46 



THE AMERICAN MIDLAND NATURALIST 



Map 9. Ohio locality records and general 

 range of the Keeled Green Snake, Opheo- 

 Jrps aesihus, 



one struck repeatedly from a position in which the head and neck were looped 

 backward and upward and the mouth was held open in readiness for the next 

 advance. Specimens chmb readily and were found more often in an arboreal 

 habitat than not. The tail is somewhat prehensile. 



Almost all of the keeled green snakes examined were collected in the 

 summer and fall rather than in the spring; there is one record for April but 

 none for May. 



Records on the food of this snake include grasshoppers and crickets (Dit- 

 mars, 1936, 281); flies and other insects (Shaw, 1802, 551); insects (Hol- 

 brook, 1842, IV, 19 and Garman, 1892, 284). Captive specimens ate crickets 

 and grasshoppers and several were collected on vines and other plants on 

 which grasshoppers and other Orthoptera were present in abundance. 



A female from Scioto County, 23% inches in length, laid 4 eggs July 20, 

 1928. These measured 31 x 11, 29 x 10, 30 x 11 and 30 x 10 mm. (Walker, 

 1931, 10). Another female 291/4 inches in length, laid 4 eggs shortly after 

 it was captured in Clermont County, July 2, 1932; three additional ones also 

 were found in this specimen after it was preserved. The lengths of the eggs 



