A EEVISION OF NORTH AMERICAN CHRYSOBOTHRINI 



99 



(35) Chrysobothris iris Van Dyke 

 (Fig. 35 ; fig. 115, F) 

 Chrysolothris iris Van Dyke, 1937, Brooklyn Ent. Soc. Bui. 32 : 110-111. 



Figure 35. — Anterior tibia of male (A), clypeus (B), and last visible abdominal 

 sternite of male (<7) and of female (D) of Chrysobothris iris. 



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

 pronotum reddish cupreous; elytra aeneous, with a greenish reflection on basal 

 halves, and reddish cupreous, often with a purplish tinge on apical halves ; beneath 

 purplish. 



Head bronzy green, becoming reddish cupreous on occiput, with two small, 

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

 front slightly convex ; surface coarsely, deeply foveolate-punctate, sparsely clothed 

 with moderately long, recumbent, white hairs, the intervals densely granulose ; 

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

 on each side. Antenna piceous, slightly bronzy basally, gradually narrowed to 

 apex; intermediate segments not very compact, distinctly wider than long, 

 broadly rounded at outer margins ; third segment nearly as long as following two 

 segments united. 



Pronotum nearly twice as wide as long, slightly wider at apex than at base, 

 widest at apical third; sides arcuately rounded anteriorly, obliquely converging 

 from apical third to posterior angles; anterior margin slightly sinuate, with a 

 broadly rounded median lobe; base deeply, angularly emarginate on each side, 

 median lobe strongly produced and broadly sounded ; disk rather strongly convex, 

 with a vague, longitudinal, median depression, and a shallow depression on each 

 side near lateral margin ; surface coarsely, deeply, sparsely, irregularly punctate 

 at middle, more coarsely, confluently ocellate-punctate at sides, intervals finely, 

 densely granulose. 



Elytra slightly wider than pronotum, nearly twice as long as wide, widest 

 behind middle; sides slightly diverging from humeral angles to behind middle, 

 than arcuately converging to tips, which are separately broadly rounded ; lateral 

 margins strongly serrate ; base of each elytron not abruptly angulated at middle, 

 oblique externally ; basal depressions broad and very deep ; humeral depressions 

 broad and shallow ; surface glabrous, uneven, coarsely, densely, deeply, irregularly 

 punctate between sparsely punctured, elevated areas, intervals obsoletely granu- 

 lose. Each elytron with first costa strongly elevated on apical half, with numerous 

 large, transverse, irregular, sparsely punctured, elevated spaces, and with large, 

 transverse, irregular, densely punctured areas. 



