412 Coleopterological Notices, VII. 



Massachusetts, Rhode Island, New York (Long Island), North 

 Carolina (Asheville), Iowa (Iowa City) and Colorado. A com- 

 mon species, to be readily known by the black color, with ruby 

 elytra becoming blackish toward tip, subobsolete sutural but 

 well developed subhumeral impressions of the elytra and small 

 clj'peal tooth. The description is taken from the male; in the 

 female the form is a trifle stouter, and the antennae are a little 

 shorter, the third joint being exactly quadrate, the fourth a little 

 longer than wide, fifth a third longer. The antennae are fre- 

 quently dusk}', with the last joint paler. 



18. C. novelluni n. sp. — Moderately stout, polished, impunctate, black- 

 ish-piceous, the elytra dark red throughout; antennse dark brownish-red, the 

 legs paler; vestiture ]ong and abundant, erect, even and rather pale on the 

 elytra. Head well developed, distinctly wider than long, subcircularly 

 rounded behind the eyes, which are moderately large and quite convex; anten- 

 nal tubercles scarcely visible, the front very obsoletely impressed; clypeus well 

 developed, even, rectilinearly transverse at apex and with a very minute but 

 acute and somewhat reflexed marginal tooth. Antennx slender, about 3^2 ^s 

 long as the body, the club slender and quite gradual in formation; second 

 joint subcylindric, nearly % longer than wide, as long as the next two and 

 much thicker; three to six very nearly equal among themselves, cylindric or 

 just visibly obconic and about I4 longer than wide; seventh very slightly 

 wider, cylindric, ^^5 longer than wide; eighth 13 wider than the seventh, 

 rounded at apex, fully as long as wide or a little longer; ninth nearly ^^ wider 

 than the eighth, about as long as wide; tenth equal in width to the ninth, 

 distinctly wider than long; eleventh scarcely visibly thicker, long, acutely and 

 obliquely pointed, distinctly shorter than the two preceding. Prothorax conic, 

 about as long as wide, the sides very feebly arcuate; apex rather more than }4. 

 as wide as the base, the latter nearly ^g wider than the head; surface per- 

 fectly even. Elytra % longer than wide; fully twice as long as the prothorax 

 and nearly % wider, each somewhat narrowly rounded at apex, widest before 

 the middle, with the sides evenly arcuate; humeral plica long and strong, the 

 subhumeral impression large and pronounced; inner fovea distinct, the outer 

 feeble; subsutural impressions large, oblique, strong and coalescent, the suture 

 very finely and indistinctly beaded and only at the base. Legs well developed; 

 four posterior femora rather feebly, the anterior more strongly, clavate. 

 Length 1.35 mm.; width 0.6 mm. 



Mississippi (Starkville). Mr. H. E. Weed. 



This species is quite isolated, even when compared with its im- 

 mediate neighbors, because of its small size and short ventriculate 

 hind body. It is allied more closely to brevicorne than any other 

 species, differing strongly, however, in its long and pronounced 

 humeral plica and attendant impression. The three specimens 

 before me do not exhibit marked sexual peculiarities. 



