AMERICAN COLEOPTERA. 65 



tured and more oblique towards the base, tip more broadly subtruncate and 

 rounded. Length .25 inch; 6 mm. 



California; Mr. Crotch. 



V. convexa. — Blackish-brown, elongate cylindrical, covered with fine 

 sericeous pubescence; prothorax more distinctly punctured, convex, side mar- 

 gin much narrower; elytra with the strise deeper, distinctly punctured, more 

 oblique towards the base, interspaces convex. Length .28 inch; 7 mm. 



California; Mr. Ulke and Dr. Thevenet. Differs from the two 

 preceding by the narrower side margin of the prothorax and wore 

 convex elytral interspaces. One specimen has the elytra testaceous 

 with dusky sides ; it is probably not quite mature. 



EUCERATOCERUS, n. g. {Ptilinini.) 



Body cylindrical, clothed with fine subsericeous pubescence, very 

 finely punctulate, elytra with very indistinct fine strias. Head 

 rounded, not received into the prothorax beneath, eyes rather large, 

 finely granulated, not very prominent; palpi rather long, as in Ptili- 

 niis, but a little stouter, last joint elongate oval ; antennae with the 

 1st joint nearly as long as the 3d, 2d small, 3d ani following sub- 

 equal, about three times as long as wide, each with an oblique basal 

 process longer and as broad as the joint itself, except that of the 2d, 

 which is shorter and broader. Legs slender, tarsi longer than the 

 tibise, Ist and 2d joints long, 3d and 4th small, 5th as long as the two 

 preceding, claws small, distant. 



A singular genus, closely allied to Ptilinus, differing chiefly by the 

 form of the antennae, the larger and less prominent eyes, and the 

 longer and more slender tarsi. 



E. Hornii. — Cylindrical, elongate, dark piceous, clothed with fine gray 

 pubescence producing a leaden lustre; elytra with very fine indistinct punc- 

 tulate strise; anteunse and legs a little less dark in color. Length .25 inch; 

 4 mm. 



One specimen, Texas ; Mr. Belfrage. The antennae are more than 

 half the length of the body, the 10th and 11th joints are unfortun- 

 ately broken off. 



It gives me great pleasure in the name of this very interesting ad- 

 dition to the fauna, to express my appreciation of the excellent labors 

 of my friend. Dr. G. H. Horn, in investigating the Coleoptera of the 

 United States. 



P0L.YCA01V Lap. 

 P. plicattlS.— Black, shining, thinly clothed with long erect yellowish 

 hairs; head large, very densely and finely granulato-punctate, granules be- 



TRANS. AMER. ENT. SOC. (9) MARCH, 1874. 



