242 MISC. PUBLICATION 4 7 0, U. S. DE-PT. OF AGRICULTURE 



spicuous hairs, intervals finely, densely granulose ; clypeus broadly truncate in 

 front. Antenna bronzy green basally, becoming blackish cupreous toward apex, 

 slightly narrowed to apex ; intermediate segments rather compact, slightly wider 

 than long, broadly rounded at outer margins ; third segment subequal in length 

 to following two segments united. 



Pronotum nearly twice as wide as long, narrower at apex than at base, widest 

 at middle ; sides strongly, uniformly rounded ; anterior margin slightly sinuate, 

 with a vague median lobe ; base transversely subtruncate on each side, median 

 lobe strongly produced, and broadly rounded ; disk moderately convex, without 

 depressions or callosities ; surface glabrous, sparsely, shallowly, irregularly punc- 

 tate at middle, more densely punctate toward sides, intervals finely, densely 

 granulose. 



^4 



Figure 105. — Clypeus (A), and last visible abdominal sternite of male (B) and 

 of female (C) of Chrysobothris platti. 



Elytra slightly wider than pronotum, about one and two-third times as long as 

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

 converging to tips, which are separately broadly rounded, but not extending to tip 

 of abdomen ; lateral margins slightly serrate ; basal depressions very deep ; hu- 

 meral depressions broad and barely indicated ; surface glabrous, obsoletely, longi- 

 tudinally costate, rather densely, finely, irregularly punctate, intervals distinctly, 

 densely, finely granulose. 



Abdomen beneath very sparsely, finely, irregularly punctate, clothed with a few 

 short, semierect, inconspicuous hairs, without lateral callosities, intervals obso- 

 letely granulose ; last visible sternite broadly, obtusely rounded and slightly sinu- 

 ate at apex, with a slightly elevated, sinuate, subapical ridge, lateral margins not 

 serrate or interrupted : eighth tergite densely, coarsely punctate, densely granu- 

 lose, broadly rounded at apex. Prosternum coarsely, confluentlj" punctate, clothed 

 with a few short, inconspicuous hairs, narrowly, transversely depressed ante- 

 riorly ; anterior margin defiexed, slightly rounded, but without a median lobe. 

 Anterior femur with a short, obtuse tooth, which is coarsely dentate on outer 

 margin. Anterior and middle tibiae arcuate, unarmed ; posterior tibia straight. 



Length 12 mm., width 4 mm. 



Redescribed from the female holotype in the collection of Mont A. 

 Cazier, and the male allotype in the collection of A. F. McClay. 



Male. — Differing from the female in having the last visible sternite broadly, 

 shallowly emarginate at the apex. Genitalia not examined. 

 Length 10 mm., width 4 mm. 



Type locality. — Snow Creek, Riverside County, Calif. 

 Distribution. — The only two specimens examined were the female 

 holotype collected at the type locality, June 8, 1936, by F. R. Piatt, 



