900 FAMILY XXIX. — MIRID^E. 



third of cells darker; legs pale yellow, hind femora often with a vague 

 ring: near apex; under surface pale to dull yellow, the sides with a row of 

 fuscous spots. Joints 1 and 2 of antenna? yellow, the apex of 2 and all of 

 '■', and 4 pale fuscous-brown; joint 1 slightly longer than width of vertex, 

 2 three times as long as 1, 3 and 4 united, one-sixth shorter than 2. Beak 

 reaching apex of middle coxae. Pronotum two and a half times wider 

 at base than apex, sides straight, disk finely, sparsely, irregularly punc- 

 tate. Clavus and corium rather finely, evenly and sparsely punctate. 

 Length, 5.7 — 6 mm. 



St. Anthony Park, Minn., August 5 (Gerhard). Staten Island, 

 N. Y., August 3 (Paris). Ranges from Quebec and New Eng- 

 land west to North Dakota and Colorado and southwest to 

 North Carolina. Predaceous on Eriosoma lanigerum (Hausm.), 

 the aphid which forms the rosette gall of elm leaves. The bug 

 is the Camptobrochis nitens Reut. (1909, 56), a preoccupied name. 

 The relatively smaller size, pale calli, polished brown hue of 

 corium and almost wholly pale scutellum and legs are the prin- 

 cipal characters separating this species from its allies. 



997 ( — ). Der^eocoris quercicola Knight, 1921, 138. 



Darker than nitenattLs; head with brown markings as there; calli 

 black, their front margins and a wedge-shaped spot between their front 

 halves, yellow; disk behind them usually brown with sides and a vague 

 median line pale; scutellum yellow, normally with two wide brown 

 stripes; elytra brownish-black to piceous, darkest on middle and outer 

 apical half of corium, clavus, basal half of corium and embolium except 

 near apex, pale brownish-yellow with fuscous punctures; cuneus and 

 membrane as in nitenatus; legs pale yellow, hind femora usually with 

 one or two small brown spots near apex; ventrals dull yellow, their 

 spiracles and median line darker. Antennae yellow, the apical joints 

 dusky; the relative length of segments nearly as in nitenatus. Pronotum 

 narrower with sides less convergent and more sinuate than there, the base 

 but slightly more than twice as wide as apex, disk more finely and evenly 

 punctate. Length, 5.8 — 6 mm. 



Harrison Co., Ind., June 9 (W. S. B.). Long, Pine and Staten 

 Islands, N. Y., June 19— July 25 (Davis). Glen Ellyn and Chi- 

 cago, 111., June 19 — July 4 (Gerhard). Ranges from Quebec and 

 New England west to Minnesota and Colorado and south and 

 southwest to Georgia and New Mexico, occurring for the most 

 part on Quercus alba. The var. pallens Knight (1921, 140) is dis- 

 tinguished only by the characters given in key and is recorded 

 from New York, Minnesota, South Dakota and New Mexico. 



998 ( — ). DerjEocoris davisi Knight, 1921, 140. 



Head dull yellow, vertex with five or six oblique spots and tylus with 

 two lines brown; pronotum, clavus and inner half of corium dark brown 



