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| [2, 7] Microdytes eliasi Wewalka & Okada, [3, 8] M. jeenthongi Okada & Wewalka, [4, 9] M. maximiliani Wewalka & Okada, [5, 10] M. sekaensis Okada & Wewalka, [6, 11] M. ubonensis Okada & Wewalka in Okada, Jaitrong & Wewalka, 2023. Scale bar: 1.0 mm. |
Abstract
The diving beetle genus Microdytes J. Balfour-Browne, 1946 in Thailand, Laos, and Cambodia is reviewed, and five new species are described: Microdytes eliasi Wewalka & Okada, sp. nov. (Thailand, Cambodia), M. jeenthongi Okada & Wewalka, sp. nov. (Thailand), M. maximiliani Wewalka & Okada, sp. nov. (Laos, China), M. sekaensis Okada & Wewalka, sp. nov. (Thailand, Laos), M. ubonensis Okada & Wewalka, sp. nov. (Thailand, Laos). Two species are the first country records: M. balkei Wewalka, 1997 (Laos, Cambodia) and M. wewalkai Bian & Ji, 2009 (Laos). For 12 and 8 species, the first provincial records from Thailand and Laos, respectively, are given. A checklist, a key to the 25 known Microdytes species from these countries, and habitus images and illustrations of diagnostic characters are provided. Distribution maps of the recorded species are presented, and species distribution patterns are also briefly discussed.
Keywords: Diving beetles, faunistics, key to species, Southeast Asia, taxonomy, zoogeography
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| Habitus of 2 Microdytes eliasi sp. nov., female, paratype 3 M. jeenthongi sp. nov., male, holotype 4 M. maximiliani sp. nov., male, holotype 5 M. sekaensis sp. nov., male, holotype 6 M. ubonensis sp. nov., male, holotype. Scale bar: 1.0 mm. |
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| Variation of markings of 7 Microdytes eliasi sp. nov. 8 M. jeenthongi sp. nov. 9 M. maximiliani sp. nov. 10 M. sekaensis sp. nov. 11 M. ubonensis sp. nov. Scale bar: 1.0 mm. |
Ryohei Okada, Weeyawat Jaitrong and Günther Wewalka. 2023. A Review of Microdytes J. Balfour-Browne, 1946 from Thailand, Laos, and Cambodia with Descriptions of Five New Species and New Records (Coleoptera, Dytiscidae). ZooKeys. 1159: 87-119. DOI: 10.3897/zookeys.1159.99218
