SUBFAMILY VII. — DER^OCORIN^. 901 



to black; embolium, basal half of cuneus and usually the outer half of 

 corium dull translucent yellow with fuscous punctures; scutellum dark 

 brown, a spot on each basal angle and tip pale; apical half of membrane 

 pale, basal half and veins fuscous-brown; legs pale yellow, hind femora 

 often with a dark spot near apex; ventrals brownish-black, paler on sides, 

 sparsely and finely pubescent. Antennae pale yellow, joints 3 and 4 in 

 part dusky-brown; joint 1 slightly longer than width of vertex, 2 three 

 times as long as 1, 3 as long as head, 4 four-fifths the length of 3. Beak 

 reaching base of hind coxae. Pronotum more than twice as wide at base 

 as apex, sides nearly straight, narrowly margined ; basal margin slightly 

 sinuate, narowly pale; disk finely and closely punctate. Corium finely and 

 sparsely punctate, clavus more coarsely and closely so. Length, 5.3 mm. 



Marshall Co., Ind., June 11 (W. S. B.). Staten Island, N. Y„ 

 June 18 (Doris). Recorded only from New York and Spring 

 Hill, Ala. 



Group C. — Der^ocoris. 



This group as characterized in the key, p. 893, is represented 

 in the eastern states by but a single species with several color 

 varieties. 



999 (1067). Der^eocoris sayi (Reuter), 1876, 76. 



Elongate-oval, robust. Dark fuscous-brown to black, sparsely clothed 

 with rather long inclined yellowish hairs; head, scutellum, collar and 

 edges of side margins of pronotum, dull yellow; embolium and cuneus 

 brownish translucent; membrane fuscous-brown, the veins darker; 

 femora dark brown to blackish with a pale ring near apex; tibiae dull 

 yellow with two rings on basal half and tip brown ; tarsi and beak fus- 

 cous-brown ; under side of head and prosternum dull yellow, meso- and 

 metasternum opaque black, ventrals dark chestnut-brown, shining. An- 

 tennae dark brown, thickly beset with suberect hairs; joint 1 as long as 

 width of vertex, 2 cylindrical, about three times as long as 1, 3 slightly 

 longer than 1, 4 two-thirds the length of 3. Beak reaching between 

 middle coxa?. Pronotum with base nearly two and a half times as wide 

 as apex, sides straight, calli large, smooth, feebly convex, remainder of 

 disk coarsely and evenly punctate. Elytra more finely and more thickly 

 punctate. Tibiae beset with numerous long erect bristle-like hairs. 

 Length, 7.5 — 8 mm. 



Vermilion Co., Ind., June 12 (1I\S. B.). Glen Ellyn, 111., 

 June 19 on oak (Gerhard). Raleigh, N. Car., early May (Brim- 

 lex). Ranges from New York west to Minnesota and south- 

 west to North Carolina, St. Augustine, Fla., Alabama and 

 Texas. Occurs on various species of oak. 



In addition to the typical form as above described, Knight 

 (1921, 175) has given names to five color varieties, which he 

 separates as follows : 



