290 GEO. H. HORN. 



2. — Elytral strise deeply impressed from base to apex, intervals slightly convex ; 



maxillary palpi stout fiiiibi'iatiis. 



Elytral strife not deep ; intervals flat. 

 Form rather broadly oval ; strife fainter at base ; elytra almost entirely 



pale; maxillary palpi stout luniger. 



Form rather oblong; strise obliterated at apex; elytra dark, pale at tip . 



maxillary palpi slender depressus. 



3. — Metasternal area limited to the middle of the metasternum (PI. ix, fig. 2). - 4- 

 Metasternal area extended by an oblique line which is directed obliquely 



toward the anterior angle (PI. ix, fig. 1) 12. 



4. — Lateral marginal line of thorax extended for a distance along the basal 



margin 5. 



Lateral marginal line reaching the hind angles only 6. 



5. — Elytra reddish testaceous, a large oval piceous spot on the suture behind the 

 middle, which extends narrowly to the apex : thorax slightly narrowed 



at base unipuncfatus. 



Elytra entirely rulb-testaceous or somewhat darker ; thorax regularly nar- 

 rowed from base to apex quisquilius. 



6. — Interval between the seventh and eighth strije normally wide, at least bi- 



seriately punctate 7. 



Interval' between these strise narrow and uniseriately punctate 11. 



7. — Species oval, never very convex, head oblique 8. 



Species short, very convex, head vertical ; punctuation of the elytral inter- 

 vals more indistinct than that of the thorax 13. 



8. — Elytra piceous black, with a sharply limited yellowish white space extend- 

 ing along the side toward the base 9. 



Elytra rufo-testaceous, castaneous or piceous, the apex indefinitely paler; 



sides of thorax paler 10. 



9. — Eighth interval at least biseriately punctulate ; mesosternal elevation narrow. 

 Elytral strise rather deeply impressed at apex ; apical pale region large, 



always extended to the humeral angle prtetextatus. 



Elytral strise very faint at apex; apical pale region narrower, rarely 



reaching the humeral angle inariiiiis. 



10. — Elytral intervals distinctly punctulate, nearly equally with the thorax. 

 Palpi and antennse piceous ; elytra rufo-castaueous, paler at apex. 



fulvipenuis. 

 Palpi and antennae pale. 



Elytra rufo-castaneous, indefinitely paler at apex lateralis. 



Elytra piceous, a common indefinite jmle space divided by the suture, 

 near, but not reaching the apex, humeral umbone paler. 



indistiiictus. 

 Elytral intervals scarcely at all punctulate ; thorax distinctly punctulate. 



aduiiibratus. 

 11. — Color almost entirely testaceous ; head, median space of thorax and humeral 



space piceous variegatus. 



Color piceous, elytra with an indefinite pale space at apex aiialis. 



Elytral strife rather feeble; apical pale space sharply limited by an arcuate 

 line and not extending along the side margin; mesosternal elevation 



oval ocellatus. 



