SUBFAMILY I. — MIRING. 669 



passing abdomen ; membrane with two distinct cells, the larger 

 one longer than the cuneus. 



Two species occur in our territory. A third, the Stenodema 

 virens (Linn.), a common European species, is included by 

 Van Duzee from "N. Amer.," without definite locality. Knight 

 (1922, 288) states that it occurs from Colorado and Montana 

 westward. 



KEY TO EASTERN SPECIES OF STENODEMA. 



a. Hind femora armed beneath near apex with three spines, the poste- 

 rior one very short; antennae dull yellow. 640. trispinosum. 

 act. Hind femora unarmed; antennae in great part reddish. 



641. VICINUM. 



640 (882). Stenodema trispinosum Reuter, 1904, 4, 8. 



Elongate-oval, slender. Color a nearly uniform pale green fading to 

 straw-yellow; pronotum sometimes with two vague lateral stripes and 

 a blotch on basal half fuscous; corium rarely with a faint fuscous stripe 

 extending to apex of membrane; hind femora indistinctly dotted with 

 brown; mesosternum, tarsi and a stripe along the sides of under sur- 

 face often fuscous. Structural characters as under generic heading. 

 Length, 6.8 — 7.5 mm. 



Common throughout southern Indiana, less so in the north- 

 ern counties, May 31 — Oct. 21. Occurs on grasses in meadows 

 and along roadsides, usually in dry soil. One specimen taken 

 on juniper has a dusky stripe the full length of corium and 

 membrane and four spines on hind femora. This is a palae- 

 arctic European species whose known range in this country is 

 northern, extending from Quebec and New England west across 

 the continent to British Columbia and California. Not recorded 

 south of New Jersey except from Texas, probably in error, by 

 Uhler (1876, 316) as Brachytropis calcaratus Fall. 



641 (883). Stenodema vicinum (Provancher), 1872, 77. 



Form of trispinosum, averaging slightly larger. Color much as 

 there; pronotum with a narrow pale median stripe, often bordered each 

 side by a wide fuscous one, extending from vertex back to end of scutel- 

 lum ; male with clavus and inner half of corium usually fuscous to black- 

 ish; antenna? in fresh specimens of a roseate hue, the basal joint often 

 paler. Hind femora more slender than in trispinosum and usually with- 

 out dark dots. Length, 7 — 7.5 mm. (Fig. 164). 



Lake, Kosciusko and Marion counties, Ind., June 19 — Oct. 26 ; 

 swept from tall grasses along a railway embankment and from 

 low herbage along the margins of woods {W. S. B.). Chicago, 



