Frogs and Toads of Delaware
For a small state, Delaware is home to a variety of frogs and toads.
There are two different families of frogs, tree frogs and true frogs in Delaware.
Spring Peeper (Pseudacris crucifer) has a noticeable x mark on its back.
Gray Tree Frog (Hyla veriscolor) and Cope’s Gray Tree Frog (Hyla chrysoscelis) are basically identical species. The difference between them is the calls. You can identify them from the others because of the yellow or orange marks on their back legs.
Barking Tree Frog (Hyla gratiosa) has rough skin compared to the Green and Gray Tree frogs.
Green Tree Frog (Hyla cinerea) has a white line down the mouth and side.
Northern Cricket Frog (Acris crepitans) is the only cricket frog in the state. They have no distinct markings on their back.
American Bullfrog (Lithobates catesbianus)
The Green Frog and American Bullfrog looks the same but the Bullfrog can grow larger and they lack a dorsal ridge down their back.
Southern Leopard Frog (Lithobates sphenocephalus)
Pickeral Frog (Lithobates palustris)
The Pickeral Frog and the Southern Leopard Frog look very much a like. The Pickeral Frog has more square shaped spots on its back while the Southern Leopard frog has more circular ones.
Carpenter Frog, Lithobates virgatipes, is identifiable because of their brown color and two yellow lines that run down their back.
Wood Frog (Lithobates sylativus) has a raccoon mask around its face which no other frog in the state has.
Fowler’s Toad (Anaxyrus fowleri)
This is the best pic to tell apart the Fowler’s and American Toad.
Eastern Spadefoot Toad (Scaphiopus holbrookii) is the only spadefoot toad in the state so just look for the toad with a spade on its rear feet.
Eastern Narrow Mouthed Toad (Gastrophryne carolinensis) is the only narrowed mouth toad in the state. Their small, pointy head is a key characteristic of the species.