Frogs and Toads of Indiana
Indiana has the standard Midwestern frogs and toads.
The Wood Frog is very distinct frog. It has a dark “racoon” like mask around its eyes and its brownish color.
The Green Frog and American Bullfrog looks the same but the Bullfrog can grow larger and they lack a dorsal ridge down their back.
The Crawfish Frog, Lithobates areolatus, gets its name from living in crawfish holes. Its has skin folds on the side and a small typanum. It also has a pair of vocal sacs for calling.
The Southern Leopard Frog has a white spot on its tympanum which can help differentiate the species from the other two. The Plains Leopard Frog is different from the Southern and Northern Leopard Frog because of its dorsal ridge. The Plains Leopard Frogs has a break and an indent near its butt while the North and South Leopard Frog just has a straight line.
Pickeral Frog looks like the leopard frogs but its spots are more rectangular than the leopard frogs.
Cope’s Gray Tree Frog and the Eastern Gray Tree Frog are identical besides their calls.
The Green and Gray Tree Frogs can be confused. The Gray Tree Frogs can also be green in color. Green Tree Frogs have a white line down their mouth.
There is only one cricket frog in Indiana. Cricket Frogs don’t have any distinct markings on their body.
The Western Chorus Frog has three lines that run down their back. They are a tiny species of frog.
The Spring Peeper is another small species of frog and looks similar to the Western Chorus Frog but it has a X shaped mark on its back.
Indiana has only two species of true toads – the Fowler’s Toad and the American Toad. They look very much a like but there are some differences in the back of the head.
The American Toad’s parotid gland is separated from the craniel crest while the Fowler’s Toad’s touches.
The Eastern Spadefoot toad is the only spadefoot toad in the state. Look for a spade on its rear legs to identify it.