Two new species of Glischrochilus with taxonomic comments, new records from Asia, and a world checklist of the genus (Coleoptera: Nitidulidae)

Jelínek Josef, Hájek Jiří
Acta Entomologica Musei Nationalis Pragae 58(2): 567-576, 2018
Published online: 3rd December 2018
Published in print: 31st December 2018
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Abstract: Two new species of the genus Glischrochilus Reitter, 1873, subgenus Librodor Reitter, 1884: Glischrochilus (Librodor) pilula sp. nov. (Laos) and Glischrochilus (Librodor) ruzickai sp. nov. (China: Yunnan, Sichuan; Myanmar) are described, figured and compared with other species of the genus. Glischrochilus egregius (Grouvelle, 1895) is formally synonymised with G. egregius cyclops Jelínek, 1975, syn. nov. and G. egregius monticola Jelínek, 1975, syn. nov. – these two forms were established based on different body colouration; however, the study of extensive material revealed that it is variable independently of its geographic origin. The identity of Ips janthinus Reitter, 1877 from Tasmania (previously included in Glischrochilus) is discussed and the species is formally synonymised with Thallis ianthina Erichson, 1842 (Erotylidae). New country records from China, India, Laos, Thailand and Vietnam, or new Chinese provincial records are provided for 14 species. A world checklist of the genus Glischrochilus is appended.
Key words: Coleoptera, Nitidulidae, Glischrochilus, taxonomy, new species, new synonymy, new records, China, India, Laos, Myanmar, Thailand, Vietnam, Oriental Region, Palaearctic Region
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