542 Goleopterological Notices, VI. 



Smaller species, 3 mm. or less in length 6 



3 — Pubescence noticeably long 4 



Pubescence short 5 



4 — Fifth ventral of the male truncate but not otherwise moditiefl. California. 



Elytral punctures coarse and rather sjmrse 3. iiiotsclllllskii 



Elytral punctures smaller and denser; body more elongate; eyes more 



prominent in both sexes 4. inoii tan lis 



Fifth ventral broadly emarginate at apex, the pubescence bristling and black 



posteriorly. Rocky Mountains 5. iiiterriiptus 



5 — Lateral cilia of the prothorax very short and nearly white as usual. 

 Elytral punctures coarse and sparse ; bodj^ more obese and suboval. 



Prothorax subequal in width to the elytra, shining and sparsely piiuc- 



tate 6. amplicollis 



Prothorax distinctly narrower than the elytra, more narrowed anteriorly, 

 subopaque and very densely punctate. 

 Hypomera coarselj^ rugose; antennae stout toward apex. 



7. deiisicollis 



Hypomera more finely rugose; antennse slender 8. pleiillS 



Elytral punctures smaller and feebler ; body less obese. 



Elytral punctures sparse, the prothorax short and transverse. 



9. subaeiieus 

 Elytral punctures close-set ; prothorax longer ; body narrower and more 



parallel 10. maculosiis 



Lateral cilia of the prothorax miich longer, coarser, Ijristling and dark in 



color 11. pardalis 



6 — Elytra uniformly clothed with ashy hairs; antennae with a distinct three- 

 jointed club 7 



Elytra with confusedly denuded spots, generally with a more or less distinct 



transverse fascia near the apex 8 



T — Ashy pubescense distinct and moderately long; i>ronotum densely sculp- 

 tured and dull. 

 Elytral pubescence very dense; prothorax feebly transverse and much nar- 

 rower than the elytra 12. senilis 



Elytral pubescence distinctly sparser, the body smaller and less elongate. 

 Penultimate antennal joint of the male strongly transverse; prothorax 



nan-ower than the elytra 13. clavicornis 



Penultimate joint nearly as long as wide; prothorax subequal in width 



to the elytra 14. iiniforniis 



Ashy pubescence very short and extremely sparse; pronotum sparsely and dis- 

 tinctly punctured l.j. obsciirelliis 



S — Tibiae and tarsi clear rufous 10. extricatiis 



Tibiae and tarsi more obscure, black to dark rufo-piceous in color. 



Elytra with two tolerably well marked denuded fasciie behind the middle. 



Male with the fifth ventral black velvety-puljescent 17. canescens 



Male without modified pubescence on the fifth ventral. ..18. difliicilis 



Elytra with the subapical fascia alone distinct, the other resolved into two 



strongly V-shaped spots; pubescence dense and very coarse; pronotal 



punctures distinct, the inteispaces smooth 19. fideli 



