biostudies-literatureUnknown12Mou X<h4>Background</h4><i>Mirostrellusjoffrei</i> Thomas, 1915 is the sole species within the genus Mirostrellus and its occurrence is notably rare in China. Despite the recent discovery of four previously unreported specimens from western Yunnan, China (Zaoteng River, 25.31°N, 98.80°E, altitude 1451 m) at the National Museum of Prague in the Czech Republic, comprehensive descriptions or detailed accounts of this species within China have yet to be published.<h4>New information</h4>During a field expedition within the Guanyinshan Provincial Nature Reserve, Yuanyang, Yunnan, China, a bat was captured using a mist net. The specimen was of moderate size, with its ventral surface presenting a golden-brown hue and its dorsal surface ranging from dark brown to obsidian. The forearm measured 37.31 mmBiodiversity data journale120923https://www.ebi.ac.uk/biostudies/studies/S-EPMC11077266biostudies-literatureNew record of Joffre's pipistrelle, <i>Mirostrellusjoffrei</i> (Chiroptera, Vespertilionidae), in China.PMC11077266Li SMou XLi BLuo XLi MfalseNew record of Joffre's pipistrelle, <i>Mirostrellusjoffrei</i> (Chiroptera, Vespertilionidae), in China.<h4>Background</h4><i>Mirostrellusjoffrei</i> Thomas, 1915 is the sole species within the genus Mirostrellus and its occurrence is notably rare in China. Despite the recent discovery of four previously unreported specimens from western Yunnan, China (Zaoteng River, 25.31°N, 98.80°E, altitude 1451 m) at the National Museum of Prague in the Czech Republic, comprehensive descriptions or detailed accounts of this species within China have yet to be published.<h4>New information</h4>During a field expedition within the Guanyinshan Provincial Nature Reserve, Yuanyang, Yunnan, China, a bat was captured using a mist net. The specimen was of moderate size, with its ventral surface presenting a golden-brown hue and its dorsal surface ranging from dark brown to obsidian. The forearm measured 37.31 mm2024-01-01T00:00:00Z20242026-04-08T19:41:47.506Z2026-04-08T14:20:04.751ZS-EPMC110772663872127210.3897/BDJ.12.e120923