542 Coleopterological 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 trunciite but not otherwise moililicd. California. 



Elytral punctures coarse and rather sparse 3. iiiotiScliiilKkii 



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



prominent in l)oth sexes 4. luoiitaiilis 



Fifth ventral broadly emarginate at apex, tlie jtubescence bristling and black 



posteriorly. Rocky Mountains 5. iiitei'l'liptus 



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

 Elytral punctures coarse and sparse; body more obese and suboval. 



Prothorax subequal in width to the elytra, .shiuing and sparsely ])unc- 



tate r>. aniplicolliN 



Prothorax distinctly narrower than the elytra, more narrowed anteriorly, 

 subopa(iue and very densely punctate. 

 Hypomera coarsely rugose; antenna; stout toward apex. 



7. deiisicollis 



Hypomera more finely rugose; antenna; slender 8. pleiillS 



Elytral punctures smaller and feebler; body less olx'se. 



Elytral punctures sparse, the prothorax short and transverse. 



9. suhaeiieiis 

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



parallel 10. lliactllOSUS 



Lateral cilia of the prothorax much longer, coarser, bristling and dark in 



color 11. partialis 



6 — Elytra uniformly clothed with a.shy hairs; antenna; witli a distinct three- 

 jointed club 7 



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



transverse fascia near the apex 8 



*?■ — Ashy pubescense distinct and moderately long; pronotum densely sculp- 

 tured and dull. 

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

 rower than the elytra l"i. senilis 



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

 Penultimate antennal joint of the male strongly transverse; prothorax 



narrower than the elytra 13. clavicoriiis 



Penultimate joint nearly as long as wide; prothorax subei|ual in width 



to the elytra 14. iiiiiforiiiis 



Ashy pubescence very short and extremely .sparse; piononnn sparsely and dis- 

 tinctly punctured 1."). obscu I'd Ills 



8— Tibia; and tarsi clear rufous lO. extricatlis 



Tibiic and tarsi more obscure, black to dark ruf()-i)iceous in color. 



Elytra with two tolerably well marked denuded fasci;c behind the middle. 



Male with the fifth ventral black velvety -pubescent 17. caiiest-eilS 



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; iiubescence dense and very coarse; pronotal 



punctures distinct, the intersimces smooth li). lidcli 



