A REVISION OF NORTH AMERICAN CHRYSOBOTHRINI 



227 



pi. 7, figs. 232-236 (part) ; Ulke, 1902, U. S. Natl. Mus. Proc. 25: 21, 47; 

 Felt, 1906, N. Y. State Mus. Mem. 8: 701; Smith, 1910, N. J. State Mus. 

 Rpt. (1909): 293; Blatchley, 1910, Coleoptera of Indiana, pp. 789, 792; 

 Knull, 1922, Canacl. Ent. 54: 83; 1925, Ohio State Univ. Studies 2 (2): 

 28, 34-35; Chamberlin, 1926, Cat. Buprestidae North Amer., pp. 169-170 

 (part); Leonard, 1928, N. Y. (Cornell) Agr. Expt. Sta. Mem. 101: 360; 

 Obenberger, 1934, in Junk (pub.), Coleopt. Cat., pt. 132, pp. 649-650 

 (part) ; Brimley, 1938, Insects of North Carolina, p. 172. 

 Chnjsobothris chlorocephala Packard (not Gory), 1890, U. S. Ent. Comn. 

 Rpt. 5 : 69 ; Hamilton, 1891, Insect Life 4 : 130. 



Figure 97.— Anterior tibia of male (A), clypeus (B), and last visible abdom- 

 inal sternite of male (O) and of female (D) of Chrysobothris concinnula. 



Male. — Rather narrowly elongate, slightly convex above, strongly shining; 

 yiolaceous brown, with distinct bluish and bronzy-green tinges in different 

 lights, pronotum slightly greenish at sides and elytra ornamented with 

 violaceous-blue spots ; beneath bluish or purplish black, with sternum, and 

 legs in part, more or less bronzy green. 



Head bright green, with an obscure, smooth, longitudinal carina on occiput, 

 carina vaguely bifurcate on vertex, where the surface is slightly depressed; 

 front slightly convex; surface very coarsely, deeply, irregularly, confluently 

 punctate, and indistinctly pubescent ; clypeus deeply, narrowly, angularly emar- 

 ginate in front, obliquely truncate on each side. Antenna cupreous, with basal 

 segments greenish, slightly narrowed to apex ; intermediate segments compact, 

 subtriangular, as wide as long, broadly rounded at outer margins ; third 

 segment nearly as long as following three segments united. 



Pronotum one-half wider than long, wider at base than at apex, widest 

 near apex ; sides strongly rounded near apices, obliquely converging and 

 slightly sinuate from near apical angles to posterior angles ; anterior margin 

 slightly sinuate, with median lobe indistinctly rounded ; base broadly, arcuately 

 emarginate on each side, median lobe slightly produced, and narrowly sub- 

 truncate in front of scutellum ; disk slightly convex, without depressions or 

 callosities ; surface sparsely, irregularly punctate at middle, more coarsely, 

 deeply at sides, feebly, transversely rugose, intervals densely granulose. 



Elytra at base distinctly wider than pronotum at base, nearly twice as 

 long as wide, widest behind middle ; sides rather strongly diverging from 

 humeral angles to behind middle, then arcuately converging to tips, which 

 are conjointly broadly rounded; lateral margins coarsely serrate; basal 

 depressions broad and deep; humeral depressions vaguely indicated; surface 

 glabrous, without longitudinal costae, coarsely, deeply, but not very densely 

 punctate, obscurely rugose basally, intervals densely granulose, each elytron 

 ornamented with violaceous blue as follows : A round spot in basal depression, 

 a large, round, slightly depressed spot in front of middle, and an irregular, 

 transverse fascia at apical third. 



