46 FAMILY I. — SCUTELLERID^E. 



Indiana, and but a single specimen is known from Illinois. This 

 was taken at Cobden, May 9, by Malloch, who states (1919, 

 171) that he cannot detect the central ridge dividing the sulcus 

 on dorsal face of tibiae, which character was used by Hart to 

 separate Stethaulax from Symphylus. This central ridge is not 

 present in the specimens at hand. The insect is said to occur 

 on cedar. 



VII. HoMjEMUS Dallas, 1851, 36. 



Scutellerids below the medium in size and of oval convex 

 form, having the head slightly longer than broad, rounded in 

 front ; tylus convex, distinctly surpassing the cheeks ; first and 

 second antennals subequal in length, third distinctly longer 

 than second, fourth and fifth slender, subequal, each one-fourth 

 or more longer than third ; beak reaching to or slightly beyond 

 middle of second ventral, its second joint longer than third and 

 fourth united ; pronotum subhexagonal, its front gradually, not 

 strongly declivent, the lateral angles somewhat broadly 

 rounded, front side margins more or less reflexed ; scutel- 

 lum reaching tip of abdomen, covering one-half or more 

 of costal border of elytra ; connexivum narrowly or not at all 

 exposed ; front margin of sternum produced forward conceal- 

 ing the base of antennae ; osteolar canal long, reaching almost 

 to outer margin of its supporting plate, then bent or curved 

 forward but not widened apically or punctured as in Sphyro- 

 coris. 



Five species are listed by Van Duzee as occurring in the 

 United States, three of which are found east of the Mississippi 

 River. 



KEY TO EASTERN SPECIES OF HOMjEMUS. 



a. Head not or very minutely pubescent and without pale margins; 

 costal border of elytra with black markings; length, 7 — 9 mm. 



9. jENEIFRONS. 



cut. Head with distinct prostrate yellowish pubescence, its side margins 



distinctly paler than the center; costal border pale throughout. 



/;. Sides of pronotum straight or nearly so; margins of the abdomen 



without black spots; larger, length, 6 — 8 mm. 10. bijugis. 



bb. Sides of pronotum feebly but evidently concave at middle; side 



margins of abdomen with a small black spot near the hind angle 



of each segment; smaller, length, 4.5 — 6 mm. 11. parvulus. 



9 (14). Hom^emus vENEiFRONS (Say), 1824a, 299; I, 199. 



Dull brownish-yellow varied with fuscous; head and a vague triangular 



