256 FAMILY VII. — CORISCID^E. 



turn with front portion more narrowed and more strongly decli- 

 vent ; connexivum more widely exposed ; hind femora more 

 slender, subcylindrical, armed beneath near apex with a slender 

 curved spine and several minute teeth. 



187 (333). Coriomeris humilis (Uhler), 1872, 403. 



Oblong-oval, widened behind. Above dull grayish-white, thickly 

 punctate with fuscous ; head densely covered with fuscous granules, the 

 median line slightly paler; edges of side margins of pronotum whitish, 

 finely denticulate; membrane grayish, the oblique veinlets brown; con- 

 nexivum alternated with fuscous and yellow; under surface dull yellow, 

 thickly flecked with fuscous markings; femora fuscous, covered with 

 whitish granules; tibia? dull yellow; tarsi and beak darker. Antennae 

 short, stout, joints 1 — 3 fuscous-brown; 1 stoutest, feebly curved, sub- 

 equal in length to 3; 4 blackish, slightly shorter than 3, subfusiform, 

 finely pubescent, as thick as 1. Other characters as previously given. 

 Length, 8.5 — 9 mm. 



Chitnia Glacier, near Mt. St. Elias, Alaska, June (U.S.Nat. 

 Mus.). Recorded from St. Petersburg, Fla., Nov. 12, by Bueno 

 (1921, 61). Ranges from Florida and Texas west to the 

 Pacific and north to Kansas and British Columbia. 



Family VII. CORISCID^E 44 nom. nov. 

 The Broad-headed Bugs. 



Elongate, slender bodied species of medium size having the 

 head porrect or feebly declivent, at times nearly as wide and 

 long as pronotum, its front portion narrowed and produced for- 

 ward in front of base of antennae, the part between the eyes 

 wider than scutellum ; eyes very prominent ; ocelli large, more 

 narrowly separated than the distance between them and the 

 eyes ; apical joint of antennas as long as, or longer than, third ; 

 nervures of membrane usually simple ; fourth and fifth dorsals 

 concavely curved at base ; spiracles placed near the apical mar- 

 gins of ventrals ; osteolar openings present except in Tollius and 

 Stachyocnemus ; first joint of hind tarsi usually more than twice 

 as long as second and third united. 



Our species occur principally on the foliage and flowers of 

 herbs and shrubs along roadsides and the borders of woods, 

 and are usually so few in number as to be of little economic im- 

 portance. They have heretofore been usually treated as a 

 subfamily of the Coreidse. The principal literature treating 



44 Horvath (1917, 378) has shown that Alydus Fabr. (1803) and Coriscus Schrank 

 (1796) were both founded with the same species, Cimex ealcaratua L. as the generic 

 type. The name of Schrank therefore has precedence and the family name should be 

 roriscida>, not Alydidw. 



