NORTH AMERICAN COLEOPTERA. 49 



C Dohriii Horn. — Oltlons, moderately elongate, parallel, equally obtuse at 

 either extremity, color bright blood red, elytra black, a humeral spot and the 

 apical fifth red, beneath red, sides of body and abdomen black, surface finely 

 pubescent, the pubescence similar in color to the surface ; antennae piceous, the 

 basal joint red, not passing the hind angles of the thorax, first .joint stout, equal- 

 ling the next two, second small, partly concealed, third nearly as long as the next 

 two, four to eight equal in length, very gradually shorter, nine to eleven a little 

 wider, the last joint abruptly truncate ; head moderately convex, coarsely and 

 closely punctate, a vague triangular flattening above the base of the clypeus; 

 thorax a little wider than long, sides parallel at basal third, then arcuately nar- 

 rowing to the front, hind angles very little prolonged, not carinate, disc moder- 

 ately convex, a transverse, slightly oblique depres.sion on each side near the 

 middle, another on each side beginning at the base opposite the middle of each 

 elytron extending in an arcuate manner forward and outward, surface densely 

 and moderately coarsely punctate ; elytra striate, the .strise entire except the 

 second and third, distinctly punctate intervals flat, slightly convex near the base, 

 densely and slightly roughly punctate ; body beneath nearly equally i)unctate 

 throughout, the punctures not dense ; legs red. Length .60 inch ; 15 mm. 



Ill the other species of the genus the anteiiiic\3 are otherwise con- 

 structed in the male, the third joint liaving a lobe or process near 

 the base. 



This species is the only brightly colored form in our fauna. The 

 specimen in my cabinet was given me by Dr, C. A. Dolirn, who pos- 

 sesses another, which was said to have been collected at San Diego, 

 CaL, but as I have found at least one other species in the same lot 

 from Yucatan, this species may be from that region. 



A]VEL.ASTE!li Kby. 



Form oblong, convex, slightly narrower behind ; autenuse extending very little 

 beyond the hind angles of the thorax, joints four to teu short, nearly equal, sub- 

 moniliform, the last joint a little longer, abruptly acuminate at tip ; head deeply 

 inserted, eyes entire, not very convex , clypeus short, arcuate in front, much 

 narrower at base than the distance to the eyes; prothorax broader than long, 

 slightly narrower in front, sides arcuate, lateral margin indistinct; .scutellum 

 triangular, obtuse at tip ; propectus without antennal grooves, prosternal sutures 

 straight behind, arcuate near the front ; prosternum rather broad between the 

 coxaj, obtuse at tip ; metasternal epi-sterna broad, slightly narrower in front ; 

 hind coxal plates extremely narrow externally, rectangularly dilated at inner 

 third ; legs moderate, tibiae slightly broader at tip ; tarsi slender, not lobed be- 

 neath, first joint of the posterior pair equal to the next two, claws slender. 



One species is known in our fauna. 



A. Druryi Kirby. — Castaneous or rufo-ferruginous, opaque or very feebly 

 shining, sparsely clothed with almost imperceptible brown pubescence; head 

 finely but not densely granulate, front with a finely imjiressed line ; thorax 

 broader than long, but variable in its extent, slightly narrower in front, sides 

 arcuate, but variably sinuate in front of the hind angles, which are slightly di- 



TEANS. AMEE. ENT. SOC. (7) FEBETJABY, 1886. 



