106 



NORTH AMERICAN ACRIDIDAE (oRTHOPTERA) 



The species is a marsh dweller, preferring areas of cat-tails, 

 high reeds and grasses. In such situations colonies are usually 

 located by hearing a sharp and peculiar ticking sound, made by 

 the males in flight. Individuals fly rapidly, usually curving 

 quickly back into the vegetation fiom which they have been 



Map 2. Showing distribution of Truxalis brevicornis (Johaniison) in 

 North America. 



flushed, where they often cling high above the ground. So 

 peculiar to such environment are they, that individuals will not 

 be seen in the regions where the species is very abundant, 

 unless the proper environment is visited. Like many semi-aquatic 

 insects, brevicornis appears to have the habit of migrating from 

 one favorable spot to another dui'ing the night. 



In the extensive marshlands of southern peninsular Florida, 

 and in the lowlands of the lower Mississippi region, this insect 

 is, naturally, more generally encountered than elsewhere in the 

 United States. 



