AMERICAN COLEOPTERA. 431 



femora deeply sulcate for the reception of the tibiie, which is not the 

 case in C'eutorhyachus ; in form it is short, contracted and very 

 convex. 



C. «*yani|>ennis Germ. — Oblong, oval, suhdepressed, black, elytra steel- 

 blue, sliiiiiiig, Hiiti'iniie and legs pieeous, above sparsely clotlied with fine, short 

 pubescence and a scutellar spot of white pubescence. Beak a little longer than 

 the prothorax in the male, one-half longer in the female, curved, slender, taper- 

 ing from the base, striate and punctured from the base to the insertion of the 

 antenna', more finely punctured and shining towards the apex, antennje long and 

 slender, inserted immediately before ( 9 ). or. a trifle beyond the middle, funicle 

 7-,jointed, .joints 1-2 elongate, first longer, joints 3 4 shorter than the second, outer 

 joints short, gradually wider, club ellii)toidal. Head moderately convex, densely 

 punctured and pubescent; prothorax wider than long, two-fifths wider at the base 

 than at the apex, rounded on the sides, broadly constricted behind the apical 

 margin, less distinctly on the sides, apical margin slightly emarginate at the 

 middle, basal margin broadly emarginate each side, lateral tubercles prominent, 

 dorsal sulcus deep, ending at the apical constriction, surface closely and coarsely 

 punctured ; scutel distinct, scaly. Elytra a little wider at the base than the pro- 

 thorax. feebly rounded on the sides, narrowed behind, striai fine, distinctly and 

 closely punctured, interspaces flat, rugose: pygidium rather finely punctured; 

 underside not densely punctured, punctures small, thoracic side pieces densely 

 clothed with white scales. Legs long and slender; femora feebly clavate, all 

 armed with an acute tooth, small on the anterior pair, tibiae subparallel, slightly 

 widened at the apex, latter not unguiculate, tarsi slender, third joint moderately 

 bilobed, fourth joint equal to the first, claws armed with an acute basal tooth- 

 Length 2.75-3.2.5 mm. ; 0.11-0.13 inch. 



9 ■ Last ventral segment with large, but ill-defined impression and two apical 

 tubercles; tibiae not unguiculate. 



Hab. — N. Illinois, California. 



Introduced from Europe within recent years. Careful comparison 

 with typical specimens in my collection leave no doubt of its identity. 

 It is readily recognized by its steel-blue elytra, and could only be 

 confounded with C. bolterl, from which it differs, by its larger size 

 and toothed claws. 



Ct seratus u. sp. — Elongate, black, with leneous lustre especially inarked on 

 the elytra, above very thinly clothed with fine, short pubescence, underside with 

 the exception of the sternal side pieces, sparsely clothed with white scales. Beak 

 curved and slender, longer than the prothorax, finely striate and punctured from 

 the base to the insertion of the antennie, shining and scarcely punctured beyond, 

 antennae slender, inserted two-fifths from the apex {%), funicle 7-jointed, joints 

 12 elongate, 3-4 shorter, subequal. outer joints short, club elliptical. Head 

 closely and not coarsely punctured ; prothorax wider than long, gradually nar- 

 rowed fnnn the base, sides feebly rounded for three-fourths their length, broadly 

 but not strongly constricted behind the apical margin, ocular lobes prominent, 

 lateral tubercles small, acute ; dorsjil channel distinct, wide, not deep, disc coarsely 

 jiunctured, punctures not crowded, each bearing a short hair. Elytra elongate 



TKANS. AM. ENT. SOC. XXIII. DECEMBER, lH9(i. 



