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THE UNIVERSITY SCIENCE BULLETIN. 



records show it reaching further west than the others, as 

 shown by the following map: 



Hosts: This is one of the species of economic importance 

 feeding especially on members of the Leguminoste. It is very 

 common on alfalfa and clover but may be often found in large 

 numbers on wheat, barley and rye, and also on wild grasses. 



Aceratagallia uhleri (Van D.). 



(PI. 3, figs. 1-4.) 



Agallia uhleri Van D., Can. Ent., XXVI, p. 91, 1894. 

 AgaUia uhleri Gt. & B., Hemip. Colo., p. 81, 1895. 

 Agallia uMeri O. & B., Proc. Dav. Acad. Sci., VII, p. 59, 1898. 

 Agallia uhleri Van D., Cat. Hemip. N. A., p. 574, 1917. 



Form: Not as broad and flat as sanguinolenta, elytra much longer. 

 Length, 3 to 3.25 mm. Vertex shorter than in sanguinolenta, very 

 slightly longer medially than next to the eyes. Pronotum with anterior 

 margin broadly rounded, posterior margin slightly concave, lateral mar- 

 gins long, reaching the eyes. 



Color: The type shows the vertex bearing two black spots, smaller 

 than in sanguinolenta; pronotum shows two small, brown spots closer 

 together than spots of vertex, and about a fourth of the way back from 

 the anterior margin; scutellum with two large, black, triangular, basal 

 spots, the greater portion of which show up black through the pronotum; 

 elytra light gray with darker nervures, thin, showing nervures of hind 

 wings. 



External genitalia: Female, last ventral segment broader than long, 

 slightly narrowed posteriorly, posterior margin appearing bilobed be- 

 cause of large median incision which reaches nearly half the distance to 

 the base; pygofers broad, slightly exceeded by ovipositor. Male, valve 

 about five times as wide as long, lateral margins fusing with posterior 

 margins to form a regular curve; plates short and stout, slightly tapering 



