FAMILY YIL— (;RYLLID.45. 



267 



holes in the ground and under stones, 

 or, emerging from these retreats, run 

 through the grass in seareh of food. At 

 the season indicated above, the male 

 crickets spend much time at or near the 

 entrance of their burrows, making their 

 peculiar calls. So intent upon this are 

 they, that b\' moving quietly one can 

 approach sufhciently near to watch 

 them carefully. And even when they 

 are disturbed they retreat into their 

 holes only for a short time, if all remains 

 still. At night they can be observed b}' 

 means of a lantern, as light does not dis- 

 turb them. In order to understand the 

 manner of making these calls, it is neces- 

 sary to study the structure of the tegmina, which in the males 

 (Fig. 175, b) differ greath' from the simple form seen in the 



Fig. 176 — Gryllus do- 

 mesticus, female, origi- 

 nal. 



Fig. 175, — Oryllus nssimilis: a, wing of female; b, wing of male, showing the 

 mure irregular and coarser veins. Enlarged. From "Household Insects," by I'lv. 

 ot Entomology, Dept. Agriculture. 



female ( Fig. 175, aj." As has been mentioned elsewhere, only 

 the tegmina of the males are used to produce sounds. When 

 the cricket wnshes to make his call, he elevates his tegmina 



