102 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



-s. 



The hoppers become full grown 

 .bout the first of July. The 

 adult is about li inches long, its 

 wings expand 2j inches, and it 

 is of a bright yellowish-green 

 color. The head and thorax are 

 olive-brown, and the front wings 

 are of much the same color, with- 

 out other markings, but with a 

 brownish shade at the base; the 

 hind-wings are tinged with green; 

 the hind-thighs are bright yellow, 

 especially below, with four black 

 marks; the hindshanks are yellow 

 with black spines and a ring of 

 ! the same color near the base. 

 The adults at once attack what- 

 ever crops are available, often 

 i finishing the destruction of those 

 - injured by them as nymphs, but 

 in a few days their appetites 

 .seem to become somewhat 

 appeased and they com- 

 mence to mate and wander 

 in search of suitable places 

 for laying the eggs. Rela- 

 tively few eggs are laid in 

 cultivated ground, the favor- 

 ite places being neglected 

 fields grown up in grass and 

 weeds, the edges of culti- 

 vated fields, private road- 

 ways, banks of ditches and 

 small streams, and pasture 

 lands. Alfalfa land is a fa- 

 vorite place for oviposition, 

 and alfalfa is frequently 

 FIG. 82. Nymphs of the differential locust seriously injured by this 



(1 t05> f gr Wth ~ 



species. It is doubtless due 





