Deraeocoris (Heteroptera, Miridae) 133 



ment II, length 1.62 mm., slender, slightly thicker at apex, beset with prominent 

 exserted hairs which in length are equal to three times thickness of segment, 

 yellowish, usually darker at apex and sometimes slightly dusky near base ; 

 segment I paler at apex while the last two segments are paler than in the 

 male ; venter reddish to brownish and rarely with some piceous ; apices 

 of tibiae usually paler than in the male. 



Holotypc: i July 3, McLean, New York (H. H. Knight) ; author's 

 collection. Allotype: same data as the type. Parafypcs: 305 28$, 

 taken with the types on alders, Abuts incana. growing along the stream 

 which flows out from the bogs. CONNECTICUT,— 25 35 June 19, 

 Wallingford (J. D. Caffrey). $ June 20, New Haven (B. H. Wal- 

 den). 9 July 2, New Haven (W. E. Britton). 1 $ 1$ July 3, Stoning- 

 ton (I. W. Davis). NEW YORK,— 5 2$ June 24, 22 July 5, Batavia; 

 29 June 27, Portage; $ July 27, McLean (H. H. Knight). 2$ June 

 24, 25 2$ June 30, 5 July 2, 9 July 6, 25 65 July 7, White Plains 

 (J. R. Torre-Bueno). ONTARIO, CANADA,— 3 5 July 1, Ottawa 

 (H. G. Crawford). 5 June 19, Hastings County (Evans). 



The writer found this species only on alders, Alnus incana, but 

 not in the same situations with borealis. On one occasion an adult 

 bug was discovered feeding on a small adult Fulgorid, Lamenia vul- 

 garis Fitch. Aphids and Psyllids were very abundant on the alders 

 w^here alnicola was taken and both nymphs and adults doubtless feed 

 to a considerable extent on these small insects. 



Deraeocoris shastan new species 



General aspect very similar to alnicola but the median line of pronotal disk 

 not clearly defined with pale, disk more closely and finely punctate, abruptly 

 convex at lateral margins, bucculae black while the juga are chiefly pale. 



9. Length 6.5 mm. Head: width 1.11 mm., vertex .55 mm., length .63 mm.; 

 nearly as in alnicola, but genae broader and more tumid, front and vertex slightly 

 more convex ; pale to yellowish, black bars and spots each side of median line 

 of front, black on the impressed spot at each side of vertex ; base and two 

 vittae on basal half of tylus, bucculae, dorsal margin of lorae, beneath base 

 of antenna and m.ore or less at apex of tylus, blackish, juga pale or only 

 slightly dusky on its convexity. Rostrum, length 2.28 mm., reaching to near 

 hind margins of middle coxae, yellowish brown, apex piceous ; basal segment 

 just attaining base of head, a black line each side of the suture. 



Antennae : segment I, length .5 mm., brownish to fuscous ; II, 1.48 mm., 

 slender at base, tapering gradually to thicker at apex but not equaling the 

 thickness of segment I, beset with several exserted pale hairs, the length of 

 some equal to three times thickness of segment, fusco-brownish, slightly paler 

 at extreme tip ; III, .63 mm. ; IV, .49 mm. ; last two segments brownish to black. 



Pronotum: length 1.4 mm., width at base 2.31 mm., anterior angles 1.11 

 mm., collar .85 mm. ; lateral margins slenderly carinate, slightly sulcate, disk 



