HOW TO KNOW THE IMMATURE INSECTS 

 3b. Fore legs adapted for grasping. Fig. 153 Family MANTIDAE 



About 1.550 species are describ- 

 ed. The name, praying mantids, is 

 applied because their fore legs are 

 held in front of the face as if pray- 

 ing. They appear to be wholly car- 

 nivorous and devour only living 

 prey. 



Fig. 153. Chinese mantis, Teno- 

 dera aridifolia sinensis Saussure. 



4a, Hind legs much larger than other pairs, adapted for jumping. 

 (See Fig. 159) 5 



4b. Hind legs of usual size, not adopted for jumping. 



(See Fig. 161) 9 



5a. Antennae usually much short- 

 er than the body; auditory or- 

 gan when present, near the 

 base of the abdomen. 

 Fig. 154 6 



5b. Antennae usually as long as or 

 longer than the body; auditory or 

 gan, when present near the base of 

 the fore tibiae. Fig. 155 7 



Fig. 154. A grasshopper, showing 

 the auditory organ on abdomen. 



Fig. 155. A fore leg with audi- 

 tory organ on tibia. 



6a. Fore and middle tarsi 2-segmented, hind tarsi 3-segmented; prono- 

 tum greatly extended, often beyond the tip of the abdomen. 

 Fig. 156 FamUy TETTIGIDAE 



About 650 species have been described. They 

 are herbivorous and found in wet places. They 

 can swim and dive in water. Eggs are laid in 

 the soil. These are the pygmy or grouse locusts. 



70 



Fig. 156. Aerydium 

 granulatum (Kirby). 



