Deraeocoris (Heteroptera. Miridae) 



171 



Legs: dark brownish to blackish, shining, tips of coxae, trochanters, and 

 bases of femora paler ; tibiae rather broadly but sometimes obscurely annu- 

 lated with paler on the apical half, rather thickly beset with prominent erect 



hairs which in length exceed thick- 

 A "1 _^ ~~^-^ ^^ ness of tibia; tarsi fusco-brownish, 



claws with a slight indication of a 

 notch (fig. 2, C) : arolia slender, 

 bristle-like, erect, directed slightly 

 forward, converging at the apices. 



I'riitcr: brownish black, shining, 

 clothed with prominent brownish 

 pubescence; genital claspers (fig. 32) 

 distinctive of the species. 



9. Length 6.4 mm., width 3.1 



Fig. 32. Deraeocoris nigrituhis, male geni- 

 tal claspers. a, left clasper, lateral aspect : 

 b, internal arm of left clasper ; c, right clasj)- 

 er, lateral aspect. 



mm.; very similar to the male in form and color; segment II. lengtli 185 mm., 

 slender, very slightly thickened at apex, beset with exserted hairs which in 

 length are equal to three times thickness of segment, fusco-brownish. darker 

 at apex. 



Lcctotypc: S June 25. 1895 ( !). Wa.shiiigton, D. C. (O. Heide- 

 mann) ; Cat. No. 24170 U. S. N. M. Allotype: 2 July 2, Washing- 

 ton, D. C. (Wm. T. Davis) ; author's collection. Plesiotypc: <S June 

 27, Great Falls, Virginia (Wm. T. Davis); compared with type; 

 author's collection. Specimens examined : DISTRICT OF COLUM- 

 BIA,— ^9 May 20 to July 24, \\^ashington (O. Heideiuann). 2$ 29 

 May 21, Petworth. 29 June 22, Washington (Wm. T. Davis). MARY- 

 LAND,— 3359 May 9, $ May 18, S 39 June 8, corner Conduit and 

 Potomac roads, on Piniis virginiana; S May 28, 29 June 15, Belts- 

 ville; 9 June 20, Odenton ; 2S June 17, Plummers Island (W. L. Mc- 

 Atee). 29 May 24, Glen Echo (P. R. Uhler). 9 June 15. Cabin 

 John Run (Wm. T. Davis). 9 July 6. Blandensburg; 9 July 3, For- 

 est Glen (O. Heidemann). VIRGINIA.— 39 May 31. Four Mile 

 Run (W. L. McAtee). 9 May 28. Dyke. 39 May 30. 1883, "Va. on 

 pine" (Pergande). 



Both Heidemann and Mr. McAtee have found this species to 

 breed on Finns virginiana. 



Deraeocoris albigulus new species 



Closely related to nigrituhis but dififers slightly in coloration and in the 

 structure of the male genital claspers ; dark fuscous to black, basal half of 

 hemelytra more or less pale between punctures, the paler areas not stamed 

 with brownish. 



(5. Length 6.5 mm. Head: width 1.22 mm., vertex .55 mm., length .63 

 mm. ; vertex slightly impressed at each side and thus causing a slight carma at 

 basal margin; pale pubescent, black, gula and lower half of genae, sides of 



