INSECTS 119 
Locusts (Zocustarig).—The green locusts (Fig. 144) 
have large heads, long, slender antennz and legs. The 
base of the ante- 
rior wingistrans- 
parent, forming 
a drum, with 
which the males 
utter shrill calls, 
the sounds in 
some species be- 
ing different at 
day and night. 
The female has a long ovipositor for boring holes in the 
ground and wood for the reception of its eggs. The katy- 
did is a familiar form, making the curious noise from 
which they are named by rubbing the inner surface of the 
hind-legs against the outer surface of the front-wings. 
FIG. 144.—Meadow locust (Orchelimum vulgare). 
Notre.—Mr. Belt observed a locust that so resembled a leaf that 
the ants ran over it, completely deceived. 
Fic. 145.—1, wingless cricket ; 2 and 4, field-cricket ; 3, house-cricket, 
Crickets (Gryi/idz)—The crickets (Fig. 145) have a 
somewhat cylindrical body, large head, placed vertically, 
