1«18 I K. II. Cravkly; l'a.ss<iUdae of (/„■ II WW. 39 



Tlio aljovriiuiitiuiifd .species of Velurins may be recognized thu.s : — 

 1' The inesostermim hairless and iiiipuncturcil except, as a rule. 

 1 ill the anterior anj;le . . . . . . . . _ o 



1 The niesosternuni witli hnir-ln'iiiin^ ])iinctures beliiiul or at th'' 



( side , as well as in front . . . . . . 5 



(The anterior margin of the iirunotiini iiractically straight, only 

 the anterior marfiinal <;roove sinuous ; this groove almost 

 complete across the middle line, where the pronotum issome- 



iwhat strongly convex immediately behind it . . . . V. sinunltixiiknhis, p. 3-5. 



Tiie pronotum normal, its anterior margin sinuous with widely 

 broken marginal groove . . . . . . . . . . . . 3_ 



i' The frontal ridges and inner tubercles present ; the two lowest 



I terminal teeth of both mandibles fused at base only . . . . . . 4. 



' ] The fronta' ridges and inner tubercles absent ; the two lowest 

 ' terminal teeth of both mandibles completely fused . . T'. nnicornis. p. 36. 



( The middle tibiae with spines above their ends .. .. V. spinifer. p. 36. 



I The middle tibiae without spines above their ends .. .. V. plnlf/rhiiius. j>. 36. 



The two lowest terminal teeth of both mandibles completelv 

 fused (spines present above the ends of the middle tibiae ; the 

 elytra hairless at the shoulders) .. .. .. F. sfw/Z/fwiM. p. 36. 



The two lowest terminal teeth fused at base only, in unworn 

 specimens, on the right and usually also on the left mandible . . . . 6. 



The two lowest teiminal teeth of the left mandible completely 

 fused (no spines above the ends of the middle tibiae ; the 

 elytra hairless at the shoulders) . . . . . . T. cephahlus. p. 37. 



The two lowest terminal teeth distinct at ape.x in unworn speci- 

 mens on both mandibles. .. .. .. .. .. 7. 



r The elytra with a tuft of hair on each shoulder . . . . . . . . g. 



7-; The elytra without any such tufts, (the middle tibiae without 

 V spines above the end) .. .. .. .. ., 9. 



(The central tubercle normally situated, at least as far from the 

 inner tubercles as these are from one another : the elvtra 

 normal ; the middle tibiae without spines above the end . . T'. shtunlus. p. 37. 

 The central tubercle set unusually far forwards, being nearer to 

 I the inner tubercles than they are to each other; the eh-tra 

 less glossy tha the head and thorax ; the middle tibiae with 

 spines above the end . . . . . . ]'. rriniccpn. p. 37. 



f The central tubercle situated at least as far from the inner 

 tubercles as these are from one another : the obsolete frontal 

 ) ridges meeting in an acute angle .. .. .. V. ns.^hiiili.'^. n. 38. 



IThe central tubercle situated nearer to the inner tubercles than 

 these are to each other : t]\o fiontnl ritli;es meeting in an 

 obtu.se angle . . . . , _ j 0, 



/ The central tubercle normal not free at ajiex ; the frontal 



ridges moderately distinct . . . . . . 1'. Imlindc. p. 3S. 



The central tubercle .slender, with free apex : the frontal ridges 

 "I'solete .. .. .. .. .. y.heydaii,]\3S. 



lO^ 



