236 MISC. PUBLICATION 47 0, U. S. DEPT. OF AGRICULTURE 



Figuee 102. — Clypeus (A), and last visible abdominal sternite of male (B) and 

 of female (C) of Chrysobothris atrifasciata 



Female. — Broadly elongate, moderately convex above, subopaque, uniformly 

 bronzy green, with a slight golden tinge, elytra ornamented with purplish-black 

 spots; beneath bronzy green. 



Head bronzy green in front, becoming cupreous on vertex and occiput, indi- 

 stinctly, longitudinally carinate on occiput, with a vague, transversely arcuate 

 line on vertex; surface coarsely, confluently ocellate-punctate on front, densely 

 punctate on vertex and occiput, sparsely clothed with short, inconspicuous hairs ; 

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

 on each side. Antenna brownish cupreous, slightly narrowed to apex ; inter- 

 mediate segments not compact, subtriangular, about as long as wide, acutely 

 rounded at outer margins ; third segment nearly as long as following three 

 segments united. 



Pronotum twice as wide as long, distinctly narrower at apex than at base, 

 widest near middle ; sides arcuately rounded ; posterior angles obtusely rounded ; 

 anterior margin slightly sinuate, with a vague, broadly rounded, median lobe; 

 base transversely sinuate on each side, median lobe strongly produced and 

 broadly rounded ; disk moderately convex, without depressions or callosities ; 

 surface glabrous, coarsely, densely, irregularly punctate, intervals finely 

 granulose. 



Elytra subequal in width to pronotum, one and two-thirds times as long as 

 wide; sides parallel from humeral angles to apical third, then arcuately con- 

 verging to tips, which are separately very broadly rounded, but not extending 

 to tip of abdomen; lateral margins finely serrate; basal depressions small and 

 very deep ; humera] depressions broad and very shallow ; surface glabrous, 

 without foveae or distinct costae, coarsely, confluently' punctate, intervals finely 

 granulose, each elytron ornamented with purplish-black spots as follows : A 

 transversely triangular spot at basal fourth, a triangular spot which is emargi- 

 nate externally just behind middle, and an obliquely oblong spot near apex. 



Abdomen beneath rather coarsely, densely, irregularly punctate, indistinctly 

 pubescent, without smooth lateral callosities, intervals vaguely granulose ; last 

 visible sternite broadly, sinuately subtruncate at apex, without a submarginal 

 ridge, lateral margins not serrate ; eighth tergite finely, densely punctate, finely 

 granulose, broadly rounded at apex. Prosternum convex, coarsely, sparsely, 

 irregularly punctate, nearly glabrous, without a distinct median lobe in front. 

 Anterior femur with a short, rather acute, triangular tooth, which is not dentate 

 on outer margin. Anterior tibia slightly arcuate, unarmed at apex ; middle and 

 posterior tibiae straight. 



Length 15 mm., width 5.5 mm. 



Redescribed from the female lectotype, No. 2709, in the Museum of 

 Comparative Zoology, Cambridge, Mass. 



