A REVISION OF NORTH AMERICAN CHRYSOBOTHRINI 



97 



Figuee 34. — Anterior tibia of male (A), clypeus (B), and last visible abdominal 

 sternite of male (C) and of female (D) of Chrysobothris speculifer. 



Male. — Broadly elongate, rather strongly depressed above, strongly shining, 

 uniformly reddish to purplish cupreous ; beneath uniformly cupreous, and more 

 strongly shining than above. 



Head brownish cupreous, with two small, irregular callosities on front, and a 

 narrow, smooth, longitudinal carina on occiput, carina bifurcate on vertex; 

 front moderately convex, surface confluently, coarsely, deeply ocellate-punctate, 

 sparsely clothed with long, semierect, whitish hairs, intervals densely granulose ; 

 clypeus broadly, shallowly, subangularly emarginate in front, arcuately rounded 

 on each side, with a distinctly elevated submarginal ridge parallel with emar- 

 gination. Antenna piceous, bronzy green basally, slightly narrowed to apex ; 

 intermediate segments not compact, slightly wider than long, subtruncate at outer 

 margins ; third segment slightly longer than fourth. 



Pronotum nearly twice as wide as long, subequal in width at base and apex, 

 widest at middle; sides arcuately converging anteriorly, more strongly converging 

 posteriorly, slightly constricted at base ; anterior margin sinuate, with a broadly 

 rounded median lobe ; base strongly angularly emarginate on each side, median 

 lobe moderately produced and broadly rounded; disk moderately convex, with 

 a shallow, irregular depression on each side near lateral margin, and a vague 

 median sulcus, and with an obsolete, narrow, smooth space opposite middle of 

 each elytron ; surface coarsely, deeply, irregularly punctate, more densely punc- 

 tate at sides, intervals densely granulose. 



Elytra slightly wider than pronotum, nearly twice as long as wide ; base of 

 each elytron not abruptly angulated at middle, but oblique externally ; sides 

 nearly parallel from humeral angles to apical third, then arcuately converging 

 to tips, which are separately broadly rounded ; lateral margins strongly serrate ; 

 basal depressions broad and very deep, limited externally by a strongly elevated 

 carina; humeral depressions shallow and "broad; surface glabrous, uneven, 

 coarsely, densely, deeply, irregularly punctate between the elevated, sparsely 

 punctate areas, intervals densely granulose. Each elytron with first costa 

 strongly elevated from apex to middle, with numerous irregular, sparsely punc- 

 tate, elevated spaces, and large, transverse, irregular, densely punctured areas. 



Abdomen beneath coarsely, densely, irregularly fossulate-punctate, sparsely 

 clothed with rather short, recumbent, white hairs, with more or less distinct 

 lateral callosities, intervals densely granulose ; last visible sternite broadly, 



416206—42- 



