Abstract
Two new species of the tyrine genus Megatyrus Hlaváč & Nomura, Megatyrus schuelkei Yin & Li, sp. n. (based on two males) and Megatyrus tengchongensis Yin & Li, sp. n. (based on one female), from Yunnan, Southwest China are described, illustrated and distinguished from allied species. The body size, form of maxillary palpi, male and female genital structures, and distributional patterns are used to separate the new species.
Highlights
Members of Megatyrus Hlaváč & Nomura are large (3.30–4.12 mm), rare pselaphine rove beetles inhabiting leaf litter of the forest floor
A recent study on the pselaphine collections of Michael Schülke, all collected during several expeditions to China, produced numerous undescribed species
After a comparative study on the types of all known species of Megatyrus, the present study reports two new species, as the second of a series dealing with Schülke’s material
Summary
Members of Megatyrus Hlaváč & Nomura (type species: M. menglianensis Hlaváč & Nomura) are large (3.30–4.12 mm), rare pselaphine rove beetles inhabiting leaf litter of the forest floor. After a comparative study on the types of all known species of Megatyrus (all in National Museum of Nature and Science, Tokyo, Japan [NSMT]), the present study reports two new species, as the second of a series dealing with Schülke’s material. The material treated in this study is housed in the following public institution and private collection: SNUC Insect Collection of Shanghai Normal University, Shanghai, China (Zi-Wei Yin) pcMS private collection of Michael Schülke, Berlin, German
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