Pristimantis ardilae, sp. nov. (Figure 4A) Holotype. An adult female (MCNUP-H 117, Figure 5A), collected on September 10, 2010, by Aldemar A. Acevedo, Karen Silva, and Rosmery Franco in the locality of San Antonio (7.162172 –72.25254; 612 m. a.s.l.), municipality of Toledo in the buffer zone of the Tamá National Natural Park (PNNT). Paratypes. Two adult females (MCNUP-H 121 and 157), and two adult males (MCNUP-H 166 and 253) collected at the type locality on the same date of the holotype. One adult female (MCNUP-H 163), and two adult females (MCNUP-H 673 and 247), Collected on May 3, 2013, by Aldemar A. Acevedo in the low area of the PNNT, La Vega (7.13612 –72.1843; 465 m. a.s.l.), municipality of Toledo in the buffer zone of the Tamá National Natural Park (PNNT). Definition and diagnosis. Pristimantis ardilae, sp. nov. is assigned to the genus Pristimantis based on molecular phylogenetic relationships (Figure 2) and its morphological characteristics (Lynch & Duellman 1997; Duellman & Lehr 2009). We assign the new species to the P. conspicillatus species group based on position obtained in our phylogenetic analyses (Figure 2), and following Lynch & Duellman (1997) and Padial & De la Riva (2009) for having: (1) skin on dorsum shagreen; venter smooth to finely areolate whitish or yellowish coloration, and some black spots on the throat; short dorsolateral folds in scapular region. (2) tympanum distinct, round, ~1/2–1/3 of the eye diameter; tympanic membrane and annulus present; supratympanic fold evident. (3) snout subacuminate in a dorsal view; rounded in profile (Figure 6A). (4) canthus rostralis defined, straight in dorsal view, slightly rounded in cross section; loreal region weakly concave. Nostrils slightly distinct, directed laterally. (5) upper eyelid without tubercles; cranial crests absent. (6) choanae small, round; dentigerous processes of vomers evident, with 5–6 teeth on the posterior margin; 12–16 premaxillary teeth. (7) vocal slits and nuptial pads present. (8) ED: 89% (females) and 96% (males) of the END. IOD: 81 % (females) and 78 % (males) of the ED. (9) THL ~51% (females) and 46% (males) of the SVL. TL ~ 58% (females) and 56% (males) of the SVL. FL ~ 47 % (females) and 46 % (males) of the SVL. HW ~ 37% of the SVL in both females and males. (10) ulnar tubercles absent. (11) relative lenght of fingers: II ≤ I FII; disks on FIII and FIV moderately expanded (state 2 according to Grant et al. 2006); relative size of the yuxtaposed fingers: II

Published as part of Acevedo, Aldemar A., Armesto, Orlando & Palma, R. Eduardo, 2020, Two new species of Pristimantis (Anura: Craugastoridae) with notes on the distribution of the genus in northeastern Colombia, pp. 499-523 in Zootaxa 4750 (4) on pages 502-510, DOI: 10.11646/zootaxa.4750.4.3, http://zenodo.org/record/3708838