract: This study clarifies the systematics of the Dorcus curvidens and D. grandis species groups through integrated morphological and biogeographical analyses across Indochina. Within the D. curvidens group, the confirmed sympatry between D. curvidens babai Fujita, 2010 and D. curvidens curvidens (Hope, 1840) in southern Vietnam—combined with consistent morphological differentiation—invalidates the subspecific status of the former, supporting the elevation of it to species rank, D. babai Fujita, 2010 stat. nov. Regarding the D. grandis group, genitalia morphology between D. grandis grandis Didier, 1926 and Dorcus hopei (Saunders, 1854) indicates conspecificity. Thus, we reclassify D. grandis grandis as Dorcus hopei grandis Didier, 1926 stat. nov., and transfer D. grandis moriyai to Dorcus hopei moriyai Nagai, 2005 stat. nov.
Keywords: allopatric speciation, biogeography, Indochina, species delimitation, sympatry
摘要：本研究通过整合形态学与生物地理学证据，对中南半岛地区的Dorcus curvidens与D. grandis种团进行了系统厘定。在D. curvidens种团中，D. curvidens babai Fujita, 2010与D. curvidens curvidens (Hope, 1840)在越南南部确认为同域分布，结合二者稳定存在的外部形态差异，否定了前者作为亚种的地位，支持将其提升为独立物种Dorcus babai Fujita, 2010 stat. nov.。在D. grandis种团中，形态学证据表明D. grandis grandis Didier, 1926与Dorcus hopei (Saunders, 1854)为同种。因此，我们将D. grandis grandis重新归类为Dorcus hopei grandis Didier, 1926 stat. nov.，并将D. grandis moriyai移入 Dorcus hopei moriyai Nagai, 2005 stat. nov.。此项修订亦为越南地区Dorcus属物种提供了一个更新的物种名录。
关键词：异域分布物种形成，生物地理，中南半岛，物种界定，同域分布
Published online: 2025-12-14 22:47:26