244 On Some New 



Horn as Mimetes Sch. According to the description given by 

 Lacordaire (Gen. Col. VI., p. 39), I cannot, however, regard it 

 as such. In this description the beak is stated to be as long as, 

 and rather narrower than the head and flat above, while in the 

 present genus, it is very much longer and narrower than the 

 head and is impressed along the middle. The eyes are stated 

 to be small in Mimetes and the elytra not wider than the pro- 

 thorax, which is not the case in either of the species before me. 

 The very minute setas which are present on the elytra are sub- 

 recumbent, and the term " poils redresses " could not be 

 appropriately applied. It is also possible that the species 

 described below as A, gracilior is the same as that identified as 

 Mimetes setulosus by Dr. Horn. 



The two species described below may be distinguished as 

 follows: — 



Ocular vibrisssB extremely short and inconspicuous ; median 

 impressed groove of beak very feeble and only present toward 

 base loni^isternus. 



Ocular vibrissae longer and more conspicuous ; beak strongly and 

 broadly impressed in the middle throughout its length, .g^raeilior. 



In both these species the elytral intervals are broadly and 

 feebly convex, the alternate ones slightly more strongly so, 

 especially toward apex, near which point the ridges of the 

 third and seventh intervals unite and thence continue to the 

 apex as a single ridge. This character will serve to distinguish 

 them from seniculus Horn, in which the elytral intervals are flat. 



A. longisternu§ n. sp.— Form oblong-oval, rather depressed above, 

 densely clothed with dark cinereous scales which are rounded and 

 polygonally crowded, closely adherent and covered with a shining 

 glaze, darker on the head and prothorax. Head moderate ; occiput 

 very strongly convex, finely, very densely punctate, scarcely squamose 

 except toward tip of beak where the scales are of a cupreous lustre ; 

 eyes very prominent. Prothorax slightly wider than long, subcylin- 

 drical ; sides strongly and nearly evenly arcuate ; abruptly and deeply 

 constricted at the sides just behind the apex, the constriction extending 

 almost across the disk ; base and apex subtruncate, the former very 

 slightly the wider ; disk convex, perfectly even, very finely, densely, 

 and feebly granulose. Scutellum small. Elytra oblong, nearly one- 

 half longer than wide, three-fourths wider than the prothorax, abruptly 

 acute behind ; sides nearly straight and parallel in the middle ; humeri 

 broadly rounded ; base broadly emarginate ; disk more strongly convex 

 at the sides, very finely and feebly striate, the striae with very minute, 



