Abstract:Piebaldism, a phenotype of congenital chromatic disorder, is rare in the Chiroptera. Here reported are four piebald bats from three species in three provinces of China during May and August 2016. First, we captured a pregnant female Fringer Long-Footer Myotis (Myotis fimbriatus) with piebaldism on its back at a canal cave in Neixiang County, Henan Province (Fig. 1a, b). Second, a pregnant female Schreber′s Long-Fingered bat (Miniopterus fuliginosus), captured at a cave in Zhashui County, Shanxi Province, exhibited some piebaldism on the back, tail membrane, tail bone and thigh bone (Fig. 1c, d). Finally, two male Chestnut Myotis (Myotis badius), captured in Jinning County, Yunnan Province, had slight piebaldism in left side of the back (Fig. 1e) and in the side of back and neck, respectively (Fig. 1f). The piebaldism of M. fuliginosus and M. badius is reported for the first time in China. Moreover, morphological parameters (e.g. body mass and forearm length) were measured with a digital caliper (TESA-CAL IP67, Switzerland) and electronic balance (MH. DIAMOND I2000). All bats were immediately released into their roosts after taken photos (HDR-CX760E, SONY). SPSS (SPSS Statistics version 17, IBM) was used to test the difference in morphological characteristics between piebaldism and health individuals. Analyses showed that the body mass of M. fuliginosus with piebaldism was larger than that of normal individual, and the forearm length of M. badius with piebaldism was larger than that of normal individual, the other morphological parameters of bats with piebaldism, however, were within the normal range (Table 1). Therefore, our results suggested that piebaldism had no serious influence on its normal survival and reproduction. This study provides the scientific basis for further research on physiological ecology of piebald bats.