Sept. 1897 ] HaYWARD : COLEOPTERA OF N. E. AMERICA. 139 



30. Thorax narrower at base than apex 3' 



Thorax not perceptibly narrower at base than apex 38 



31. Form depressed ; all the strise of the elytra entire 32 



Form more or less convex 33 



32. Head and tliorax coarsely alutaceous, cupreo-reneous, elytra testaceous with a 



humeral spot, a small oblong spot on third interval, about one-third from base, 

 and two transverse bands bronzed or nearly black, the first slightly behind the 

 middle, the second about one-fourth from apex, the last three connected by a 

 narrow sutural line ; thorax cordate, nearly twice as wide as long ; base of an- 

 tenna; and legs testaceous. Length, .20-. 24 inch ; 5-6 mm cordatum. 



Dark viridiseneous, elytra with the apex, a subapical spot, and rarely a short 

 transverse band in front of the middle testaceous ; head and thorax aluta- 

 ceous, the latter subf^uadrate, slightly narrower at base than apex, sides at most 

 obsoletely sinuate behind, hind angles obtuse; legs rufous or rufo-piceous. 

 Length, .15-. 18 inch; 3-75-4-5 nim intermedium^ 



33. Elytra with all the strias entire ; thorax more or less cordate 34 



Elytra with several striae abbreviated behind 35 



34. Head and thorax nigro aeneous, the former finely alutaceous; elytra osneo-pice- 



ous with a subhumeral blotch, a transverse band behind the middle and some- 

 times the apex paler, the markings ill-defined ; form elongate ; legs testaceous. 

 Length, .20-23 inch; 5-5.75 mm graciliforme. 



Head and thorax viridiaeneous, alutaceous, elytra testaceous with a transverse 

 band slightly behind the middle, another between this and the apex and some- 

 times a subbasal cloud fuscous, striae scarcely less deep at tip ; legs testaceous. 

 Length, .16-. 18 inch; 4-45 mm viridicolle. 



Dark viridi-aeneous, elytra usually with a narrow transverse band abnut one-third 

 from base, another about one-third from apex and an apical spot testaceous, the 

 three usually connected along the margin ; head alutaceous ; elytral striae 

 much finer at tip ; legs testaceous. Length, .16-. 18 inch ; 4-4 5 mm. 



fraternum. 



Much smaller, elongate ; head and thorax black or slightly a:neous, the former 

 very finely alutaceous ; elytra varying from testaceous with black markings to 

 nearly black with paler markings; legs rufous. Length, .10-. 13 inch; 

 2.5-3. 25 mm timidum. 



35. Thorax with the hind angles distinctly carinate 36 



Thorax with the hind angles very finely or not carinate ; head distinctly aluta- 

 ceous ; larger species 37 



36. Head at most very finely alutaceous; form and color nearly as in timidum, but 



slightly more elongate and more convex, with the sides of the thorax usually 

 more deeply sinuate behind ; elytra with the first and second strise entire, the 

 fifth represented by a groove at tip; legs testaceous. Length, .10-. 13 inch ; 



2.5-3.25 mm versicolor. 



Head not alutaceous ; robust; black, slightly aeneous; sides of thorax arcuate in 

 front, oblique behind, hind angles obtuse; elytra slightly wider than the 

 thorax, with the first, second and fifth striae entire; legs piceous. Length, 

 .11-. 13 inch; 2.75-3.25 mm morulum. 



37. Moderately convex, elongate ; aeneous or nigro-ceneous, elytra with the apex, a sub- 



