l'J'2 GEO. H. HORN, M. D. 



extends to the tips of the elytra. The females often have the elytra less 

 punctured posteriorly, although these two forms of sculpture are not 

 constant in either sex. The male antennae are twice as long as the body, 

 the female one and a quarter times. Length .64-1 .24 inch ; 16-31 mm. 



With this species I have united orcc/onfnsis Lee. the characters sepa- 

 rating them being evanescent. 



Occurs from Maine westward to Oregon and novtliward to the Hud- 

 son's Bay region. 



HI. coufiisoi* Kby. 



General surface color brownish, uniformly clothed with a line gray 

 pubescence with small patches of brown and white sparsely placed. 

 Apices of elytra in both sexes rounded, the sutural angle obtuse. The 

 elytral sculpture is feebler than in the preceding species, and the punc- 

 tures become rapidly finer toward the apex. The male antenna? are often 

 more than twice, in the female very little longer than the body, the sur- 

 face not pubescent in the male, uniformly gray pubescent in the female ; 

 1.10-1.24 inch; 28-31 mm. 



There seems to be less variation in the length of the spcciuit'iis of this 

 species than in those which precede. 



Occurs in Canada, New England and Middle States. 



M. inarniorator Kirby. 



General color dark brown, the surface moderately shining, the elytra 

 clothed with patches of ochreous, yellowish white and brown pubescence. 

 Apices of elytra obliquely prolonged and acute in both sexes. Surface 

 of elytra feebly sculptured, the punctures slightly rough at base and be- 

 coming rapidly finer near the apex. Antennae of female one and a 

 quarter times the length of the body, distinctly annulate from the third 

 joint. Length 1.00 inch; 25 mm. 



This species appears to be extremely rare, and I have not been able to 

 obtain more than two specimens, both females. 



There is no doubt in my mind that the species described by Kirby is 

 the same as that known by Randall's more recent name marmoratus, and 

 the Kirby name being the older should be restored. 



Occurs in Maine and Michigan. 



MONOHAMMUS Serv. 



M. titillator Fab. Syst. Ent. p. 172 ; Oliv. Ent. iv, 67, p. 85, pi. 16, fig. 109; Lee. 

 .Journ. Acad, ii, 2, p. 148. 



earolinensis Oliv. Enc. Meth. vii, p. 64,3; Ent. loc. cit. pi. 12, fig. 88. 

 dentator Fab. Ent. Syst. i, 2, p. 278 ; Beauv. Ins. p. 244, pi. ;;6, fig. b. 

 viinor Lee. New Species, 187?>, p. 2.31. 



