160 INSECTS INJURIOUS TO VEGETATION. 



threadlike elevated lines, and the hind margin is very nearly 

 transverse, or not much (if at all) angulated behind. The 

 wing-covers and wings are extremely short. The hind legs 

 are long and slender. I propose therefore to separate these 

 species from the other locusts under a subgenus by the name 

 of Chlocaltis, derived from the Greek, and signifying a grass- 

 hopper. 



13. Locusta ( Chlocaltis) conspersa. Sprinkled locust. 



Light bay, sprinkled with black spots ; a black line on the 

 head behind each eye, extending on each side of the thorax 

 on the lateral elevated line; wing-covers oblong oval, pale 

 yellowish brown, with numerous small darker brown spots ; 

 wings about three twentieths of an inch long, transparent, 

 with dusky lines at the tip; hind shanks pale red, with the 

 spines black at the end. Length nearly -^^ inch. 



This may be merely a variety of the following species, 

 though very differently colored. 



14. Locusta ( Chlocaltis) abortiva. Abortive locust. 



Brown; wing-covers with dark brown veins and confluent 

 spots, covering two thirds of the abdomen; wings three twen- 

 tieths of an inch long, transparent, with dusky lines at the 

 tip; hind margin of the thorax straight; hind shanks coral- 

 red, whitish just below the knees, the spines tipped with black. 

 Length nearly -^^ inch. 



This and the preceding locust, have much the appearance 

 of pupEB or young insects, nevertheless I believe that their 

 wings and wing-covers never become larger, and Mr. Leonard 

 informs me that they are found paired. I have captured the 

 abortive locust in pastures near the end of July. 



15. Locifsla ( Chlocaltis) curtipennis. Short-winged locust. 



Olive-gray above, variegated with dark gray and black ; legs 

 and body beneath yellow; a broad black line extends from 

 behind each eye on the sides of the thorax; wing-covers, in 

 the male, as long as the abdomen, in the female, covering two 

 thuds of the abdomen ; wings rather shorter than the wing- 



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