.TAXYMECIDES. 59 



Key to the Genera. 



1 (2) Tarsi with only a single claw. Atmetonychus, Schh., p. 112. 



2 (1) Tar.si with two claws. 

 S (14) Tarsal claws free. 



4 (5) Basal margui of tlio prothorax 



broader than that of the 



elytra Hadkonotus, Fst., p. 62. 



5 (4) Basal margin of the prothorax 



not broader than that of 

 the elytra. 



6 (7) Mesosternal process between 



the median coxne almost as 

 broad as the coxie ; intercoxal 

 process of venter truncate 

 and broader than the hind 

 coxfe ; third joint of hind 

 tarsi not broader than second Anemeuoides, g. n., p. 110. 



7 (0) Mesosternal process much 



narrower than the coxai ; 

 intercoxal process of venter 

 rounded or subangulate and 

 narrower than the hind coxa3 ; 

 third joint of hind tarsi 

 broader than second. 



8 (11) Corbels of hind tibias narrowly 



ascending the dorsal edge of 

 the tibia for some distance, 

 and fringed outwardly with 

 a row of erect setaj. 



9 (10) Corbels of hind tibi;e bare. . . . Tanymecus, Schli., p. 68. 



10 (9) Corbels of hind tibiae clothed 



with scaling rHACEi'HORTis, Schh., p. 107. 



11 (8) Corbels of hind tibia; terminal 



and not ascending the dorsal 

 edge. 



12 (13) Base of rostrum not broader 



than the forehead ; scape 

 reaching only the middle of 

 the eye ; elytra without a 

 humeral callus, the shoulders 

 rounded Scepticus, Eoel., p. 63. 



13 (12j Bas8 of rostrum broader than 



the forehead; scape reaching 

 tbe posterior margin ot the 

 eye ; elytra with a distinct 

 humeral callus, the shoulders 

 oblique Acroccelopus, g. n., p. Qi^k 



14 (3) Tarsal claws fused together at 



the base. 



15 (24) Corbels of hind tibi?e at least 



partly clothed with scales. 



16 (17) Tarsi sublinear, the hind pair 



with joint 3 not or but little 

 broader than 2; the forehead 



