142 THE UNIVERSITY SCIENCE BULLETIN. 



apically, lateral margins somewhat sinuate; plates long, sparsely bristled 

 margins narrowed from base to divergent, rounded tips which are well 

 exceeded by the bristled pygofers. 



Distribution: Van Duzee reports this species from Kansas. 



Hosts: Doctor Ball gives Muhlenbergia as the grass on 

 which this species lives. 



Deltocephalus visendus Crmb. 



Deltocephalus visen4vs Crmb., Ann. Ent. Soc. Am., viii, p. 189, 1915. 

 Deltocephalus visenchts Van D., Cat. Hemip. N. A., p. 641, 1917. 



Form: That of refiexus. Length, 3.25 to 4.25 mm. Vertex flat, nearly 

 one-fourth longer than width between the eyes, acutely angled. Pro- 

 notum over twice as broad as long, strongly convex anteriorly, slightly 

 concave posteriorly, lateral margins short, humeral margins rounding 

 into posterior margin. Elytra flaring, slightly exceeding abdomen. 



Color: Pale cinereous. Vertex apically white with two black lines 

 from which reddish lines extend to the ocelli ; median line reddish, with 

 a pair of dark median transverse bars. Pronotum with six faint, brown- 

 ish longitudinal stripes. Elytra with black spots near anterior junction 

 of claval veins and on the disc. The anterior margins of the reflexed 

 nervures, the margin of the third apical cell and often the margins of 

 other veins, brownish or black. Face black, becoming brownish below. 



External genitalia: Female, last ventral segment twice as long as pre- 

 ceding, narrowed posteriorly, lateral angles acute, posterior margin 

 emarginate on either side of a large, median, obtusely pointed and 

 slightly notched lobe; sparsely spined pygofers broad, equalling ovi- 

 positor. Male, last ventral segment half as long as preceding; valve tri- 

 angular, margins somewhat concavely narrowed to acute apex; plates 

 about twice as long as valve, characteristic because of apices being 

 separated by small median excavation; bristly pygofers exceeding plates 

 and distinctly compressed from near the base. 



Distribution: Taken in Douglas, Miami and Chautauqua 

 counties. 



Hosts: Swept from native grasses. 



Deltocephalus inflatus O. & B. 



Deltocephalux inflatus O. & B., la. Acad. Sci., iv, p. 202, pi. 22, fig. 2, 1897. 



Deltncephahis inflaius Bak., Psyche, viii, p. 115, 1898. 



DfUnrephaUm inflaUis Van D,, Bui. Biif. Soc. Nat. Sci., ix, p. 220, 1909. 



I)r!t<,rilili(ilim inflatii.s Van 1)., (at. Hemip. N. A., p. 640, 1917. 



Form: Not as strongly wedge-shaped as refiexus. Length, 4.25 to 

 4.75 mm. Vertex slightly longer than basal width, more obtusely pointed 

 thaji in reflcxna. Pronotum over twice as broad as long, lateral margins 

 short. Elytra longer than in rcficxiin, flaring, two outer costal veinlets 

 strongly reflexed. 



Color: Yellowish-white; vertex with white apex margined with brown 

 and with reddish line to ocelli, with a pair of spots on either side the 



