38 THE CANADIAN ENTOMOLOGIST. 



ZoPHERODEs, n. gen. 

 The species of this genus, so far as known to me, are all deep black, 

 without pale ornamentation and with comparatively fine sculpture, the 

 pronotum always punctate. Those in my cabinet may be readily known 

 as follows : 



1. Elytra subcylindrical, more abruptly narrowed at base and toward 



apex ; pronotum strongly convex 2 



Elytra evenly oval in outline; pronotum usually less convex 3 



2. Pronotal punctures not larger or denser toward the sides. Body 



moderately stout, dull in lustre, the prothorax as long as wide, 

 angulate at the sides anteriorly, not strongly or muricately, sparsely 

 and evenly punctate, each puncture with a short yellowish seta ; 

 elytra rather wider than the prothorax, three-fourths longer than 

 wide, with uneven series of large flattened elevations, the interstices 

 with smaller elevations of the same kind, all with a small setulose 

 puncture at their hind margins. Length 15,0 mm.; width 5.9 mm. 



Arizona (Gila Valley), Dunn nequalis, n. s]). 



Pronotal punctures strong but not muricate, uneven in distribution, 

 denser and coarser toward the sides. Body nearly similar, the 

 prothorax less strongly angulate at the sides anteriorly, the surface 

 more coarsely punctate, the elytra not wider than the prothorax, 

 the uneven tuberculose sculpture less definitely lineate; prosternum 

 more clearly, very coarsely punctate ; abdomen similarly coarsely 

 punctate. Length 12. 0-16.0 mm.; width 4.5-6.4 mm. Arizona.. 



iristis, Lee. 



3. Elytra tuberculose 4 



Elytra without tubercles, the surface smooth, alutaceous, with sparse 



vermiculate incised lines ; prosternum tuberculose 11 



4. Integuments polished. Form moderately stout, very convex, the pro- 



thorax scarcely as long as wide, the sides very feebly angulate before 

 the middle, constricted at base as usual, coarsely, sparsely, irregularly 

 and simply punctate, closely toward the sides; elytra as wide as tlic 

 prothorax, rather less than twice as long as wide, coarsely, very 

 strongly, closely and more or less irregularly tuberculose; prosternum 

 roughly punctured and tuberculose. Length 14.5-16.5 mm.; width 



5.4-6.4 mm. New Mexico concolor, Lee. 



Integuments more or less dull in lustre 5 



5. Elytra but little more than one-half longer than wide. Form stout, 



the prothorax nearly as long as wide, rounded at the sides, the latter 



