Drscriptions of three neio species of Ameriean Cetoniidge ; hy 

 Oliver E. Janson. 



Gymnctis anceps, n. sp. Plate IX., fig. 3. 



G. Atra, velutina, capite utrinque, thorace marginibus 

 lateralibiis angiiste, ely tris lateribus apiceque late ochraceis ; 

 elytris bicostatis ; corpore infra nitido. Long. $ 22, ? 23 

 mm., lat. $ 10, $ 12 mm. 



Black velvety and opaque above, shining beneath ; a 

 narrow band at the apex, lateral margins of thorax and 

 some small contiguous confluent spots, and a Ijroad mar- 

 ginal band and apex of elytra pale~ ochreous. 



Head coarsely and remotely punctured, clypeus rounded 

 at the sides, margins elevated, apex slightly semicircularly 

 emarginate. 



Tliorax very remotely punctured, posterior angles 

 rounded, basal lolje short and only partly covering the 

 scutellum. 



Scutellum very acute at the apex. 



Elytra finely punctured, the punctures arranged in 

 tolerably distinct rows on the disc, each with two slightly 

 elevated ridges extending from near the base to the ^ipical 

 callus, suture elevated from the middle to the apex. 



Pygidium rugose. 



Beneath coarsely punctured mesosternal process narrow, 

 obtuse at the apex ; abdomen longitudinally impressed ; 

 legs punctured, tibife unarmed, intermediate and posterior 

 with a fringe of fine short ])lack hairs, tarsi rather long and 

 slender. 



