Deraeocoris (Heteroptera, Miridae) 



127 



Pro)iotnni : length 1.42 mm., width at base 2.39 mm., anterior angles .97 

 mm. ; collar .77 mm., dark brownish, opaque ; disk moderately convex, coarsely 

 black punctate, lateral margins slenderly carinate, slightly sulcate on the basal 

 half, anterior angles narrow and rounding to the collar ; calli slightly convex, 

 smooth and shining, two punctures between at the median line, delimited behind by 

 coarse punctures, black, yellowish brown just before on the median line; disk 

 brownish to dark brown, usually slightly paler on the central area, the median 

 line appearing broadly paler ; propleura punctate, dark brownish, only slightly 

 paler at the margins ; xyphus nearly flat, fusco-brownish, coxal margins prom- 

 inently carinate. Scutcllian convex, smooth and shining, dark brown; basal 

 angles, apex, median line on apical half, pale ; mesoscutum dark brown, slightly 

 paler at middle. Stenniin dark brown to blackish, opaque except spot at dorsal 

 margin of the meso- and meta-episterna ; ostiolar peritreme pale, slightly infus- 

 cated at the dorsal margin. 



Honclytra : width 2.9 mm., structurally nearly as in borcalis: brownish to 

 dark brown, punctures black, paler parts as on embolium and small spot at 

 base of corium stained with brownish. Ciincus pale and stained with brownish, 

 apex and narrowly at base dark brownish, punctures black. Membrane uni- 

 formly pale fumate on the apical half ; brachium, within the cells and slightly 

 invading the membrane posteriorly, blackish. 



Legs: legs pale, hind femora with two fuscous annulations on the apical 

 half ; tibiae banded with fuscous on the basal half, the middle and front 

 pair distinctly annulatcd in darkest specimens ; tarsi blackish at tips, claws 

 stained with brownish, structure of the claws and aroHa similar to borealis. 



Venter: dark brownish to black- 

 ish, shining, clothed with rather 

 long pale yellowish pubescence ; 

 genital claspers (fig. 9) distinc- 

 tive of the species, the base of the 

 left clasper prominent but not pro- 

 duced into a horn. 



9. Length 6.8 mm., width 3.1 

 mm. ; general coloration nearly 

 identical with the male, usually 

 slightly larger in size ; segment II, 

 length 1.88 mm., slender, becoming gradually thicker from the base toward apex, 

 not equaling the thickness of segment I. coarsely pale pubescent, a few hairs 

 longer but scarceh' equal to twice the thickness of the segment, yellowish, 

 the apical one-fourth brownish black, the last two segments vellowish brown. 



qrancJi5 UU. 



Fig. 9. Deraeocoris grandis, male genital 

 claspers. a, left clasper, lateral aspect ; c, 

 right clasper, lateral aspect. 



Plcsiotype: $ July 14, Batavia, New York (H. H. Knight); 

 compared with type ; author's cohection. Allotype : same data as the 

 plesiotype. Sf^cciinois cxaiitiurd : NEW YORK. — S July 7, 10 <5 69 

 July 14, U 1$ July 31, Batavia; 2 July 16, Conesus Lake; S June 

 30. Ithaca (H. H. Knight). ? August, West Hebron. 9 June 19, 3 9 

 July 3, White Plains (Torre-Bueno ). 1(? 12 July 24. Rockaway Beach, 

 L. Is. (C. E. Olsen), collected in washup. ILLINOIS,— c5 May, "111." 

 (C. A. Hart). MARYLAND,— U 12 June 14, Beltsville (W. L. 



