Chorus Frogs Pseudacris maculata/triseriata

Description: Coloration: A small, brown or gray frog with three dark stripes running down the back. Though the dorsal color of most is light brown or gray, I have seen some individuals with a brighter, brick-colored dorsum. Ventral color is light. They can usually be distinguished from Spring Peepers, Pseudacris crucifer, by the "X" mark that the latter posesses.

Size: Chorus Frogs can attain lengths of just over one inch, although most adults are smaller (Minton 119).

Larvae: Tadpoles are small and dark, with some mottling. The color of the tail musculature grows lighter as it gets closer to the tip (Minton 118-119).

Eggs: Eggs are laid in masses of up to 240 eggs, usually attached to aquatic vegetation (Minton 121).

Distribution: Chorus Frogs can be found throughout the state (Minton 119).

Activity: This species is difficult to find outside of the breeding season, though it can occasionally be heard calling during summer or fall rains.

Breeding Season: Chorus Frogs begin calling in February and continue through April (Minton 120).

Taxonomy: Chorus Frogs belong to the genus Pseudacris, which also consists of Spring Peepers (Pseudacris crucifer) in Indiana. Chorus Frogs are in the family Hylidae.

Ecology: Habitat: This species inhabits wet meadows and swamps. The can often be found around temporary pools of water (Minton 119-120).

Feeding: Chorus Frogs feed on a variety of invertebrates, from spiders to beetles.

Breeding: Chorus Frogs breed from February to late April in shallow water, often temporary pools. Presence of some aquatic vegetation seems important to breeding site selection (Minton 120).

Call: Minton describes the call of these frogs as a "creeek-crick." This call becomes high pitched and louder through its duration--just two or three seconds (Minton 120). A chorus usually starts with one or two individuals, but when it reachest its loudest point, this chorus can be nearly deafening.


Brodman, R. 2003. Amphibians and Reptiles from Twenty-three Counties of Indiana. Proceedings of the Indiana Academy of Science 112.1:43-54.

Conant, R. and J. T . Collins. 1998. Reptiles and Amphibians of Eastern and Central North America. Third Edition, Expanded. Houghton Mifflin, New York, New York

Minton, S. A. Jr. 2001. Amphibians and Reptiles of Indiana. Indiana Academy of Science, Indianapolis, IN

Distribution Map
Distribution map of Chorus Frogs (Pseudacris maculata/triseriata)