Hyloxalus delatorreae

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(1) SVL, male, 21.2 mm; females, 23.5-24.1 mm (x = 23.8; n = 2); (2) disc on Finger III expanded; (3) Finger I usually shorter than Finger II; (4) fringe absent on Finger II; (5) disc on Toe IV expanded; (6) fringe absent on Toe IV; (7) outer tarsal fold absent; (8) toe webbing absent; (9) dorsolateral stripe absent; (10) oblique lateral stripe present, extending to eye; (11) ventrolateral stripe absent; (12) discrete markings absent on gular-chest region, two small black spots ventrally at base of arm; (13) abdomen white in females, abdomen blackish with light spots in male; (14) Finger III not swollen in males; (15) testes white.Colostethus maquipucuna is compared with those species that have a complete white oblique lateral stripe, lack two discrete marks on the gular-chest region, have a reticulate or spotted venter, and possess two small spots at base of arms ventrally (C. delatorrei ). Colostethus maquipucuna is distinguished from C. delatorrei by its larger size, a wider oblique lateral stripe and by lacking scattered dark marks on dorsal surfaces of thighs. 

Description of holotype.—Adult female, 23.5 mm in SVL; body moderately robust; head longer than wide; head length 37.8% SVL; head width 34% SVL; snout bluntly rounded in dorsal view, and in profile; loreal region barely concave; nostrils slightly protuberant laterally; eye-nostril distance half length of eye; supratympanic fold diffuse; diameter of tympanum 53% length of eye. Forelimbs moderately long; Finger I slightly shorter than second; fingers unwebbed, lacking lateral fringes; terminal discs expanded; subarticular tubercles small, low, round; palmar tubercle moderately large, rounded, barely elevated; thenar tubercle moderately small, elliptical. Hind limbs moderately robust; tibia length 53.2% SVL; foot length 48.9% SVL; outer tarsal fold absent; inner tarsal fold sigmoid on distal two thirds of tarsus; outer metatarsal tubercle small, oval, less than half size of elliptical inner metatarsal tubercle; toes unwebbed, lacking lateral fringes; terminal discs expanded, about twice width of digits; subarticular tubercles small, round; supernumerary tubercles absent.Skin of dorsum of body and limbs smooth except slightly pustular in pelvic region; skin on flanks and venter smooth; anal opening directed posteroventrally at midlevel of thighs; anal sheath moderately long; tongue narrowly triangular, free posteriorly for about two thirds of its length. Color in preservative: Dorsum brown with dark brown marbling. Two black dorsolateral stripes extending from anterior borders of eyes to anal region; dorsum of snout uniform pale brown; black band extending entire length of flank; broad cream oblique lateral stripe from upper eyelid to groin; upper lip creamy white; narrow brown stripe along entire border of lower lip; dorsal surfaces of forearms cream with minute gray stippling; short brown stripe on anterior surface of upper arm; brown stripe on posterior surface of upper arm extending to ventral surface of forearm; dorsal surfaces of hind limbs cream with minute gray spotting, brown stripes on anterolateral and dorsal surface of thighs; brown spots in anal region and one spot on posterolateral dorsal surface of thigh; brown spots on outer surface of shank, diffuse transverse bars on dorsal surfaces of fingers, brown spots on dorsal surfaces of toes; throat, chest, abdomen, and groin cream; small gray spot at the base of forearms; ventral surfaces of arms, tarsi, and palmar and plantar surfaces brown; tips of digits brown; brown marks on outer surface of shank.Measurements of holotype (mm): SVL 23.5, tibia length 12.1, foot length 11.5, head length 8.9, head width 8.0, eye diameter 3.2, eye-nostril diameter 1.6, tympanum diameter 1.7.  Variation.—Structurally, the three specimens are similar; the male (KU 202881) is smaller than the females and has vocal slits and a vocal sac. The male has diffuse dark reticulations on the abdomen, blackish marks on the throat, and an oval white mark on the dorsal surface of the forearm.Color in life: Black dorsally and laterally, with a bright yellow dorsolateral stripe; legs orange, venter yellow (W. E. Duellman, field notes, 2 April 1984).

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