340 ZOOLOGY 
Locusta viridissima is one of the commonest European 
forms. 
3. Gryllidae.— The crickets have a shorter and more 
Fic. 191.—Mole cricket 
(Gryllotalpa vulgaris). 
1. Eggs. 
bo 
Young just hatched. 
3. Larva after first 
moult. 
4. Adult, nat. size. 
cylindrical body than those of the two preceding families. 
Their antennae are long and filiform. The male produces an 
f aS > 
eae NY NY 
Sy wae Win SSy wwe | 
Fig. 192.—Rocky Mountain Locust (Caloptenus spretus). 
a. Females in various positions ovi- d,e. The earth partially removed to il- 
positing. lustrate an egg mass already in 
b. Egg pod extracted from the ground place and one being placed. 
with the end broken open. J. Shows where such a mass has been 
c. A few eggs lying loose on the ground. covered up. 
