250 



THE CANADIAN ENTOMOLOGIST. 



specimens from Ontario. Specimens from Point Pelee measure about the 



same as those from Indiana, according to Blatchley's figures, but those 



from Toronto, Lake Simcoe and other places further north are distinctly 



smaller, the smallest average size being found in the North Bay and 



Northern Muskoka specimens. My smallest specimens are from Lake 



Simcoe, but I have many from this locality that are nearly as large as 



those from Point Pelee, and there is a complete series of intermediate 



sizes. The smaller specimens are sometimes very difficult to distinguish 



from G. petmsylv alliens^ especially the males, in which the head is not 



always broader and more swollen than in that species. In the females 



the ratio of the length of the hind femora to that of the ovipositor is 



pretty constant. 



The following are measurements of average specimens from the 



localities given : 



Point Lake North 



Pelee. Simcoe. Goderich. Dwight. Bay. 



Pronotum 



Hind Femur, 



Body 



Ovipositor . . . 



Adults begin to appear about the second week in August. My 

 earliest captures are from Point Pelee, Aug. 7, 1901, where I found them 

 fairly numerous under boards and rubbish on the sand. These specimens 

 are all of large size, the ovipositor sometimes more than 20 mm. in length. 

 In September and October they become very numerous and congregate 

 in large numbers under e/ery chunk, log or board, under the loose bark 

 of old stumps, or in burrows in the sand. Late in the season they may 

 be seen in hundreds sunning themselves on fences close to the ground. 

 The eggs are laid in October, and, according to McNeill, in Northern 

 Illinois, hatch in the following July. None of the adults evet survive the 

 winter, the crickets which appear in the spring belonging to another 

 species. 



