271 



rostrum reacliiug to the posterior line of the intermediate coxte. Pro- 

 notum symmetrically convex; the lateral margins obliquely arcuated; 

 length a little more than one-half of the breadth of base ; surface 

 coarsely, closely punctured, here and there with minute punctures be- 

 tween, on the sides more coarsely, densely, and confluently punctured; 

 on the base a little obsoletely punctured ; posterior margin behind the 

 sinus a little flattened ; pectoral areas opaque black, conflaently punc- 

 tured ; the meso- and metapleural pieces longitudinally wrinkled. Legs 

 piceous-black ; the femora obsoletely puuctately -indented ; tarsi testa- 

 ceous. Scutellum short and broad, convex, bluntly rounded at tip; the 

 sides at base contracted and sinuated, and bounded there by a smooth, 

 slender frenum ; the surface less densely and more obsoletely punctured 

 than the pronotum, and still more finely and remotely at the apex; 

 sides at base coarsely, densely, confluently punctured. Corium about 

 two-thirds the length of the scutellum, of medium width, and blunt at 

 tip, distinctly and not very coarsely punctured, more coarsely and 

 closely at base. Venter convex, very highly polished, remotely and less 

 distinctly punctured on the disk, but very distinctly, closely, and more 

 coarsely so on the sides, and i)osteriorly. 9 . 



Length, 4| millimeters. Width of pronotum, 3 millimeters. 



Inhabits California (James Behrens). 



6. C. extensa. 



Corimelama extensa, Uhler, Proc. Aiuer. Ent. Soc. 1863, 155. 



Inhabits Dakota (Mr. Pearsall); Oregon and Arizona (Dr. Horn); 

 California (J. Behrens). 



7. C. lateralis. 



Tetyra lateralis, Fab., Syst. Rbyng. 142, No. 68. 



Odontoscelis lateralis, H. Scbf., Wauz. Ins, v, tab. 149, Hg. 473. 



Corimelcena lateralis, Dallas, Brit. Mus. List Hemipt. i, 59, No. 11. 



A single specimen of the variety with very narrow, pale costal margin, 

 collected in Kansas, was given to me by Mr. H. Ulke. It abounds on 

 the prairies of Illinois, and is common in Michigan, New York, Massa- 

 chusetts, Rhode Island, Pennsylvania, and farther south. In Maryland, 

 specimens sometimes occur which are destitute of the lateral pale mar- 

 gin ; and near Baltimore may be found all the varieties between the 

 extremes of color and punctuation, 



8. G. pulicaria. 



Odontoscelis piilicarins, Germar, Zeits. i, 39, No. 6. 



Corimela'na ])ulicaria, Dalbxs, Brit. Mus. List Hemipt. i, 59, No. 10. 



Inhabits Kansas, Dakota, Minnesota, and is distributed over the whole 

 length of Atlantic I^orth America from Quebec to Florida, and west- 

 ward to Louisiana and Texas. 



9. C. f albipennis. 



Tht/reocoris albipennis, Say, Heteropt. New Harmony, 2, No. 2. 



"Oval, pale fulvous. Pronotum blackish before and on each side ; the 

 lateral margin white. Scutellum each side at base with a small black 

 spot. Hemelytra white, with a small rufous spot. Beneath piceons ; 

 the lateral margins of the pectus white." 



Length less than one-fifth of an inch. 



Obtained by Mr. Say in Is'ebraska near the Missouri Kiver. 



