144 Eighteenth Report State Entomologist of Minnesota — 1920 



August 5 by beating the limbs of Q it c reus macrocarpa, and the isolated 

 occurrence suggests that nitenatus is predaceous upon plant lice or 

 other small soft-bodied insects on that tree. Dr. H. M. Parshley col- 

 lected adults from among the nymphs of Corythucha associata O. & D. 

 on wild cherry, but the true relationship between the forms was not 

 determined. 



Deraeocoris fulvus new species 



Smaller than nitenatus, fulvous to piceous, male becoming piceous on pro- 

 notum and hemelytra. female piceous only at inner apical angles of corium. 



S . Length 4.3 mm. Head : width .88 mm., vertex .4 mm., length .43 mm. ; 

 base of vertex slightly elevated to form a carina vi'hich extends higher than 

 the black and broadly exposed collum ; luteous to brownish, polished, bordering 

 inner margins of eyes and extending slightly upon vertex, geminate mark on 

 basal half of tylus, genae, dorsal margins of bucculae and lorae, somewhat on 

 juga and the tip of tylus, blackish. Rostrum, length 1.48 mm., reaching to near 

 posterior margins of middle coxae, yellowish, dark brown at apex. 



Antennae: segment I, length .34 mm.; II, 1.2 mm., cylindrical, thicker than 

 segment I, abruptly slender at base and slightly so at apex, pale pubescent, 

 length of exserted hairs scarcely equal to thickness of segment; III, .44 mm.; 

 IV, .2)2i mm. ; yellowish, the apex of segment II very little, if any, darker, the 

 last two segments slightly dusky. 



Pronotum : length .97 mm., width at base 1.71 mm., anterior angles .74 

 mm. ; collar 6 mm., dark brown, opaque ; punctures concolorous, lateral mar- 

 gins straight, ecarinate ; calli slightly convex, confluent with the apical area of 

 disk, polished; disk fulvous, anterior part and posterior half becoming piceous, 

 darkest specimens with only a fulvous spot behind the calli, the slender basal 

 margin remaining pale or ivory-white; propleura yellowish brown, opaque, coxal 

 cleft and just above at anterior angle blackish; xyphus slightly convex in front, 

 receding posteriorly, yellowish to dusky brown. Scutelliim convex, polished, pale 

 to yellowish, becoming brownish on disk but apparently never very dark. Ster- 

 num dark brownish, more brownish at the sides and on pleura, basalar plate 

 pale yellowish ; ostiolar peritreme white, sometimes tinged with yellowish, finely 

 pilose on the episternum just above. 



Hemelytra : width 2.02 mm., black punctate, very few punctures on basal 

 half of embolium ; clavus yellowish brown, darker along inner margins and 

 each side of claval vein ; corium dark brownish to piceous, more or less pale 

 or clear near the basal angle; embolium pale yellowish translucent, somewhat 

 invaded with piceous near apex. Cuneus pale translucent to yellowish on the 

 basal half, dark fusco-brownish on the apical half, punctures chiefly pale. 

 Membrane clear or only slightly tinged with yellowish, brachium darkened 

 with brownish along apex of cells. 



Legs: pale to yellowish, hind femora with a dark mark on anterior face 

 slightly beyond the middle; claws brownish, arolia bristle-like, translucent, erect 

 and converging slightly apically, protruding slightly forward between the claws. 



