No. 34-] HEMIPTERA OF CONNECTICUT: MIRIDAE. 49 1 



blackish; left genital clasper with a long horn at the dorsal 

 extremity, internal arm slender (fig. 56). 



Predaceous on Eriosoma americanum Riley. 



Wallingford, 13 June, 191 1 (J. K. L.) ; Lyme, June (T. L. Guyton). 

 *D. quercicola Knight. 



i8th Rept. State Ent. Minn., 138, 1921. 



Length 5.5-5.8 mm., width 2.4-2.8 mm. ; darker colored than 

 nitenatus, fuscous to blackish, calli black, apical half of membrane 

 fumate, rarely so pale as in nitenatus; left genital clasper with a 

 long dorsal horn which is very distinctive when taken in considera- 

 tion with the form of the internal arm (fig. 57). 



Occurs on Quercus alba. 



East River, June, 1910 (C. R. E.) ; New Haven, 8 July (W. E. B.), 7 

 July, 1920 (B. H. W.). 



D. quercicola var. pallens Knight. 



i8th Rept. State Ent. Minn., 140, 1921. 



In structure and size similar to quercicola; calli more or less 

 pale, pronotal disk rather uniformly colored; scutellum pale, 

 rarely with some blackish each side of median line; hemelytra 

 pale to yellowish, corium with a spot at middle, small one at base, 

 and irregularly at apex, blackish. 



Occurs on Quercus macrocarpa. 



New York, 

 D. davisi Knight. 



i8th Rept. State Ent. Minn., 140, 1921. 



Length 5.3 mm., width 2.5 mm. ; slightly smaller than nitenatus, 

 uniformly brownish black; legs and antennae chiefly pale, hind 

 femora with an incomplete dark annulus on apical half ; membrane 

 with apical half very faintly but uniformly stained with brownish, 

 veins and areoles darkened with brownish; closely related to 

 quercicola but the internal arm of left clasper more highly 

 developed (fig. 58). 



Staten Island, N. Y. 

 D. nitenatus Knight. 



II Camptohrochis nitens Reuter, Acta Soc. Sci. Fenn., xxxvi (2), 56, 1909. 



i8th Rept. State Ent. Minn., 141, 1921. 



Length 5.7-6 mm., width 2-2.9 "^"^- » general aspect very similar 

 to quercicola but more highly polished, calli black around the 

 margins only; dorsum rich brownish to dark brownish and 

 piceous, frequently brownish on scutellum but rarely blackish each 

 side of median line ; brachium and apices of areoles dark fuscous 

 while the apical half of membrane is practically clear; male 

 genital claspers distinctive of the species (fig. 59). 



Predaceous on Eriosoma lanigerum. 



New Haven, 3 Aug., 1920 (W. E. B.). 



