NO. l6.] ORTHOPTERA OF CONNECTICUT. 65 



2. No spine between the front pair of legs 3 



A prominent conical spine between the front pair of 



legs ACRIDINJE p. 106 



3. Face usually very oblique ; foveolae usually well de- 



veloped ; median carina of the pronotum never raised 

 in the form of a crest or with more than one notch 



TRYXALIN^E p. 71 



Face or front of the head more vertical and more 

 rounded than above; foveolae not well developed; 

 median carina of pronotum usually raised in the form 

 of a crest and usually cut by more than one notch 



CEDIPODINyE p. 86 

 TETTIGIN^E. 



The Tettiginse or " grouse locusts," as they are often called, 

 are the smallest members of the Acridida. At first glance they 

 might be taken for immature grasshoppers, but they can be 

 readily distinguished by the pronotum which extends to or beyond 

 the extremity of the abdomen. The tegmina are only rudi- 

 mentary and consist of small scales at the base of the wings. 

 The wings are usually large and well developed. No pads are 

 present between the claws of the tarsi. 



The grouse locusts are the only members of our Acrididae 

 which pass the winter as adults, hibernating under rubbish, fence 

 rails, pieces of bark, etc. They are, therefore, the first Acri- 

 dians to appear early in spring, being most numerous at this 

 season and in the fall, though some species can be found nearly 

 every month in the year. The dry, sunny hillsides of a pasture 

 seem to be the favorite haunt of some species, while others 

 prefer moist, boggy land or the margins of lakes and streams. 

 Their color and variable markings harmonize perfectly with the 

 surroundings, making them very inconspicuous. Indeed, it is 

 seldom that they are seen unless one is searching for them. 



Key to Genera. 



1. Antennas with 12 to 14 joints 2 



Antennae with 21 or 22 joints Tettigidea p. 70 



2. Median carina high, crest-like, arched longitudinally. 



Superior lateral sinus of pronotum shallow, about 



one-half as deep as the inferior (Fig. 6) 



Nomotettix p. 66 



5 



