Deraeocoris (Heteroptera, Miridae) 161 



cous. Cuiicus dark brownisli, slightly paler at middle, punctures dark brown. 

 Membrane fusco-brownish, paler each side opposite tip of cuneus, membrane 

 extending beyond tip of cuneus for a space about equal to length of cuneus. 



Legs: fusco-brownish or reddish brown, tips of coxae and basal half of 

 femora paler, apical half of femora without pale indications : tibiae dark brown 

 or reddish brown, apical half broadly pale, hind tibiae slightly curved, length 

 of longest hairs scarcely equal to thickness of segment ; tarsi fusco-brownish, 

 claws and arolia \'ery similar to those of harberi. 



J^eiifer: dark brownish to piceous, shining, pale pubescent. 



Holotypc: ? May 21. (at light) Trvon. North Carolina iW. F. 

 Fiske) ; author's collection. 



This species is most closely allied to barhcri and related forms, 

 all of which are western in distribution. \\'e may, therefore, regard 

 appalachianits as another link in the list of known species which indi- 

 cate a relationship/ betweoi the fauna of the southern Appalachian re- 

 gion and the mountain faunas of the western United States. 



Deraeocoris mutatus new species 



In form and coloration very suggestive of a small specimen of barberi but 

 more ovate ; tibiae triannulate with pale, left genital clasper with a well- 

 develo]jed dorsal horn. 



Length 5.3 mm. Head: width 1.12 mm., verte.x .51 mm., length .56 mm.; 

 similar to barberi but more broadly black, front and vertex solid black, leaving 

 only the basal margin of head at each side of middle, and a slender lunate 

 mark arising at base of tylus and curving up near front margin of eye, 

 pale. Rosfniiii, length 2.31 mm., nearly attaining posterior margins of hind 

 coxae, browmish to piceous. 



Antennae : segment I, length .31 mm.; II, 1.2 mm., gradually enlarged from 

 base toward apex, attaining the thickness of segment I, dusky pu. ascent, length 

 of exserted hairs about equal to greatest thickness of segment; III, .48 mm.; 

 l\\ .43 mm. ; all the segments brownish black. 



Pronotitni : length 1.2 mm., width at base 1.97 mm., anterior angles 1 mm., 

 collar .77 mm. ; disk moderately convex, lateral margins sinuate, slenderly car- 

 inate on the basal half, anterior angles narrowed: calli convex, black, a black 

 mark from the antero-lateral angles b'ing in a depression adjoining anterior 

 angles of disk ; posterior half of disk brownish to piceous, the slender basal 

 margin pale; propleura and xyphus nearly as in barberi. Scufelluni moderately 

 convex, smooth and shining, black, basal angles and apex pale to ivory-white, 

 the median line not indicated. Sternum and pleura similar to those of barberi. 



Hemelytra : width 2.48 mm., embolar margin slightly arcuate : paler than 

 in barberi. apical half of corium darkened, more distinctly piceous on a spot 

 at the middle. Cuneus comparatively large, length of outer margin greater than 

 the distance from tip of cuneus to apex of membrane : black punctate, some- 

 what translucent, blackish at apex. Membrane infuscated as in barberi but in 

 length m.ore abbreviated. 



