48 



HEKPETOLOGY OF MICHIGAN. 



and soon comes back to land. This species is probably, like Acris 

 grijUus, nnable to rlinib trees because of the small size of the disks 

 on the fingers and toes. The food consists of small insects. It 

 comes from its hibernation early. The sono; is very lond. When 



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V\ DOMINION OF CANADA 



ILLINOIS il 



c x t c * c e 



Fig. 14. Dii-tribution of Choropkilus n gritus. 

 Horizontal ruling, specimens examined: vertical ruling, reports only. 



croaking, the male sits upright in the water, supporting himself 

 with grass, leaves or twigs, and sings with the liead and vocal 

 pouch out of the water. When disturbed, he sits perfectly still and 

 does not resume his song until the source of alarm has passed. The 

 eggs are laid in ^farch or April in small masses containing from 

 five to twenty, and are attached to water plants. The devolopment 



