Dendropsophus manonegra sp. nov. (Figs. 1–3) Holotype. MHUA-A 7336; an adult male from kilometer 60 road Florencia — Altamira, 1° 47' 42.2'' N, 75° 38' 48.7'' W, 1040 m a.s.l., vereda Sucre, municipio de Florencia, departamento de Caqueta, Colombia, collected on November 14, 2010 by Marco Rada. Paratypes. All adults. MHUA-A 7337, female; MHUA-A 7668, male; both with same data as the holotype. ICN 23973–24000; 28 males from kilometer 19 of the road Florencia —El Paraíso, 740 m a.s.l., vereda El Paraíso, municipio de Florencia, departamento de Caquetá, Colombia, collected by Pedro Ruiz, John Lynch and Ricardo Sánchez on May 28, 1990. ICN 39875, 39877–80; five males from Serranía de los Churumbelos, mouth of the Rio Intiyaco on the Rio Caquetá, 1º 5' 57.7'' N, 76º 34' 5.8'' W, 400 m a.s.l., municipio de Mocoa, departamento de Putumayo, Colombia, collected by José V. Rueda (unknown date). Referred specimens. TG 1815; an adult male from kilometer 28 of the road Florencia — Suaza, municipio de Florencia, departamento de Caquetá, Colombia, 800 m a.s.l.; TG 1850; an adult male from kilometer 20 of the road Florencia — Suaza, municipio San José de la Fragua, departamento de Caquetá, Colombia, 720 m a.s.l.; both vouchers deposited at ICN but not yet catalogued. Diagnosis. We assigned the new species to the genus Dendropsophus on the basis of our phylogenetic results (see below). Furthermore, we assigned it to the Dendropsophus leucophyllatus species group based on the close phylogenetic relationship with D. bifurcus and its relatives. Males and females of the new species exhibit a pair of oval pectoral glands, a character that is considered a putative morphological synapomorphy of the D. leucophyllatus species group (Cochran & Goin 1970; Duellman, 1970; Faivovich et al. 2005). Dendropsophus manonegra sp. nov. (Figs. 1–3), can be distinguished from all its congeners by the following combination of traits: (1) SVL in males 22.7–25.1 mm (N = 12), female (N = 1) SVL of 32.5 mm; (2) very short snout, approximately 28% of head length, truncate in dorsal and lateral views; (3) head wider than long; (4) canthus rostralis straight and indistinct, loreal region flat; (5) tympanum rounded, tympanic annulus distinct except for its uppermost part, tympanic membrane indistinct; (6) vomerine teeth absent; (7) skin on dorsal surfaces smooth; (8) axillary membrane present, reaching the first proximal third of the arm; (9) finger discs round, about five thirds of the width of the finger; (10) webbing formulae of fingers I – II (1-–1 1/2) – (2 1/3–2 1/2) III (2-–2) – (1 1/2–2) IV, webbing formulae of toes I (1-–1) – (1–1 3/4) II (1–1+) – (1 1/2–2) III (1-–1) – (1 1/2–1 3/4) IV 2 – (1-–1+) V; (11) oval pectoral glands present; (12) inner tarsal fold present; (13) tarsal, heel, and calcar tubercles absent; (14) dorsum ground color brown with black spots and with dorsal yellow light markings consisting of a triangular head blotch connected to narrow or broad dorsolateral bands along the anterior two thirds of body (composing an inverted U-shape), often connected posteriorly at the groin, producing a pattern resembling a frame; (15) one yellow light blotch on heel present; (16) ventral surfaces white, being the mental region smoky gray; (17) digits, webbing, axillary membranes, groin, and hidden surfaces of arms and legs bluish-black; (18) iris coppery brown with fine brown reticulations and a narrow homogeneous, non reticulated copper ring around the pupil. Comparison with other species of the D. leucophyllatus species group. The new species is distinguishable from all species of the Dendropsophus leucophyllatus group by having, in life, bluish-black coloration on digits, webbing, axillary membranes, groin and hidden surfaces of arms and legs (Figs. 1, 2). This color pattern fades to grayish black in preservative. All other species of the D. leucophyllatus group have yellow, orange, pink or red surfaces in life, fading to cream in preservative. Dendropsophus manonegra sp. nov. is distinguishable from all other species of the group by the absence of vomerine teeth (present in other species of the D. leucophyllatus group, except in D. bifurcus) and a single blotch over the heel (D. elegans and D. leucophyllatus having a pair of blotches, reticulated blotches, or a blotch that covers the dorsal surface of the shank completely). From D. sarayacuensis and D. rossalleni, D. manonegra sp. nov. can be distinguished by the presence of a triangular interorbital blotch (“T-shaped” in D. sarayacuensis; two small, not connected, transversal bars in D. rossalleni). The dorsolateral bands of D. manonegra sp. nov. are regular, homogeneously filled, with straight borders while D. ebraccatus have irregular dorsolateral bands that can be interrupted by brown blotches. Many specimens of D. triangulum have and uniform dorsal color pattern, sometimes punctuated by one or two small brown blotches or even, reticulated—the favosa pattern (D. manonegra sp. nov. exhibit the frame pattern), the pectoral glands of D. triangulum are large and in contact or nearly so (pectoral glands are more inconspicuous and distinctly apart in D. manonegra sp. nov.). Dendropsophus manonegra sp. nov. males (22.7–25.1 mm) are smaller than males of D. anceps (31.0–40.0 mm, Lutz 1973), D. leucophyllatus (30.4–36.0 mm, Duellman 1978; Caldwell & Araújo 2005), and D. salli (25.4– 30.1 mm, Jungfer et al. 2010) and are larger than males of D. rossalleni (19.0– 22.3 mm, De la Riva & Duellman 1997). The single known female of D. manonegra sp. nov. (32.5 mm) is smaller than females of D. anceps (39.0– 42.0 mm, Lutz 1973), D. leucophyllatus (37.7–50.0 mm, Caldwell & Araújo 2005; Lescure & Marty 2000), D. sarayacuensis (34.0–37.0 mm, Rodriguez & Duellman 1994), and D. triangulum (36.0–42.0 mm, Rodriguez & Duellman 1994). The female of D. manonegra sp. nov. is larger than females of D. rossalleni (28.2–28.7 mm, De la Riva & Duellman 1997). Description of the holotype. An adult male of 23.7 mm SVL. Head as wide as body, slightly wider than long, head lenght representing 33% of SVL. Snout very short, approximately 28% of head length, truncate in both dorsal and lateral views. Internarial region subtly depressed. Nostril openings directed anterolaterally, not protuberant. Loreal region flat. Canthus rostralis indistinct. Lips thin and barely flared. Eye large, ED 1.6 times the distance between the eye and nostril, palpebral membrane translucent, with brown pigmentation at its border. A faint supratympanic fold, extending posteriorly from the posterior corner of the eye to an area above the anterior part of the arm insertion. Tympanum round, slightly wider than high, directed laterally. Tympanic annulus distinct, except for the uppermost part (about 1/4 of its diameter) that is obscured by the supratympanic fold; its diameter equals the diameter of the digital disc of finger III and is only slightly smaller (84%) than the distance between the eye and the tympanum. Digital discs round. Digital disc of finger III about 1.6 to 1.8 times the width of the finger. Relative length of fingers I

Published as part of Rivera-Correa, Mauricio & Orrico, Victor G. D., 2013, Description and phylogenetic relationships of a new species of treefrog of the Dendropsophus leucophyllatus group (Anura: Hylidae) from the Amazon basin of Colombia and with an exceptional color pattern, pp. 447-460 in Zootaxa 3686 (4) on pages 449-454, DOI: 10.11646/zootaxa.3686.4.3, http://zenodo.org/record/220557