Frogs by State

Frogs and Toads of Minnesota

Frogs and Toads of Minnesota

Frogs

Minnesota is home to a variety of different frogs from the tree frog family and the tree frog family.

True Frog Family – Ranidae

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The Wood Frog (Lithobates sylaticus) is easy to identify because of their raccoon mask around their eyes.

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Northern Leopard Frog (Lithobates pipiens)

The Northern Leopard Frog has large black dots down its back. It also has a dorsal ridge down its side.

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Green Frog (Lithobates clamitans)

The Green Frog is probably the most common frog in the Eastern United States. Best way to tell them apart from other true frogs below is the dorsal ridge on its back does not go all the way down its back.

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American Bullfrog (Lithobates catesbeianus)

American Bullfrog is the largest frog in Minnesota. They are very similar to Green Frogs but they don’t have a dorsal ridge down their back. It wraps around their tympanum.

mink_frog

Mink Frog (Lithobates septrentionalis) has a black marbled body.

Tree Frog family – Hylidae

Hylidae contains three different genera of frogs, the Tree frogs (Hyla), the Cricket frogs (Acris), and the Chorus frogs (Pseudacris).

peeper
Spring Peeper (Pseudacris crucifer)

The Spring Peeper has a noticable X on its back that no other frog in Minnesota has. It is incredibly small but loud. Its call is one of the first signs of spring.

Boreal Chorus Frog (Pseudacris maculata)

Boreal Chorus Frog is similar to the Spring Peeper in appearance and size but it has lines running down its back instead of an X like the Spring Peeper.

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Eastern Gray Tree Frog (Hyla veriscolor) and Copes Gray Tree Frog (Hyla chrysoscelis)

These two frogs are identical besides their calls and chromosome numbers. These tree frogs are also larger than the ones below. Also note that Gray Tree Frogs are not always gray and can be green.

Here is a video of some Eastern Gray Tree Frog males calling that I took

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Northern Cricket Frog (Acris crepitans) is a similar size of the Chorus frogs but lacks any real pattern on its back.

Toads

Minnesota has a few toads but from only the true toad family.

True Toads – Bufonidae

Canadian_Toad_-Anaxyrus_hemiophrys

The Canadian Toad (Anaxyrus hemiophrys) is found in the western part of the state.  The cranial crest of the Canadian Toad is fused and it touches the parotid gland. 

Great Plains Toad (Anaxyrus cognatus)

The Great Plains Toad looks a lot like the American Toad and the Canadian Toad but it has a V shaped bump between its eyes. It is only found in the far west side of the state so if you are close to Wisconsin and see a toad, its probably not a Great Plains Toad.

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American Toad (Anaxyrus americanus)

The American Toad is found throughout the state. It differs from the other toads because its parotid gland and cranial crest don’t touch.

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