ROLAND HAYWARD. 93 



12. Head alutaceous 13. 



Head not alutaceous 17- 



13. Moderately broad, slightly convex : dull bluish black, rarely slightly seneous 



elytra often with a small subraarginal pale spot about one-fourth from 

 apex ; legs black. Length .16-.22 inch coloradeiise n. sp. 



Slightly depressed ; nigro-aeneous, the elytra usually with ill-defined paler 

 markings ; thorax with the sides feebly sinuate behind ; hind angles 

 subrectangular ; elytra moderately finely striate ; legs varying from 

 dark rufous to black. Length .17-.23 inch. approxiinaS.li ill Lee 



More or less convex ; elytra either with paler markings or testaceous with 

 darker markings 14. 



14. Thorax squarely truncate at base 15. 



Thorax slightly obliquely truncate each side at base; elytra testaceous with 



darker markings 16. 



15. Hind angles of thorax obtuse. 



Elytra distinctly wider than the thorax ; nigro-aeneous. elytra seueo-piceous 

 with ill-defined paler markings ; thorax with the sides arcuate, ob- 

 soletely sinuate in front of the hind angles; legs rufo-testaceous. 



Length .15-.20 inch iiidistiiicluin Dej- 



Elytra very slightly wider than the thorax ; less convex ; head and thorax 

 viridi-aeneous, elytra fuscous with a humeral lunule, a transverse 

 fascia behind the middle and the apex testaceous; thorax with the 

 sides arcuate to base; legs rufo-testaceous. Legs .16-. 18 inch. 



seneicolle Lee. 

 Hind angles of thorax rectangular. 



Nigro-aeneous. elytra marked nearly as in graciliforme, the markings ill- 

 defined, moderately deeply striate; head rather finely alutaceous; 

 legs varying from rufous to piceous. Length .20.24 inch. 



dentellum Thunh. 

 Brown-bronze, elytra testaceous, marked somewhat as in cordafum. the 

 markings broader and ill-defined ; head and thorax very distinctly 

 alutaceous; legs rufo-testaceous. Length .17-.19 inch. 



versutum Lee. 

 Nigro-aeneous, elytra either testaceous variegated with black, or black va 

 riegated with testaceous, the markings well defined. 



Legs testaceous. Length .14-19 inch variegatiiiii .Say. 



Legs dark piceous or black. Length .13 -.16 inch iiigripes Kirby. 



16. Thorax quadrate, the sides rather feebly arcuate in front, slightly sinuate 



behind. 



Elongate ; head and thorax aeneous ; elytra slightly wider than the thorax 

 with a sub-basal spot, a small spot on the third interval about one- 

 third from base, a transverse fascia about the middle and another 

 between this and the apex nearly black ; striae moderately deep ; legs 

 testaceous. Length .15-.20 inch variolosuiii Mots. 



Less elongate ; head and thorax cui)reo-aeneous ; elytra nearly one-half 

 wider than the thorax, moderately finely striate, with cloud-like 

 markings fuscous, arranged nearly as in variolusam, hut often not 

 clearly defined ; legs testaceous. Length .15-. 17 inch. 



unibratiiiii Lee. 



TR.\NS. AM. ENT. SOC. XXIV. MARCH, 1897. 



