74 FAMILY IV. — CYDNID^E. 



beak slender, reaching or surpassing middle coxae, joints 2 

 and 3 subequal, 4 shorter ; pronotum subquadrate, wider than 

 long, narrowed in front, its side margins straight from base to 

 beyond middle, thence rounded to apex, slightly reflexed, beset 

 within by eight or more bristles ; disk with a deeply impressed 

 curved line close to front margin, the latter widely and deeply 

 concave and sinuate ; scutellum fiat, triangular, its apex much 

 narrower than that of corium, tip narrowly rounded ; corium 

 with apex straight, oblique, its outer apical angle subacute, 

 costal margin with 3 — 5 coarse setae-bearing punctures ; con- 

 nexivum not exposed ; femora armed beneath with a row of 

 very slender erect bristle-like spines; tibiae slender, armed 

 with several rows of rather stout, inclined bristles ; hind mar- 

 gins of sides of ventral segments minutely serrulate ; osteolar 

 opening with a short, attenuate curved auricle, this indented 

 behind near its tip. 



Six species are recognized by Van Duzee as occurring in 

 North America, three of which are known from the eastern 

 states. 



KEY TO EASTERN' SPECIES OF PAXG.EUS. 



a. Larger, 6.5 — 8.5 mm.; color usually black, strongly shining. 



b. Second and third joints of antennae subequal; impressed line near 

 front margin of pronotum entire. 35. BILINEATUS. 



bb. Second joint of antennae distinctly longer than third; impressed 

 line of pronotum more or less obsolete at middle, where it is 

 represented by coarse punctures. 36. discrepans. 



ua. Smaller, not over 6 mm.; color piceous or dark reddish-brown; sec- 

 ond antennal slightly shorter than third. 37. uhleri. 



35 (58). Panceus bilineatus (Say), 1825, 315; II, 242. 



Broadly oval, subdepressed. Head, pronotum, scutellum and under 

 surface deep black, strongly shining; elytra and legs piceous-black; 

 antennae, beak and tarsi reddish-brown. Cheeks impunctate, each with 

 several oblique wrinkles and 4 — 6 erect bristles ; tylus with a few trans- 

 verse impressions. Pronotum with a vague, feebly impressed, transverse 

 post-median groove, this limited before and behind by an irregular row 

 of rather coarse, sparsely placed shallow punctures; disk otherwise 

 smooth or nearly so, the side margins each with 8 — 10 erect bristles. 

 Scutellum almost an equilateral triangle, rather finely and very sparsely 

 punctate. Elytra with two rows of vague shallow punctures near the 

 inner edge of corium, otherwise nearly smooth, the basal half of costal 

 border with three or four large punctures, each with a fine inclined 

 bristly hair; membrane short, brownish-hyaline, but little surpassing the 

 abdomen. Under surface smooth. Other structural characters as under 

 generic heading. Length, 6.5 — 8 mm.; width, 3.5 — 4 mm. 



