SUBFAMILY III. — ORTHOTYLIN^. 831 



dimorphic, in males usually surpassing - abdomen, cuneus de- 

 clivent but fracture weak ; legs long, tibiae finely spinulose, first 

 joint of hind tarsi longer than second. One species occurs in 

 the eastern states. 



892 (1097%). Sericophanes heidemanni Poppius, 1914a, 260. 



Male — Elongate, slender, narrowed at middle. Head, pronotum, 

 scutellum and under surface dark chestnut-brown to blackish; elytra 

 paler brown, with a large rounded pale spot on middle of commissure 

 and two vague oblique silvery-gray blotches on corium, the basal one 

 reaching onto clavus; membrane dusky pubescent, whitish at base; legs 

 reddish-brown, hind coxae paler. Antennas with joints 1 and 2 pale 

 brownish-yellow, finely pilose, 1 slightly stouter than the others, a little 

 shorter than width of vertex; 2 cylindrical, nearly five times as long as 

 1 ; 3 and 4 fuscous-brown, 3 two-thirds the length of 2, 4 subf usiform, 

 two-thirds as long as 3. Pronotum minutely alutaceous; humeral angles 

 broadly rounded into basal margin. Elytra with costal margins broadly 

 concave, ciliate with minute yellow bristles; disk of corium smooth, beset 

 with a few erect yellowish hairs ; membrane surpassing- abdomen by more 

 than half its length. Brachypterous Female — Ant-like in form. Yellow- 

 ish brown. Pronotum and abdomen subglobose. Elytra reaching only 

 to base of third dorsal. Length, 3.1 — 3.5 mm. (Fig. 180). 



Marion Co., Ind., Aug. 1; at desk light (W.S.B.). Palos 

 Park and Willow Springs, III, May 31 — June 4 (Gerhard) . Re- 

 corded only from New England, New York and Minnesota, but 

 probably to be found in intervening states north of latitude 

 40°. Occurs on upland grassy ridges, the males also often at 

 light. Recorded mostly heretofore as 5". ocelhtus Reut., a small- 

 er and much paler Texan species. The S. noctuans Knight 

 (1917b, 4) is a synonym of heidemanni. 



Tribe VII. LOPIDINI Van Duzee, 1916a, 212 (Lopidearia) . 



To this tribe, as characterized in the key, p. 797, belong three 

 of our eastern genera of Orthotylinae. 



KEY TO EASTERN' GENERA OF LOPIDINI. 



a. Base of vertex without a bristle-bearing ridge across its full width; 

 upper surface not beset with numerous erect black bristles. 

 6. Base of tylus below a line drawn through the lower margin of 

 eyes; cheeks not divided by an oblique suture beneath the eyes; 

 elytra in great part green or greenish-yellow. 



I. Ilnacora, p. 832. 



66. Base of tylus above a line drawn through the lower margin of the 



eyes ; cheeks divided by an oblique suture leading from base of 



antennae to beneath eyes; elytra usually red and black, never 



green. II. Lopidea, p. 834. 



