50 GEO. H. HORN, M. D. 



vergent, not carinate ; disc convex, a median impressed line more distinct poste- 

 riorly, surface granulate, but not densely ; elytra deeply jiunctato-striate, inter- 

 vals convex, finely punctate and granular near the base ; body beneath densely, 

 very finely punctate, the sides of the propectus granular. Length .34 - .50 inch ; 

 8.5-12.5 mm. 



Male. — Posterior '.tibia? fimbriate with rather long yellowish hairs at apical 

 third of inner edge ; first joint of hind tarsi fimbriate beneath. 



Female. — Posterior tibise^aud tarsi not fimbriate. 



There is considerable variation in form, size and color in this in- 

 sect, and specimens often occur with four depressions on the disc of 

 thorax. It is absolutely impossible to distinguish two species in our 

 fauna. 



Bonvouloir mentions the occurrence of a specimen in Astrabad 

 which he cannot distinguish from ours, and the differences given to 

 separate barbarus seem more forced than real. 



Occurs from Vancouver eastward to Canada and in the Atlantic 

 region as far south as Georgia. 



CEROPHYTIN.E. 



Head flat above, front gibbous, slightly prominent ; clypeus inflexed, mouth 

 inferior , antennae, iiectinate in the males, strongly serrate in the female ; elytra 

 wider at base than the thorax ; anterior coxal cavities narrowly open behind, the 

 posterior coxae depressed without plates, the trochanters rather long, claws pecti- 

 nate at base. 



Bonvouloir correctly remarks that the curious characters of the 

 genus Cerophytum have caused some discussion on the position it 

 should occupy. He admits it among the Eucnemides, but as a dis- 

 tinct group. Lacordaire (Genera iv, p. 244) makes it the type of 

 a distinct family, which he places between the Cebrionides and Rhipi- 

 cerides. In this I think Lacordaire more nearly correct than Bon- 

 vouloir, at the same time a relationship seems to exist with the Das- 

 cyllidse, especially the ti'ibe Artematopini {Macropogo^iini Lee.) 



One genus is known. 



CEROPHYTlIfl Latr. 



Eyes large, round, prominent ; labrum not visible ; mandibles slender, arcuate, 

 prominent, acute at tip; last joint of maxillary jialpi securiform ; thorax trans- 

 verse, the hind angles slightly prominent, the lateral margin very obtuse ; scutel- 

 lum triangular ; prosternum lobed in front, the sutures simple, slightly arcuate, 

 but not divergent in front, the apical process imperfectly received in the excava- 

 tion of the mesosternum ; metasternal episterna gradually wider behind, epimera 

 not visible ; posterior coxfe on the same plane as the ventral segments, the outer 

 extremity in contact with the elytra ; legs moderate, the anterior femora grooved 



