Figure 6

Locustella chengi sp. nov. (a–f) and L. mandelli mandelli/melanorhyncha (g), all adults, identified as males by song (and prominent cloacal protuberance and lack of brood patch in a–d and g, not checked in e–f). a: Laojun Shan, Sichuan, China, 1350 m, 27 May 2014 (IOZ19663; same individual as in Figures 5 and 10a) (Per Alström); b: Longcangguo, Sichuan, China, 1785 m, 27 May 2013 (IOZ19662; same individual as in Figures 5 and 10b) (Per Alström); c: Laojun Shan, Sichuan, China, 1040 m, 27 May 2014 (IOZ19665; same individual as in Figure 10d) (Per Alström); d: Longcangguo, Sichuan, China, 1810 m, 26 May 2013 (IOZ19661); e: Badagong Shan, 1615 m, 5 June 2010 (same individual as IOZ19989 in Figure 14) (Paul J. Leader); f: an individual with exceptionally strongly marked throat/breast, Badagong Shan, 1500 m, 6 June 2010 (same individual as IOZ 19991 in Figure 14) (Paul J. Leader); g: Laojun Shan, Sichuan, China, 1350 m, 27 May 2014 (IOZ19664; same individual as in Figures 10d and 14) (Per Alström).