ixaxi, ..i^x^.^xjiv. ...,„L JORING BEETLES. 779 



hb. Mesosternal suture distinct; pores of antennae in small pits on tlie 

 under side of the joints ; size medium, rarely over 17 mm. 

 c. Prosternal spine obtusely rounded at apex. 

 d. Mentum entirely horn-like; elytra without yellow markings. 

 e. Scutellum small, rounded; tarsi broad, shorter than the tibia;. 



II. DiCERCA. 



ee. Scutellum much broader than long, truncate behind. 



III. PCECILONOTA. 



dd. Mentum membranous in front; elytra usually marked with yel- 

 low. IV. BUPEESTIS. 



CO. Prosternal spine acute at apex ; form very slender. V. Cinyka. 

 ((«. Prosternal spine acutely angulated behind the coxa\ acute at tip ; epi- 

 mera of metathorax partly covered by abdomen. 

 f. Clypeus not contracted by the insertion of the antennae; size small, 

 usually flattened. 

 ff. Mentum leather-like in front; base of thorax sinuate. 



VI. Melanophila. 

 ffff. Mentum entirely horn-like. 

 ^ h. Base of thorax truncate ; antenu;e serrate in both sexes. 



^ VII. Anthaxia. 



lih. Base of thorax sinuate ; anteimaj pectinate in male, serrate In 

 female. Xenoehipis. 



ff- Cl.vpeus central ted liy the antenna; being inserted at the inner ex- 

 tremity of short oblique grooves ; size medium ; form rather broad 

 and flat. 

 /. Third joint of tarsi truncate; hind tarsi with first joint elon.t;ate; 

 scutellum lart;e, acuminate. VIII. Ciirysobothkis. 



a. Third joint of tarsi much prolonged at side ; hind tarsi with first 

 and second joints equal ; scutellum small. IX. Actenodes. 



I. CiiAi.coPiiORA Sol. 1S33. (Gr., '"fopper-! Ijoaring.") 



Here belong the largest of our Buprestids, having the antenna' 

 inserted in small fovea-; mcutnm broadly emarginate in front; hind 

 tarsi with first joint elongated. The males have a distinct sixth 

 ventral segment. 



KEY TO INDIANA SPECIES OF CIIALCOPIIOKA. 



a. Margins of elytra entire or very finely serrate; median dorsal impres- 

 sion of thorax broad, more or less irregular. 

 6. Sutural stria of elytra on apical half only; color dull black, feebly 

 bronzed. 1480. vibginiensis. 



hh. Sutural stria of elytra entire; coppery or brassy yellow. 



IISI. LIBEP.TA. 



(1(1. Margins of elytra strongly serrate on apical third; median impression 

 of thorax deep, narrow. 1482. campesteis. 



