Figure 1

Map showing the distribution of members of the Locustella mandelli complex, with localities from which we have sound recordings and/or DNA samples (latter underscored; details in Additional file 1 : Table S1). The bicoloured red + yellow circles are places where both L. chengi sp. nov. and L. mandelli have been found in sympatry; bicoloured orange and yellow circles are places where the subspecific status is uncertain. Chinese provinces: FJ – Fujian, GD – Guangdong, GX – Guangxi, GZ – Guizhou, HB – Hubei, HK – Hong Kong, HN – Hunan, JX – Jiangxi, SC – Sichuan, SX – Shaanxi, TB – Tibet, YN – Yunnan.