Leptolalax ardens Rowley & Tran & Le & Dau & Peloso & Nguyen & Hoang & Nguyen & Ziegler 2016, sp. nov.

Leptolalax ardens sp. nov. Figs. 7D, 9A, 10. Holotype. VNMN 04707/AMS R 176454, adult male, calling on clay bank 1.5 m from headwaters of 1–2m wide rocky, medium gradient, high–flow stream in evergreen forest in Kon Ka Kinh National Park, Gia Lai Province, Vietnam (14.2258º N, 108.3230º E; 1162 m elevation, Fig. 1, Fig 9E). Collected at 19:30 h on 21 August 2011 Jodi J. L. Rowley, Vinh Quang Dau, Huy Duc Hoang, Luong Thi Nguyen, Tan Thanh Le, Dinh Djung, and Y H'Jun. Paratypes. AMS R 176452–176453, two adult males (both calling), and VNMN 04708/AMS R 176455– VNMN 04710/AMS R 176457, three adult males (not observed calling), collected on same date and locality as holotype. VNMN 04711 /AMS R 176458, adult female (gravid) and VNMN 04712 /AMS R 176459 adult male (calling), collected at 19:55 h on 23 August 2011 in evergreen forest in Kon Ka Kinh National Park, Gia Lai Province, Vietnam (14.2263º N, 108.3345º E; 1450 m elevation). UNS 00530/AMS R 176460–UNS 00532/ 176462, AMS R 176463, AMS R 176464, UNS 00533/176465, UNS 00534 /AMS R 176466, 176467, and NCSM 79650, 9 adult males, collected at night on 24 August 2011 in swampy area with small rocky stream in evergreen forest in Kon Ka Kinh National Park, Gia Lai Province, Vietnam (14.2197 º N, 108.3207 º E; 1041 m elevation). All specimens were collected by Jodi J. L. Rowley, Vinh Quang Dau, Huy Duc Hoang, Luong Thi Nguyen, Tan Thanh Le, Dinh Djung, and Y H'Jun. Etymology. The specific name “ ardens ”, meaning burning, fiery, shining, or brilliant, is used as an adjective in reference to the bold and conspicuous coloration of this species compared to other species in the group. Diagnosis. Assigned to the genus Leptolalax on the basis of the following characters: small size, rounded finger tips, the presence of an elevated inner palmar tubercle not continuous to the thumb, presence of macroglands on body (including supra–axillary, pectoral, femoral and ventrolateral glands), the absence of vomerine teeth, the presence of tubercles on eyelids, and anterior tip of snout ...