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ECONOMIC ENTOMOLOGY 



Differential Locust (Melanophis diferentialis Uhler). — This locust 

 is larger than those described above, about i3''^ inches long, and is dark 

 brownish-green or olive-brown in color. The hind legs are yellow with 

 black basal tibial ring and black spines. The subgenital plate short 

 and broad, and the cerci of male boot-shaped. It is fond of the Greater 

 Rag-weed. It is a southern form. 



Fig. 68. — Two-striped grasshopper {Melanoplus bivitlatus): Above, adult male; 

 below, adult female. Twice natural size. {After W. R. Walton, U. S. Bur. Ent.) 



Two-striped Locust {Melanoplus hivittatus Say). — This locust is 

 not so large as the Differential locust, being about i^^i inches long, 

 and is dull olive-brown above and yellowish beneath. A narrow yel- 

 lowish stripe runs along each side from the eye to the tip of the teg- 

 men. The hind femora are yellow, and the hind tibiae coral red with 



