Oreobates lehri ( Padial, Chaparro and De la Riva, 2007 )

Padial, Jose M., Chaparro, Juan C., Castroviejo-Fisher, Santiago, Guayasamin, Juan M., Lehr, Edgar, Delgado, Amanda J., Vaira, Marcos, Teixeira, Mauro, Aguayo, Rodrigo & Riva, Ignacio De La, 2012, A revision of species diversity in the Neotropical genus Oreobates (Anura: Strabomantidae), with the description of three new species from the Amazonian slopes of the Andes, American Museum Novitates 2012 (3752), pp. 1-56 : 38-39

Oreobates lehri ( Padial, Chaparro and De la Riva, 2007)

Figures 5C–D, 13B

Eleutherodactylus lehri Padial et al., 2007: 115 .

Oreobates lehri: Padial et al., 2008a: 759 .

DIAGNOSIS: A slender Oreobates (SVL of adult females 31.0–32.9) characterized as follows: (1) skin on dorsum, flanks, and dorsal surfaces of hind limbs coarsely shagreen, granules regular in size, small, round or conical, few of them slightly enlarged; venter smooth; posterior surfaces of limbs areolate; discoidal fold present; dorsolateral folds irregular, formed by granules, or absent; postrictal glands present, large, prominent; (2) tympanic membrane and annulus distinct, their length about half length of eye; supratympanic fold present, conspicuous; (3) head large, as long as wide; snout round in dorsal and lateral views; canthus rostralis straight in dorsal view, round in section; (4) cranial crests absent; upper eyelid bearing by small granules; (5) dentigerous process of vomers large, situated posteromedial to choanae; (6) males with vocal slits but no nuptial pads; (7) hands with long, slender fingers, finger I shorter than finger II; subarticular tubercles round to conical, well developed; supernumerary tubercles round to conical, smaller than subarticular tubercles; terminal discs of fingers round, not enlarged, lacking circumferential grooves and ungual flap; lateral fringes and keels on fingers absent; (8) ulnar tubercles absent, round, low; (9) no tubercles on heel and tarsus; (10) inner metatarsal tubercle ovate to round, prominent; outer metatarsal tubercle smaller, round, prominent; supernumerary tubercles absent; (11) toes long and slender (foot length 60–70% SVL), lacking lateral fringes or keels (or very weak at base of toe III), webbing absent; fifth and third toes reaching midpoint of second subarticular tubercle of toe IV; tips of toes moderately enlarged, rounded, with ungual flap not indented; (12) axillary glands present; (13) dorsal coloration in life olive green with dark brown to black marks, outlined with pale green, in occipital region and middorsum; belly yellowish white, throat gray with brown mottling or reticulations on anterior margin, hidden surfaces of hind limbs and groin orange.

COMMENTS: This species is now restricted to Cordillera Vilcabamba, where it is known from two localities in Departamento Cusco (map 2), the type locality (Apurimac River Valley , Camisea Natural Gas Pipeline , Wayrapata Camp , 2445 m, 12° 50′ 10″ S, 73° 29′ 43″ W) and from 40 km from Vilcabamba , ca. 2850 m, (13°02′51.1″ S, 072°55′29.4″ W) ( MUSM 27616 ). The localities are separated by an airline distance of ca. 60 km. Originally this species was discovered from a series of specimens collected at the first locality and deposited at USNM in Washington. One of the authors ( EL), collected a specimen at the second locality, which has been sequenced ( fig. 1 ), and which permitted the description of the coloration in life (fig. 5C–D) .

Figures

FIG. 1. Main tree (left and right pages): one of 16 equally optimal maximum parsimony trees with branch length depicting phylogenetic relationships of species of Oreobates (3936 steps; differences with the strict consensus only affect unresolved intraspecific relationships). Schematic tree (far left): maximum likelihood best tree topology for 145 terminals of Strabomantid frogs inferred from the 16S rRNA barcode fragment of amphibians (see methods). Numbers above nodes for both trees are maximum parsimony bootstrap values followed by maximum likelihood bootstrap values.