678 FAMILY XXIX. — MIRID^. 



KEY TO EASTERN SPECIES OF TERATOCORIS. 



a. Upper surface in part fuscous or reddish-fuscous, basal angles of 



pronotum and margins of elytra paler; eyes very prominent; 



length, 5.5 — 6 mm. 654. discolor. 



aa. Pale greenish-yellow or straw color; pronotum trapezoidal; eyes of 



moderate size. 



6. Smaller, length 4 — 4.5 mm.; hind tibia? dull yellow. 



655. HERBATICUS. 



bb. Larger, length 5.7 — 6.8 mm.; hind tibiae red. 656. paludum. 



654 (896). TERATOCORIS DISCOLOR Uhler, 1887b, 68. 



Head, pronotum except side margins, scutellum, clavus, inner apical 

 half of corium and base of membrane, fuscous, usually more or less 

 tinged with reddish; two small vague spots on vertex, embolium, base 

 of corium, middle of ventrals 1 — 4 and coxa? usually pale dull yellow: 

 legs and joints 1 and 2 of antennae reddish; remainder of antenna? and 

 under surface, except base of ventrals, fuscous. Disk of pronotum with 

 apical and median constrictions prominent, the apical fourth and basal 

 third finely transversely rugose, marginal carina? distinct. Scutellum 

 minutely transversely rugose, its apex with a slight median carina. Ely- 

 tra finely pubescent, slightly widened from base to middle, then feebly 

 narrowed to apex. Length, 5.5 — 6.2 mm. 



Lake Co., Ind., and Chicago, 111., June 8 — July 4 (Gerhard). 

 East New York, June 4 (Doris). Ranges from Quebec and 

 New England west to South Dakota and Colorado and south 

 to Missouri. Hussey found it common in July in the Juncus- 

 Equisetum zone at the edge of a marsh in Berrien Co., Mich. 

 Knight states that it occurs on sedges and is frequently at- 

 tracted to light. 



655 (897). Teratocoris herbaticus Uhler, 1887b, 67. 



Elongate, slender, sides subparallel, male; wider, more oval, female. 

 Pale greenish- or straw-yellow; male with a narrow black stripe ex- 

 tending from base of tylus to tip of scutellum; antenna?, knees and tarsi 

 tinged with brownish, femora with scattered dark dots. Antenna? reach- 

 ing tips of elytra, gradually more slender toward tips. Pronotum trape- 

 zoidal, side mai-gins of front portion strongly reflexed, humeral angles 

 prominent; hind portion depressed, sparsely punctate. Elytra narrow 

 with sides parallel, male, wider, more curved, the costal margin more 

 reflexed, female; corium and clavus vaguely wrinkled, sparsely punctate, 

 male, distinctly scabrous, female. Genital plate of male beset with stout 

 erect bristles. Length, 4 — 4.5 mm. 



Described from Ungava Bay and Hopedale, Labrador. Known 

 also from Norway and Sweden. 



656 ( — ). Teratocoris paludum Sahlberg, 1871, 291. 



Elongate, slender, sides subparallel. Pale green fading to straw- 



