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Hyla chrysoscelis is often confused with Hyla versicolor. The two species are actually identical except in distribution, call, and chromosomal count. H. chrysoscelis is diploid (N=2), where as H. versicolor is tetraploid, (N=4).
H. chrysoscelis is a relatively large treefrog that is usually gray or green in color. The exact coloration is determined by the activities and environment of individuals and can therefore vary within the species. All individuals, however, have bright orange or yellow bits of color spotted with black along their hind legs (Conant and Collins 1998).