Pickerel Frog (Lithobates palustris)
Description: 1¾ - 3 inches. Pickerel Frogs are brown or tan, with two rows of brown squarish or rectangular blotches running down the back, and brown blotches on the sides. There may be random blotches between the two rows on the back. The belly is white, and there is yellowish coloring in the groin area under the back legs. There is a light colored line on the upper lip.
Similar Species: Northern Leopard Frogs, Southern Leopard Frogs, and Plains Leopard Frogs all have more rounded spots, and may have green coloring in the groin area of the legs, but never yellow. Crawfish Frogs have a marble patterned lip rather than having a light line on it.