ORTHOPTERA 



259 



Fig. 289. — Hippiscus apiculatus. (From Lugger.) 

 Subfamily TRUXALIN^ • 



The Slant-faced Locusts 



In this subfamily, as in the preceding one, the prostemimi is 

 unarmed but the head is of a different form. In the Truxalinag, 



the vertex and the front meet on an 

 acute angle. In some species this 

 angle is a sharp one, the shape of 

 the head being similar to that of 

 Leptysma (Fig. 285). In other 

 species, however, the front is less 

 receding; this is the case in the fol- 

 lowing species. 



The sprinkled locust, Chloedltis 

 conspersa. — This is a veryabimdant 

 species in the northern United 



Fig. 290. — Chloealtis conspersa, 

 male. (From Lugger.) 



States and Canada east of 

 the Great Plains. It is 

 brown, with the sides of the 

 pronotum and the first two 

 or three abdominal seg- 

 ments shining black in the 

 male; and with the body 

 and tegmina of the female 

 sprinkled or mottled with Y-ig.2()i.— Chloealtis conspersa, iQmaXe. (From 

 darker brown. The teg- Lugger.) 

 mina and hind wings are a 



little shorter than the abdomen in the male (Fig. 290), and much 

 shorter in the female (Fig. 291). The males measure 15-20 mm. in 

 length; the females, 20-28 mm. 



Subfamily ACRYDIIN^ 



The Pigmy Locusts 



The Acrydiinas includes small locusts of very imusual form. 

 They differ so much from other locustids that some students of the 



