New species records from Buton Island, South East Sulawesi, including regional range extensions

Peninsular Malaysia is currently thought to host the highest biodiversity of Old World bats of any region, with 110 species recorded. However, the availability of literature to facilitate a similarly thorough species checklist is not as readily available for other parts of Southeast Asia, including Sulawesi, Indonesia. Here we highlight 13 new species records from the long-term bat monitoring programme on Buton Island, South East Sulawesi, expanding on Pa erson et al.s (2017) previous inventory for this study area. One species (Hipposideros galeritus) is a new record for Sulawesi, and seven species (Cynopterus c.f. minutus, Rouse us celebensis, Megaderma spasma, Hipposideros c.f. ater, Myo s c.f. hors eldii, Myo s c.f. moluccarum, and Myo s c.f. muricola) are new records for Buton Island. The remaining ve species (Thoopterus nigrescens, Dobsonia exoleta, Acerodon celebensis, Mosia nigrescens, and Mops sarasinorum) have been previously reported from Buton but were missing from the prior site inventory. We also correct a probable mistaken species iden ca on in the previous inventory (Cynopterus cf. haecheilus, now iden ed as Thoopterus nigrescens). This brings the total of con rmed species detected on Buton to 35, equa ng to 46.7% of all Sulawesis known bat diversity in c. 3% of its land area. We highlight Buton as a key area for conserving the regions bat species.