SUBFAMILY II. — CAPSINjE. 741 



and one-half times the length of 1 ; 3 and 4 dusky yellow, subequal, each 

 nearly two-fifths as long as 2. Beak reaching middle of sternum. 

 Length, 4.3 — 4.8 mm. 



Tompkins Co., N. Y., July 3 {W olden). Recorded only from 

 Ontario, New England and New York. Breeds on the flat- 

 topped white aster, Dcellingeria umbellata (Mill.). 



VIII. Dichrooscytus Fieber, 1858, 309. 



Oblong or elongate, subparallel species having the head 

 short, twice as broad across the eyes as long, its front decliv- 

 ent, vertex margined at base between the eyes, without 

 median sulcus; antennae shorter than body, joint 1 stout, cylin- 

 drical, not surpassing tip of tylus, 2 more slender, not swollen 

 toward apex, more than three times as long as 1, 3 and 4 still 

 more slender, united distinctly shorter than 2, 4 about three- 

 fourths the length of 3 ; beak reaching or passing second ven- 

 tral ; pronotum short, trapezoidal, twice as wide at base as long, 

 collar and calli distinct; disk behind the calli convex, finely 

 rugose with minute punctures between the rugae, its hind mar- 

 gin broadly rounded ; scutellum triangular, equilateral, higher 

 than clavus ; mesoscutum concealed ; elytra entire, longer than 

 abdomen, clavus convex, deflected to corium, cuneus and mem- 

 brane strongly deflected ; tarsi with joints 1 and 2 subequal, 

 3 almost as long as the others united. Seven species have been 

 described from North America, four from our territory. They 

 occur for the most part on cedar and pine. 



KEY TO EASTERN SPECIES OF DICHROOSCYTUS. 



a. Larger, length 4.5 or more mm.; base of scutellum, elytra, except 

 embolium and inner angles of cuneus, usually deep reddish. 



759. SUSPECTUS. 

 act. Smaller, not over 3.5 mm. ; elytra greenish or greenish-yellow, at 

 the most only tinged with reddish. 

 b. Eyes of moderate size, their long diameter not greater than width 

 of interocular area; elytra without a distinct fuscous cross-bar 

 on apical third of corium. 

 c. Membrane pale green ; pubescence of pronotum very fine, scarcely 

 visible; elytra greenish tinged with reddish. 760. elegans. 



cc. Membrane fuscous ; pubescence on pronotum blackish, more con- 

 spicuous ; elytra bright green or greenish-yellow. 



761. VIRIDICANS. 



bb. Eyes very large, their long diameter distinctly greater than width 

 of interocular area; elytra with a distinct fuscous cross-bar on 

 apical third of corium. 762. maculatus. 



