Revision of the genus Metalycaeus Pilsbry, 1900 in the Himalayan region with description of five new species (Gastropoda, Cyclophoridae, Alycaeinae)
Abstract
The Metalycaeus species of the Himalaya and Myanmar are revised. Five new species are described: Dicharax zayai Páll-Gergely & Meng sp. nov., Metalycaeus gittenbergeri Páll-Gergely & Aravind sp. nov., M. tuyae Páll-Gergely & Meng sp. nov., M. kempi Páll-Gergely & Aravind sp. nov. and Metalycaeus adiorum Páll-Gergely & Aravind sp. nov. Ten taxa are moved to synonymy: Alycaeus macgregori Godwin-Austen, 1914 and A. burtii var. yetayensis Godwin-Austen, 1914 are synonyms of M. bhutanensis (Godwin-Austen, 1914); A. luyorensis Godwin-Austen, 1914 is a synonym of M. dikrangensis (Godwin-Austen, 1914); A. lohitensis Godwin-Austen, 1914 is a synonym of Metalycaeus brahma (Godwin-Austen, 1886); M. karmademaae Gittenberger, Choki Gyeltshen & Kezang Tobgay, 2024 is a synonym of M. crenulatus (Benson, 1859); A. subinflatus Godwin-Austen, 1914 and A. varius Godwin-Austen, 1914 (replacement name: M. suhajdai Páll-Gergely, 2020) are synonyms of M. beddomei (Godwin-Austen, 1914); A. toruputuensis Godwin-Austen, 1914 is a synonym of M. mundulus (Godwin-Austen, 1914); and A. polygonoma Blanford, 1862 and A. neglectus Godwin-Austen, 1914 are synonyms of M. stylifer (Benson, 1857). A neotype is designated for Dicharax zayuensis (Zhang, Chen & Zhou, 2008).
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