454 



Mr. G. C. Champion on 



6 (5). Elytra not tuberciilate. 



7 (8). Prothorax metallic, except in front; legs 



partly or wholly black or metallic : species 

 3ialachiiform Species 3, 4. 



8 (7). Prothorax testaceous ; antennfe partly testa- 



ceous, joints 1 and 2 or 1 only with a 



shining black mark above ; head cristate . . Species 5. 



9 (4). Elytra not uniformly metallic. 



10 (11). Elytra immaculate, whitish or testaceous, like 



the rest of the body Species 6, 7. 



11 (10). Elytra maculate. 



12 (13). Prothorax, legs, and antennse testaceous ; 



elytra whitish, with longitudinal or inter- 

 rupted black markings on disc Species 8. 



13 (12). Prothorax and legs black ; elytra metallic, with 



a common median space or transverse 



lateral patch testaceous or orange-red .... Species 9-11. 



14 (1). Anterior tarsal joints 1 and 2 a little stouter 



and longer than those following, 2 raised at 

 the apex above the level of 3 or prolonged 

 over the base of the latter, nigro-pectinaie 

 at tip. [Subgeu. IIedybiinus, n.] 

 15(16). Anterior tarsal joints 1 and 2 imbricate; 

 prothorax and elytra green, the former 

 tt'staceous at the base ; po.sterior tibiae 

 partly black ; abdomen metallic Species 12. 



16 (15). Anterior tarsal joints 1 and 2 not imbricate. 



17 (36). Elytra uniformly metallic (except in No. 22, 



vars.) ; prothorax testaceous, in most of 

 the species nigro-maculate on the disc. 



18 (3-5). Legs (except in No. 29) testaceous, wholly or 



in part. 



19 (34). Terminal dorsal and ventral abdominal seg- 



ments without projecting hooks or spines. 



20 (21). Antennae pectinate or acutely serrate, stout; 



prothorax vei7 little broader than long in 

 No. 13, cristate or horned in front, testa- 

 ceous (maculate in No. 14) Species 13, 14. 



21 (20). Antennse serrate, dentate, or subfiliform; 



prothorax transverse, not cristate, 



22 (23). Anterior femora binodose and sulcate at the 



apex above ; prothorax notched at sides .. Species 15. 



23 (22). Anterior femora simple. 



24 (25). Prothorax dentate laterally ; antennal joints 



7-11, and the others in part beneath, black, 

 in No. 16 ; antennae testaceous, joints 8 and 

 4 each with a shining black area beneath, 

 in No. 17 Species 16, 17. 



25 (24). Prothorax rounded or subangnlate laterally, 



slightly notched in No. 27. 



26 (29). Antennse maculate or lineate above. 



27 (28). Antennal joints 1-11 or 5-11 nigro-maculate 



at the apex above, 3 and 4 each with a 

 black shining area beneath in No. 18 .... Species 18-20. 

 28(27). Antennal joints 1-11, 1-5, or 3-7 nigro- 

 lineate above, 3 and 4 each with a shining 

 black area beneath in No. 21 .' Species 21-23. 



