LeConte.] 



HYLUROINI. 381 



PHLJEOSINUS Eic-hhoff. 



In this genus the funicle of the antennae is much shorter than the club, 

 the first joint is rounded, the remaining four joints are closely united and 

 gradually become broader ; the club is large, oval, compressed, obtusely 

 rounded, and divided by straight well-marked sutures. The front coxae 

 are moderately distant. The tibiae are acutely serrate ; the tarsi have the 

 joints 1-3 equal, the third bilobcd ; the fifth is nearly equal to the others 

 united. I have erroneously mentioned the funicle of the antennae of these 

 species as 6-jointed, in the memoir cited below. 



Pubescence fine, sparse, declivity of elytra with first 

 and third interspaces more elevated, and more 



strongly tuberculate 1 . serratus. 



Pubescence fine, sparse, declivity of elytra with third 



interspace elevated behind 2. cristatus. 



Pubescence fine, less sparse, declivity of elytra more 

 finely tuberculate, or serrate, nearly equal in con- 

 vexity 3. dentatus. 



Pubescence fine, less sparse, striae of elytra strongly 

 punctured, second interspace depressed on the de- 

 clivity, the others serrate with acute tubercles, 

 nearly equal in convexity 4. punctatus. 



1. P. serratus Lee., Tr. Am. Ent. Soc. 1868, 170. 



New York, one specimen. This species is cited in the Munich Catalogue 

 as undescribed. The diagnosis given on page 169 of my memoir, and the 

 explanatory remarks under the next species contain all the information 

 necessary to distinguish it from the common and well known P. dentufuK. 

 Any length}' description would be unnecessary, as it only differs by larger 

 size, and by the first and third interspaces being strongly elevated and ser- 

 rate behind. The pubescence is shorter, and seems less dense than in P. 

 dentatui, but this may be produced by abrasion. Length 3.5 mm.; .14 inch. 



The striae arc distinctly punctured; the interspaces wide, densely and 

 strongly granulate and rugose. The front is very slightly carinate. 



2. P. .cristatus Lee., Tr. Am. Ent. Soc. 1868, 170. 



California; cabinet of Mr. Ulke. I have no specimen of this species, and 

 can only say that it differs from the preceding by the larger size (4 mm.; 

 .16 inch); and by the sutural interspace being less elevated than the third, 

 though also serrate. 



3. P. dentatus. Hylurgus dent. Say, Journ. Acad. Nat. Sc. Phil, v, 258; 

 ed. Lee., ii, 319. 



Middle and Eastern States and Canada; depredates on Juniperus. Smaller 

 than the two preceding, with the declivity of the elytra more abrupt and 

 . flattened, and less convex; the striae are impressed and scarcely punctured, 

 the interspaces are wide, densely and strongly granulate and rugose; the 

 rugosities becoming acute tubercles on the declivity of the alternate inter- 

 spaces; second interspace not depressed on the declivity, and furnished 



