Tadpoles.—Eight tadpoles were collected from a weedy temporary pond near Chepo, Panamá, in early June.
A typical tadpole in stage 35 of development (KU 104244) has a body length of 9.5 mm., tail length of 25.0 mm., and a total length of 34.5 mm. Other characters are as follows: depth of tail equal to length of body; body deeper than wide; distance between eye and nostril equal to distance between eye and spiracle; mouth anteroventral; median part of upper lip bare; rest of lip having one row of papillae; a few other rows of small papillae at corners of mouth; tooth rows 2/3; first upper row entire, second upper row interrupted medially, shorter than first; lower rows shorter than upper rows, third shortest; beak moderately robust; spiracle nearer eye than anus; anal tube short, aperture not extending to border of ventral fin; caudal musculature slender, extending to tip of pointed tail; dorsal fin extending onto body (Table 4).
Table 4.—Sizes of Tadpoles of Hyla foliamorta in Relation to Developmental Stages.
(Means in parentheses below observed ranges; measurements in mm.)
| Stage | N | Body length | Tail length | Total length |
| 25 | 2 |
5.0-5.2 (5.1) |
8.0-8.5 (8.3) |
13.0-13.7 (13.4) |
| 26 | 3 |
7.0-7.5 (7.2) |
12.0-12.4 (12.1) |
17.0-19.5 (18.6) |
| 28 | 2 |
6.5-7.0 (6.8) | 18.0 | 25.0 |
| 35 | 1 | 9.5 | 25.0 | 34.5 |
In life, yellow above, white below; caudal fin greenish yellow with black or gray reticulations; dark line from snout to eye; dark spot behind eye; tail unpigmented except for fine dark reticulations. In preservative body creamy white, transparent below with dark pigment above in some specimens.
Remarks.—Hyla foliamorta can be confused only with Hyla boulengeri. The differences between adults of these species were discussed in Remarks on H. boulengeri. The tadpoles of foliamorta have labial papillae on the lower lip and a stripe between the eye and the tip of the snout. By comparison the tadpoles of boulengeri have a bare lower lip and no stripe between the eye and the tip of the snout.
Distribution.—Hyla foliamorta inhabits the subhumid Pacific lowlands (elevations of less than 100 meters) of Central Panamá and Caribbean lowlands of northern Colombia (Fig. 4).
Specimens Examined.—Panamá: Panamá: 3 km WSW Chepo, KU 77164-9, 101573-5, 104243-4 (tadpoles); 6 km WSW Chepo, KU 77170, 101576-8; 1.5 km SW Naranjal, KU 77171, 77687 (skeleton); 2 km N Tocumen, KU 101579-83, 104349 (skeleton); 8 km NE Tocumen, KU 101584-92.
No specific locality: TNHC 24401.