COLEOPTERA OF SOUTHERN CALIFORNIA. 209 



mentioned, and being moreover subject to some indi- 

 vidual variation are difficult to define. 



Striae of elytra effaced at apex. 



Clypeal emarginaticm truncate at middle; front rather deeply and 

 sharply transversely impressed, vertex smooth. [New York, 



Kansas, California (Le Conte) ] D. terminatus LEG. 



Clypeal emargination bidentate at middle. 



Strial punctures coarse, front and vertex smooth, front rather 

 deeply transversely impressed; size larger. [Kansas, Ohio 



(Le Conte) ] D. hcemorrhoidalis LEG. 



Strial punctures comparatively fine, front and vertex rugose, 

 front scarcely or feebly transversely impressed, size smaller. 



(Texas Luling and El Paso) D. duplicatus, sp. nov. 



Striae of elytra very feeble but traceable at apex; strial punctures fine, 

 front and vertex rugose, front scarcely or feebly transversely im- 

 pressed; clypeal emargination bidentate. (Massachusetts, eastern 



New York) , D. qffinis, sp. nov. 



Striae distinct at apex, and coarsely punctate; front smooth, not dis- 

 tinctly transversely impressed; clypeal emargination bidentate. 

 (California Colorado Eiver) D. analis LEG. 



Of the above species, D. duplicatus and D. affinis are 

 most closely related and may prove to be geographical 

 races of the same species; both are quite distinct from 

 hcemorrhoidalis . 



3. Schizogenius seticollis, sp. nov. 



This name is proposed for a species which has been quite widely dis- 

 tributed under the name S. pluripunctatus, from which and from all other 

 species known it is distinguished by the prothorax having seven or eight 

 marginal setae instead of the usual two. The form is only moderately 

 depressed, the color black, legs piceous or rufopiceous, the tibiae and tarsi 

 usually paler. The alternate elytral intervals beginning with the third 

 are 10-12 setose. 



Length, 4-5 mm. 



Generally distributed west of the mountains and 

 rather common at Pomona, Pasadena, Riverside, and 

 other places in Southern California, and as far north as 

 Sylvania (Ricksecker). 



14 October 14, 1901. 



