86 Annals Entomological Society of America [Vol. X, 



Deltocephalus fumidus n. sp. 



(Figs. 11, 12, 13, 14). 



Uniform smoky brown iridescent, with black ocelli. Length 

 4.5 to 5 mm. 



Vertex similar to D. inimicus, about as long as width between the 

 eyes, flat. Pronotum twice as wide as long, and one-half longer than 

 vertex, strongly convex anteriorly; humeral angles sloping sharply 

 to truncate posterior margin. Elytra long, strongly curved on costal 

 margin, rounded at apex. Front convex, triangular, evenly narrowed 

 to the rectangular clypeus. Lora2 small, narrow and distant from 

 margin. 



Color: Vertex pale, shading to smok}^ brown at apex; ocelli con- 

 spicuously black, encircled with white. Pronotum, scutelliim and 

 elytra vitreous pale brown. Nervures paler, narrowly margined with 

 brown. Face smoky shading to lighter on clypeus and genae. Abdomen 

 above black, beneath pale grey. 



Genitalia: Female last ventral segment longer than preceding; 

 posterior margin truncated and slightly sinuated and infuscated either 

 side or middle. Ovipositor black, pygofers long and thickly clothed 

 with dark hairs on apical third. Male valve short, triangular, inserted 

 in the concavity of preceding segment; plates long, broad at base, and 

 concavely narrowed to pointed apices. A single row of hairs on outer 

 margin. Base of each plate with a median brown spot. Pygofers 

 densely clothed with brown hairs. 



One female and thirteen males at Woodman, July 27, 1916. 



2071. D. debilis Uhl.— One specimen, Colfax, Aug. 9, 1916. 

 2075. D. melsheimerii Fh. — Common in northern localities. 

 2079. D. affinis G. & B.— Common. 



Deltocephalus concinnus n. sp. 



(Figs. 4, 5, 6). 



Form and size of D. affinis, with two parallel brownish 

 stripes on vertex, pronotum and scutellum. Length 3.25- 

 3.50 mm. 



Vertex flat, as long as wide, bluntly angled. Pronotum equaling 

 vertex in length, strongly convex to the broadly rounded himieral 

 angles, posterior margin truncate. Elytra rather long, just exceeding 

 abdomen, tips broadly rounded and slightly flaring. Face about as 

 broad as long, sutures of front and clypeus forming a straight line. 



Color: Testaceous; ocelli black; vertex, pronotum and scutellum 

 with two broad parallel brownish stripes; pronotum with an additional 

 stripe behind either eye. Nervures white. Abdomen pale orange 

 above. Venter yellow. Face dusky; a median line and traces of 

 several pairs of arcs, dull yellow. 



