AMERICAN COLEOPTERA. 429 



scattered white scales on the disc, especially on the declivity ; pygidiuni trans- 

 versely impressed each side; underside not densely punctured, punctures rather 

 small, superficial. Legs and tarsi somewhat stout, femora not clavate, tooth, dis- 

 tinct on the posterior pair only, tihise feebly curved, widened to the a])ex, firet 

 and second joints of tarsi scarcely longer than wide, third more broadly bilobed, 

 fourth joint longer than either of the iireceding joints, slender, claws simple. 

 Length 2.2 mm. ; 0.09 inch. 



%. hast ventral with a large, well defmeil fovea; tibije not unguiculate. 



Hub. — Dunsinuir, Cal. ; British C(>lmiil)iu. Dr. Horn'.-; and my 

 own coll. Two males. 



sulcipennis group. 



The species of this group have the femora dentate, the elytra more 

 or less shining and very thinly pubescent, without patterns of con- 

 densed scales, except a scutellar spot. The antennal funicle is 6- or 

 7-jointed, claws toothed or simple. They are all of moderate size 

 and may he distinguished as follows : 



Elytra coarsely sculptured, striai deep, sulciform. interspaces with a row of acute 

 granules, claws armed with a long tooth. 



Funicle 7-jointed Niileipeiiiiis. 



Funicle fi-jointed (iecipieiiM. 



Elytra not coarsely sculptured, without rows of acute granules. 

 Funicle 7-jointed, claws toothed. 



Elytra blue I'yaiiipeiiiiis. 



Elytra a-neous HTiitiiS. 



Funicle 7-jointed, claws simple. 



Elytra dark blue bolter i. 



Elytra entirely black Iiii'ticollis. 



Funicle 6-jointed. 



Phitirely ferruginous, elytra acutely tuberc.ulate on the declivity, claws 



toothed Hrinatuw. 



Black, declivity with a few small, acute granules I>olliiiOSil»». 



v. Kiiloipoiiiiis Lee. — Oval, black, antenna^ and tarsi piceous, above very 

 thinly clulhcd witli a very fine, pale pubescence. Beak curved, a little {%) or 

 considerably ( 9 ) longer than the prothorax. obscurely carinate. finely punctato- 

 striolate throughout in the male, finely punctured and shining beyond the inser- 

 tion of the antennae in the female; anteniiiv slender, inserted just beyond (% ), 

 or immediately before ( J ) the midd-le, funicle 7-jointed, joints 1-4 elongate, 

 second longer than the others, outer joints short, club elliptoidal, acuminate. 

 Eyes only partially concealed in repose by the feebly developad i)ostocular lobes, 

 round, slightly (convex. Head convex, coarsely jjunctured ; prothorax wider 

 than long, strongly narrowed anteriorly, rounded on the sides, widest a little 

 behind the middle, con.stricted at the apex, lateral tubercles acute, quite distinct, 

 dorsal channel wide, deeply impressed, extending from the base to the apical 

 constriction, surface coarsely and subcontluently punctured ; scutel distinct. 

 Elytra ovate, convex, shining, one-third wider at the base than the prothorax, 

 roundetl on the sides and narrowed froni the humerus to the apex, sulcate. sulci 



rRANS. A.M. KNT. SOC. XXIII. DECEMBER, 1H9K. 



