No. 34-] HEMIPTERA OF CONNECTICUT: MIRIDAE. 489 



or less invaded with brownish, or pale and without distinct rays 

 behind ; left genital clasper very similar to that of borealis but the 

 right clasper is distinctive (fig. 52). 



Massachusetts, Maine, New York. 

 D. fasciolus var. castus Knight. 



18th Rept. State Ent. Minn., 125, 1921. 



Apparently only a color form of fasciolus; tibiae pale without 

 annulations, dorsum fulvo-testaceous, calli usually lined with black 

 but sometimes entirely brownish. 



Occurs on beech (Fagus grandiflora) ; predaceous on Phyllaphis 

 fagi Linnaeus. 



Massachusetts, New York. 



D. grandis (Uhler). 



Camptobrochis grandis Uhler, Ent. Amer., ii, 230, 1887. 



18th Rept. State Ent. Minn., 126, 1921. 



Length 6.4-7 mm., width 2.9-3.1 mm. ; distinguished by the long 

 rostrum which reaches upon the second segment of the venter ; 

 dorsum rather uniformly dark brown, median line of pronotal disk 

 rather broadly but only slightly paler than behind the calli ; legs 

 pale, apical half of hind femora and basal half of tibiae biannulate 

 with blackish; membrane uniformly pale fumate on the apical half. 



Occurs on hickory (Carya sp.). 



Massachusetts, New York. 



*D. betulae Knight. 



18th Rept. State Ent. Minn., 129, 1921. 



Length 6.7-7 mm., width 3-3.2 mm. ; brown to dark brown or 

 blackish, venter dark reddish brown to chestnut red ; femora uni- 

 formly blackish on the apical half, tibiae triannulate with blackish. 



Occurs on birch (Betula lutea). 



New Haven, 2 July (W. E. B.) ; South Meriden, 4 July (H. L. J.). 



*D. alnicola Knight. 



18th Rept State Ent. Minn., 132, 1921. 



Length 6.5 mm., width 2.7-2.9 mm. ; general aspect very sug- 

 gestive of borealis but distinguished by the genital claspers, promi- 

 nent exserted hairs on antennae, and by paler infuscation of the 

 membrane which does not form a distinctly rounded spot on the 

 apical half (fig. 55). 



Occurs on alders (Alnus incana). 



New Haven, 20 June (B. H. W.), 2 July (W. E. B.) ; Stonington, 5 

 July, (I. W. D.) ; Wallingford, 19 June, 1912 (D. J. C). 



*D. aphidiphagus Knight. 



1 8th Rept. State Ent. Minn., 134, 1921. 



Length 5.8-6.1 mm., width 2.9-6.1 mm.; fusco-grayish to black- 

 ish, the paler and translucent parts not stained with brownish, 

 apical half of membrane infuscated, tibiae triannulate with 



