100 Eighteenth Report State Entomologist of Minnesota — 1920 



Deraeocoris (Camptobrochis) histrio (Renter) 



1876 Callicapsus hisfrio Renter, Ofv. Kongl. Sv. Vet.-Akad. Forh., xxxii, No. 



9, p. 75. 

 1895 Caliicapsus histrio Blatchley, Psyche, vii, p. 279. 



1909 Camptobrochis histrio Renter, Acta Soc. Sci. Fenn. xxxvi, No. 2, pp. 54, 58. 

 1917 Caiiiptobrochys (Callicapsus) histrio Van Dnzee, Cat. Hemip., p. 355. 



$ . Length 4.6 mm. Head : width .91 mm., verte.x .42 mm., length .48 

 mm.; carina present but low and broad, slightly impressed just before, 

 collum broadly exposed as in other species of this group ; black, carina, spot 

 each side of vertex bordering the eye, slender ventral margin of bucculae and 

 tylus, pale. Rostrum, length 1.85 mm., reaching to middle of hind coxae, piceous, 

 somewhat paler on segment I. 



Antennae: segment I, length .42 mm.; II, 1.2 mm., nearly cylindrical but 

 slightly more slender toward the base, equal in thickness to segment I, pubes- 

 cence pale to black, rather short and closely set, longest hairs not equal to 

 thickness of the segment ; III, .45 mm. ; IV, .51 mm. ; black, the last two 

 segments slender, very finely pale pubescent, a few exserted hairs equal to 

 thickness of the segment. 



Pronotum: length 1.11 mm., width at base 1.85 mm., anterior angles 

 .83 mm., collar .65 mm. ; disk convex, lateral margins distinct, nearly straight, 

 strongly narrowed anteriorly, coarsely and rather uniformly but not densely 

 punctate; disk pale red to bright red, punctures becoming black, calli except 

 at antero-lateral angles and a widening stripe behind each which falls short 

 of the basal margin, black; calli moderately convex, three or four fine punc- 

 tures on the disk of each, delimited behind by coarse punctures, a pair of deep 

 punctures set between the callosities, one each side of the median line; pro- 

 pleura black, red dorsally, pale bordering the coxal cavities ; xyphus moderately 

 convex, black, paler at margins and including the collar in front, pale pubescent. 

 Scutcllum red, a black spot on median line at base, punctate, the punctures only 

 slightly darkened. Sternum and pleura black; ostiolar peritreme black but 

 usually with some pale points. 



Hcmelytra: width 2.2 mm., red (sometimes slightly pallid where the me- 

 lanin pigment has not been fully oxidized to red), clavus except apex, triangle 

 at base of corium, and a large somewhat rounded spot on the apical half black, 

 punctures mostly blackish. Cuncus red, punctures concolorous, usually a black- 

 ish streak along inner margin near apex. Membrane dark fuscous, an irregular 

 transverse band at middle pale, the apical half with a crescent-shaped fuscous 

 cloud which does not always attain the margin. 



Legs : black, shining ; tibiae biannulate with pale, the front pair frequently 

 with only one annulus ; tarsi brownish black, darker at apex, claws brownish 

 to piceous. 



Venter: black, shining, finely pale pubescent; genital claspers (PI. X) dis- 

 tinctive of the species. 



9. Length 5 mm., width 2.2 mm. ; very similar to the male but usually 

 slightly larger ; segment II of antennae more slender on the basal half, tapering 

 from base to larger at apex. 



