UHLER ON INSECTS. 383 



Pang^us Stai. 



Oval, elliptical, or subquadrateoval. Head widely rounded, the lat- 

 eral lobes flat, obliquely wriukled, with a distinct pit next each eye, 

 and one each side not remote from the tylus ; submargin with stiff bris- 

 tles, but no teeth ; tylus wide and long, depressed at base, as long as 

 the lateral lobes, bounded in common with thetn by the reflexed margin . 

 Ocelli on or behind the posterior line of the eyes, separated farther 

 from each other than from the eyes. Antennae moderately stout, and 

 not very long; the fourth and fifth joints subfusiform, about equal, each 

 longer than either of the preceding ones. Bucculse as long as the throat, 

 narrow, and almost straight, the basal joint of the rostrum inclosed by 

 them ; second joint compressed, arched, longest; the third longer than 

 the fourth. Pronotum subquadrate, wider than long, narrower in front 

 than at base, the anterior margin deeply sinuated, the margin 

 proper with a thick percurreut colliim, which runs more slenderly to 

 the anterior angles ; lateral margin with a few bristles; the surface a 

 little convex, with the transverse, impressed line placed a little behind 

 the middle. Ostiolar canal ligalate, or subfusiform, about one-half the 

 length of the episternum, attached to a scale which runs farther out- 

 ward and tapers to a slender point. Anterior tibiae moderately expanded, 

 armed on the outer edge with long, curved teeth. Scutellum a little longer 

 than wide, sensibly narowed at tip. Costal margin a little expanded, 

 grooved, set with less than six bristle-carrying pits ; posterior margin 

 of the corium almost obliquely truncated, the outer angle a little promi- 

 nent, acute. 



1. P. bilineatus. 



Ci/dnus hilineatus Say, Journ. Acad. Phila., iv, 315, No. 1. 

 jEthas Uiineatus Dallas, Brit. Mas. List, Hemipt., i, 119, No. 20. 

 Fangaas hilineatus Uhler, Bull. U. S. Geol. Surv., vol. ii, No. 5, p. 9. 

 Cijdiius femoralis H.-Sclif., Waiiz. Ins., v, p. 98, fig. .548. 



Oval, coal-black, highl}^ polished; head bluntly rounded, strongly 

 margined, in some specimens with a very minute emargination in front 

 of the tylus ; generally the tylus comes up fully to the front, and fills 

 the space at the ai)ex of the lateral lobes ; submargin with remote, erect 

 bristles ; surface of the lateral lobes uneven and obliquely wrinkled, the 

 pits near the eyes and those near the front distinct ; the tylus with four 

 or five shallow transverse furrows anteriorly; base of the head promi- 

 nently elevated, convex, polished, impunctate; ocelli large, amber-yel- 

 low or reddish. Antenna3 yellowish-piceous, stout; the second joint a 

 little longer than the third. Bnccul.e minutely and obsoletely rugulose, 

 a little depressed on the side of the middle; rostrum pale rufo-piceous, 

 reaching between the intermediate coxae. Pronotum moderately 

 obliquely narrowing toward the front; the anterior angles a little pro- 

 longed and exteriorly a little curved inward; the lateral margins 

 remotely ciliated, the edge reflexed, but the sides widely arching down 



