Sept. i897 ] HaYWARD : CoLEOPTERA OFN. E. AMERICA. 13T 



Very close to simplex, but less elongate; thorax scarcely narrower at base than 

 apex, sides sinuate behind, hind angles rectangular; legs piceous or nearly 

 black, rarely rufo-piceous. Length, . 16-.20 inch ; 4-5 mm. . . planiusculum. 



Elytra very slightly wider than the thorax, finely striate, the outer stride very 

 fine, especially towards the tip, dorsal punctures large ; black, more or less 

 bronzed, depressed ; thorax nearly twice as wide as long, scarcely narrower 

 at base than apex, sides arcuate to base, hind angles obtuse, but not rounded ; 

 legs black. Length, .17-. 23 inch; 4.25-5.75 mm incertum. 



18. Basal impressions of thorax with the outer stria small, but distinct 19 



Basal impressions of thorax with the outer stria obsolete; larger species 20 



19. Thorax distinctly narrower at base than apex. 



Elongate, slender, very depressed ; piceous or nearly black, the elytra more 

 or less brownish ; thorax with the sides distinctly sinuate behind, hind 

 angles rectangular ; head large, scarcely narrower than the thorax ; elytra 

 slightly wider than the thorax, subparallel, deeply striato-punctate, all the strije 



entire; legs rufous. Length, .21-.25 inch; 4.25-5.25 mm grandiceps. 



Thorax very slightly narrower at base than apex. 



Moderately elongate, depressed ; head and thorax nigro-Ecneous, elytra 

 dark brown or piceous, moderately deeply striato-punctate on the disc, less 

 so at sides and tip, the five inner stride entire, the sixth and seventh abbre- 

 viated behind, the latter often wanting; thorax about one-half wider than 

 long, sides feebly sinuate behind, hind angles subrectangular ; legs rufous. 

 Length, . 19-.22 inch ; 4. 75-5.5 mm guexi. 



Slightly elongate, less depressed, nearly black, usually slightly aeneous or 

 bluish ; elytra less wide as compared with the thorax, striate nearly as in 

 guexi, the six inner striae entire, the seventh abbreviated behind or want- 

 ing ; thorax more than one half wider than long, sides obsoletely sinuate 

 behind, hind angles slightly obtuse; legs rufous. Length, .22-.25 inch; 

 5.5-6.25 mm fugax. 



20. Head and thorax nigro-aeneous, the latter with the hind angles rectangular or 



subobtuse ; elytra testaceous with darker traasverse bands or nigro-aaneous 

 transversely banded with testaceous, more or less deeply striato-punctate, the 

 six inner stricx entire, the seventh varying from entire to wanting; legs tes- 

 taceous or nearly rufous, the femora rarely darker. Length, .24-. 34 inch ; 

 6-8.5 "^t" transversale. 



21. Elytra each with a well-defined basal and another subapical spot pale; legs rufo- 



testaceous 22 



Elytra either immaculate or with a pale submarginal spot near the apex 23 



Elytra very pale testaceous, narrowly rufous or rufo-piceous along the suture to 

 behind the middle, where there is a large spot of the same color, often con- 

 nected with the margin by a narrow transverse line ; head and thorax nigro- 

 seneous ; elytra finely striato-punctate, the five inner stride entire ; legs testa- 

 ceous, the femora sometimes darker. Length, .17-.20 inch 4.25-5 mm. 



fuscicrum. 

 2fi.. Thorax distinctly narrower at base than apex, sides strongly arcuate in front, deeply 

 sinuate behind, hind angles rectangular ; elytra moderately deeply striato-punc- 

 tate, intervals convex. Length, .21-.25 inch; 5.25-6.25 mm.... ustulatum. 



