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Range DescriptionCerthia tianquanensis was previously thought to occupy a relatively small range in China, with records from just five clustered localities in the mountains west of Chengdu and Leshan: Labahe Natural Reserve, Tianquin County; Dayi County; Shuanghe town, Ebian County; Wawu Shan, Hongya County, and Wujipung, Wolong Biosphere Reserve (Anderson 2003, Martins et al. 2003). However, it was recently discovered at Jiuzhaigou Nature Reserve, some 200 km north of the previously known range (Rheindt 2004). Subsequently, the species was also confirmed to occur at nearby Taibaishan (B. Anderson in litt. 2005), and also in the Quinling Mountains, Shaanxi (M. Rank in litt. 2005). Within this small area, it is often regarded as uncommon and it may also be patchily distributed because it seems to be confined to stands of old conifers (Emei fir Abies fabri), but it has probably been much overlooked (Rheindt 2004). Still, the only certainly viable population exists at Wawu Shan (Yue-Hua Sun 2009).