44 THE CANADIAN ENTOMOLOGIST. 



the strongly declivous apex, one oblique just behind the middle and 

 a short longitudinal median ridge basally, the ground surface finely, 

 sparsely tuberculose. Length 1 5.5-1 6.0 mm.; width 6.3 mm, 



California (Monterey), Dunn plicaius, Lee. 



Body nearly similar but much smaller and relatively narrower, the 

 elongate prothorax with coarser tubercles toward the sides and finer 

 and sparser elsewhere, the inequalities of the surface nearly as in 

 plicaiiis, but with the elevations more pronounced; elytra not {$) ox 

 but slightly ( $ ) wider than the prothorax, with the principal 

 elevations nearly as in plicatus, but with the ground surface more 

 coarsely pitted and still more minutely tuberculose. Length 

 14. 0-15. 5 mm,; width 4.7-5.7 mm. California, Cab. Levette 



iorvus, n sp. 

 3. Form relatively broader and more parallel, the prothorax less narrowed 

 at base, flat above, and not longer than wide, with many unevenly 

 disposed tubercles, the elevations of the same general form as in the 

 two preceding but very much feebler; elytra not wider than the 

 prothorax, scarcely more than one-half longer than wide, sculptured 

 nearly as in the preceding, the longitudinal basal ridge more acutely 

 elevated. Length 16.0 mm.; width 6.2 mm. California, Cab. 

 Levette collar is, n. sj). 



The species described by G. H. Horn under the name emargiiiatus I 

 have not seen; it occurs in Texas. N'oserus ^x&iiCiy resembles Nosoder?na 

 in facies, but differs in its slightly grooved tarsi, and in having a feeble 

 antennal groove anteriorly. 



Phellopsis, Lee. 



This genus resembles Nosoderma in having the tarsi not grooved and 

 the antennal cavities wholly wanting, but differs greatly in facies and in 

 having eleven free antennal joints. Dr. Horn surmises in the " Classifi- 

 cation," that porcala, qf LeConte, may be only a variety oiobcordata, Kirby, 

 and it is so indicated in the Henshaw list, but the two forms are in reality 

 well differentiated species. The four species in my cabinet may be readily 

 known as follows : 



I. Outer of the two discal ridges of each elytron obsolete at about a fourth 

 of the total length of the elytra from the base ; sides of the elytra 



parallel . 2 



Outer ridge obsolete much nearer the base, this distance being a sixth 

 or seventh of the total length ; sides of the elytra feebly converging 

 from the rounded humeri to the subapical tumidity 4 



