128 FAMILY V.— TRYXALINvE. 



lated. The radial vein is composed of three principal 

 branches; there is no intercalary- vein. The ulnar vein is 

 composed of two branches which sometimes unite again be- 

 fore the middle, the dividing vein is straight, and the plicate 

 vein is free or united with the dividing. The wings are fully 

 developed or rarely abortive, not fenestrated, rarely want- 

 ing. The posterior femora are frequently dull testaceous, 

 rarely red. The sternum is rather broad, with the mesos- 

 ternal lobes widely separated and the metasternal lobes dis- 

 tinct. The first abdominal segment is furnished with a 

 closed tympanum. The anal segment is longitudinally sul- 

 cate with the supra-anal plate of the male obtusely tri- 

 angular. The sub-genital plate of the male is recurved with 

 the apex obtuse or acuminate. The valves of the ovipositor 

 are short but exerted, and sometimes furnished with a lat- 

 eral tooth. 



THE SHORT-WINGED LOCUST. 



[Stenobothrus curtipennis Harr.). 



Olive-gray above, variegated with dark gra^^ and black; 

 leffs and bodv vellow beneath; abroad black line extends 

 from behind each eye on the side of the thorax; wing- 

 covers, in the males, as long as the abdomen, in the female 

 covering two-thirds of the abdomen; wings rather shorter 

 than the wing-covers, transparent, and faintly tinged with 

 yellow; hinder knees black; spines on the hind tibia; tipped 

 with black. 



This is a very abundant locust, found most commonlv 

 among tall grasses of low and damj) prairies and among 

 blue grass growing thickly in shaded situations. In such 

 places they can be found from earh- July till late in October. 

 They are very easily distinguished from all other locusts by 

 their short and narrow wings, the yellow color of the body 

 beneath, and by the prominent yellowish hind legs with black 



