A EEVISION OF NORTH AMERICAN CHRYSOBOTHRINI 



47 



(10) Chrysobothris grindeliae Van Dyke 



(Fig. 10 ; fig. 112, C) 



Chrysobothris grindeliae Van Dyke, 1937, Brooklyn Ent. Soc. Bui. 32 : 111-112. 



D 



Figure 10. — Anterior tibia of male (.4), clypeus (B), and last visible abdominal 

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



Male. — Broadly elongate, moderately convex above, rather strongly shining, 

 uniformly bronzy brown, with a faint greenish tinge; beneath brownish cupre- 

 ous, and more strongly shining than above. 



Head bright green, becoming cupreous on occiput, with two vague, irregular, 

 smooth callosities on front, and a vague, longitudinal carina on occiput ; front 

 nearly flat ; surface densely, coarsely punctate, sparsely clothed with fine, semi- 

 erect, inconspicuous hairs, intervals smooth ; clypeus broadly, arcuately emargi- 

 nate in front, broadly rounded on each side. Antenna bronzy green, gradually 

 narrowed to apex; intermediate segments compact, transverse, subtruncate at 

 outer margins; third segment subequal in length to fourth. 



Pronotum two-thirds wider than long, subequal in width at base and apex, 

 widest at middle ; sides arcuately rounded, slightly more strongly converging 

 posteriorly ; posterior angles obtusely rounded ; anterior margin moderately 

 sinuate, with a broadly rounded, median lobe ; base broadly, arcuately emargi- 

 nate on each side, the median lobe broadly rounded; disk uniformly convex, 

 vaguely gibbose laterally, with a vague, smooth callosity on each side of middle ; 

 surface coarsely, densely, irregularly punctate, slightly rugose at sides, sparsely 

 clothed with long, erect, fine hairs, intervals indistinctly granulose. 



Elytra at base slightly wider than pronotum at middle, twice as long as wide ; 

 sides nearly parallel from humeral angles to behind middle, then arcuately 

 converging to tips, which are separately broadly rounded ; lateral margins 

 slightly serrate posteriorly ; basal depressions broad and deep ; humeral de- 

 pressions vaguely indicated; surface finely, densely, irregularly punctate, sparsely 

 clothed with moderately long, fine, semierect hairs, intervals vaguely granulose. 

 Each elytron with three indistinct, longitudinal costae and three vague f oveae ; 

 a broad fovea in front of middle and two smaller ones near apical third. 



Abdomen beneath rather densely, coarsely, irregularly punctate, sparsely, 

 irregularly clothed with moderately long, recumbent and semierect, whitish 

 hairs, without smooth lateral callosities, the intervals slightly granulose ; last 



