78 DAVENPORT ACADEMY OF NATURAL SCIENCES. 



Color: Vertex with brown spots leaving a light-yellowish marking 

 as follows: A broad line on the anterior margin and extending back 

 along the eye, a median light stripe broadest at the base, near which 

 it gives off two branches which curve away to the middle of the e\e; 

 midway between these and the apex are two short projections at right 

 angles, forming a Greek cross in white on a dark brown field. Front 

 brown with light arcs, rest of the face light-yellowish with brown sut- 

 ures. Pronotum yellowish-olive, irregularly marked with brown on 

 the anterior half; sometimes four light oli\e stripes are e>.-ident. 

 Scutellum yellow with black markings on the disc and inside the basal 

 angles; elytra subhyaline, the nervures broadly white, margined inside 

 the cells with fuscous except along the basal pan of the costa ; tergum 

 black, margins yellow, below brownish. 



Genitalia: 9, ultimate ventral segment twice wider than long, 

 anterior and posterior margin parallel, pygofers stout, moderately long, 

 brown, with small white spots, each bearing a slender bristle: c?, 

 valve broad and short, rounding behind, plates broad at base, wedge- 

 shaped to the truncate tips where they are one-third as wide as at the 

 base, side margin straight, thickened, clothed with coarse white hairs. 



Described from thirty-two specimens, Little Rock, and Ames, Iowa. 



This species will fall in the second group of De/tocepha/i v/\\.\\ signat- 

 ifrons which it will follow; the outer anteapical cell is elliptical as in 

 that species but smaller, sometimes wanting. It may be readily sepa 

 rated from sigtiatifroiis by the absence of the tooth on the female seg- 

 ment and the wedge-shaped plates of the male. 



Deltocephalus obtectus n. sp. 



Form and ornamentation of D. tveedi nearly, lighter in color, ver- 

 tex more produced, longer and narrower than D. comtiactus. Length 

 ■x^-T^ 5 mm. Width 1-1.25 mm. 



Vertex convex, ])oint much produced, anterior margin strongly con- 

 cave either side of apex, side margins oblique, length on middle 

 equalling width at base. Face, width and length about equal Front 

 ]ari.'e, side margins convex, clypeal suture distinct, straight, half as 

 long as width of front, clypeus broad, sides straight, genae emarginate 

 below eyes, outer angle strong but rounding. Pronotum as long as 

 the vertex, twice wider than long, humeral margin strongly oblique, 

 side margin short, anterior margin much produced between the large 

 straight-margined eyes. Elytra exceeding the abdomen in length. 



