SUBFAMILY VII. — DERiEOCORIN^E. 897 



brownish rings on basal third ; ventrals pale brown with a reddish tinge. 

 Joint 1 of antennae subglabrous, dark brown, slightly longer than width 

 of vertex; 2 — 4 pubescent, 2 dark reddish-brown, paler at middle, nearly 

 three times as long as 1 ; 3 and 4 blackish-brown, 3 two-fifths as long as 

 2, 4 two-thirds the length of 3. Pronotum three-fifths wider at base 

 than long, sides nearly straight; disk narrowly margined, rather coarsely, 

 somewhat irregularly punctate, hind margin very slightly sinuate. Elytra 

 coarsely, evenly, rather sparsely punctate. Length, 6.3 — 6.5 mm. 



Marion, Martin and Lawrence counties, Ind., June 3 — July 

 11; beaten from Crataegus. (W, S. B.) . Muskegon, Mich., and 

 Willow Springs, 111., June 27 — July 16 (Gerhard) . Ranges from 

 Quebec and New England west to North Dakota, British Colum- 

 bia and Oregon, the distribution being mainly north of latitude 

 40°. Knight found it at Batavia, N. Y., on apple trees closely 

 associated with the rosy apple aphid, Anuraphis roseus Baker. 

 "The white-wax-coated nymphs of the bug frequent the aphid- 

 curled leaves, feeding on the aphids and honey-dew excretions." 



991a ( — ). Der^ocoris fasciolus castus Knight, 1921, 125. 



Differs from typical fasciolus only in color, the upper surface being 

 a nearly uniform pale brownish-yellow, the tip of the cuneus alone usually 

 distinctly darker; vertex and tylus with fuscous markings as there; calli 

 wholly pale or in part suffused with brownish; embolium pale yellowish- 

 hyaline throughout; legs almost wholly pale yellow, the brown markings 

 of hind femora very small or wanting. Antennae yellow, base of joint 1, 

 apex of joint 2 and joints 3 and 4 more or less fuscous or dusky. Length, 

 6 — 6.5 mm. 



Laporte and Marion counties, Ind., June 19 — July 25 

 (IV. S.B.). Holland, Mich., July 8 (Gerhard) . Staten Island, N. 

 Y., July 15 (Davis). The known range extends from Quebec 

 and Massachusetts west to Michigan and Indiana. Not recorded 

 south of New Jersey. Knight found it on beech at Ithaca, N. 

 Y., where "it was associated with and predaceous upon the 

 beech aphid, Phyllaphis fagi (L.), which rolls the leaves tightly 

 from the margin." Hussey records it as "common in July on 

 aphid-infested elms in the dune region of southwestern Michi- 

 gan." 



992 (1070). Der^eocoris grandis (Uhler), 1887, 230. 



Ground color above dark greenish- or brownish-yellow, with fuscous 

 punctures; head with a stripe each side of vertex, two lines on tylus, and 

 cheeks in part, dark brown. Pronotum with calli shining black, the area 

 behind them fuscous-brown, with a vague wide paler median stripe; 

 scutellum dark brown, the basal angles a narrow median line on apical 

 half and tip pale; outer apical third of corium clouded with fuscous; 



