HOW TO KNOW THE IMMATURE INSECTS 



ORDER ORTHOPTERA 



la. Hind tarsi with 1 segment or obsolete. 



Fig. 150 Subfamily Tridactylinae, GRYLLIDAE 



They are pigmy crickets, scarcely 

 more than 10 mm. long, with the fore 

 tibiae fossorial and the hind femora 

 enlarged for jumping. The terminal 

 end of hind tibiae provided with 

 movable elongated plates called ma- 

 tatory lamellae. They inhabit damp 

 places and near water. They can 

 also burrow into sand. 



Fig. 150. Ellipes minuta Scudder. 



lb. Hind tarsi with more than 1 segment 2 



2a. Fore legs greatly modified, either adapted lor grasping Fig. 151a 

 or for digging Fig. 

 151b 3 



Fig. 151. a, Fore leg of a mantid; b, Fore leg of 

 a mole cricket. 



2b. Fore legs normal 4 



3a. Fore legs adopted for digging. 



Fig. 152 Subfamily Gryllotalpinae, GRYLLIDAE 



The subfamily consists of about 50 species. They 

 are called mole crickets, because of their fos- 

 sorial fore tibiae and their burrowing habits. 

 They live in' mud along waterways and are 

 vegetable feeders. 



Fig. 152. Mole crick- 

 et, Scapteriscus dida. 

 etylus Lotr. 



