108 Eighteenth Report State Entomologist of Minnesota — 1920 



Deraeocoris (Camptobrochis) nigrifrons new species 



Slightly larger than ticbulosus, very similar to but scarcely as large as 

 nubilus; hemelytra of male short, similar to the female ; f rons black, apical 

 half of membrane infuscated. 



$ . Length 3.6 mm. Head : width .94 mm., vertex .43 mm., length .35 

 mm., black, shining; carina and in paler specimens a spot each side of vertex 

 bordering eye pale ; eye slightly smaller and less rounded than in nubilus, not 

 occupying as much of the gena as in that species or nebulosus. Rostrum, length 

 1.34 mm., nearly attaining the posterior margins of the middle coxae, piceous. 



Antennae : segment I, length .30 mm.; II, .91 mm., tapering to slightly 

 thicker from base toward apex, attaining the thickness of segment I, pale yel- 

 lowish pubescent and beset with several fine erect hairs which in length exceed 

 the thickness of the segment; III, .39 mm.; IV, .?>7 mm.; black, the last two 

 segments with erect pale hairs as in segment II. 



Pronotum: length .91 mm., width at base 1.54 mm., anterior angles .91 

 mm., collar .67 mm. ; nearly as in nubilus, the calli more distinctly swollen 

 and confluent, without two deep punctures just behind on the median line; 

 calli and posteriorly black, the median line slenderly pale. Scutellum nearly 

 as in nubilus, lateral margins and sometimes the median line apically ivory- 

 white. Sternum and pleura black, posterior and ventral margins of the epimera 

 pale ; ostiolar peritreme white. 



Hemelytra: width 1.74 mm., short as in the female; olivaceo-testaceous or 

 grayish translucent, corium except base and spot near tip of clavus, apex of 

 embolium, commissure and more or less along base of clavus piceous, punc- 

 tures black. Cuiieus shorter than in nubilus, black, the basal half pale trans- 

 lucent, punctures black. Membrane infuscated nearly as in nubilus. 



Legs: black, tips of coxae and margins of trochanters pale, apices of femora 

 pale but with a black saddle-shaped spot over the dorsal half which viewed 

 from above gives the appearance of two annulations ; tibiae biannulate and 

 with a third indication ventrally just below the knee, pale; two basal segments 

 of tarsus largely pale. 



Venter: black, shining, very finely pale pubescent; genital claspers (PI. 

 X) distinctive of the species, approaching brevis most closely. 



5. Length 1.37 mm., width 2.11 mm., very similar to the male but slightly 

 more robust ; very little paler than the male, the median line on pronotal disk 

 usually more broadly pale while the femora are not so distinctly biannulate 

 as in the male. 



Holotypc: $ August 3, Axiel, Colorado; author's collection. 

 Allotype : August 24, Donner Lake, Placer County, Cal. (W. M. Gif- 

 fard) ; collection of California Academy Sciences. $ 9, taken with 

 the allotype. 



Deraeocoris (Camptobrochis) validus (Renter) 



1909 Camptobrochis validus Renter. Acta Soc. Sci. Fenn., xxxvi. No. 2, p. 58. 



Slightly larger than nubilus, lirownish testaceous, calli black but without 

 blackish rays posteriorly, median line of disk faintly indicated in paler; mem- 



