LeConte.] CIONINI. 221 



MIABUS Sch. 



1. M. hispidulus, n. sp. 



Ovate, convex, black, with a feeble bronzed tinge, clothed with grayish 

 erect hairs. Beak long and slender, extending beyond the middle coxae, 

 smooth, feebly punctured at base. Prothorax wider than long, narrowed 

 from the base forwards, obliquely but slightly rounded on the sides, densely 

 and finely punctured. Elytra a little wider than the prothorax, shining, 

 striae deep, slightly punctured, interspaces nearly flat, rugose and punctu- 

 late. Thighs not toothed; tibiae slender, straight, not armed with a hook. 

 Length 2 mm. ; .08 inch. 



Texas, Illinois, Florida and Pennsylvania. 



In well preserved specimens the sides of the prothorax beneath, and the 

 trunk are clothed with dirty white scales. This species is allied to the Euro- 

 pean M. distinctus, but differsby the unarmed thighs. 



Tribe XIII. I>ERKI,OMIM. 



A tribe which contains a few small species of oblong elongate form, 

 glabrous, and feebly punctured, with the hind angles of the prothorax rect- 

 angular and better defined than usual. The beak is slender, long, cylin- 

 drical, and is usually projected forwards; it can, at most, be bent perpendicu- 

 larly downwards in repose; the antennal grooves descend obliquely to the 

 lower edge of the eyes, which are moderate in size, nearly round, coarsely 

 granulated and distant from the prothorax. The antennae, inserted one-fourth 

 from the tip, are slender, the scape reaches the eyes; the funicle is 7- 

 jointecl ; first joint stouter, and as long as the two following united; the second 

 and the succeeding ones become slightly broader, rather closely connected 

 and merge into the club, which is pubescent, elongate, pointed, and strongly 

 annulated. The prothorax is quadrate for the greater part, then suddenly nar- 

 rowed to the tip, which is constricted ; near the tip there is a short, acute 

 oblique lateral ridge representing a part of what is the lateral margin of the 

 pronotum in other Coleoptera. The prosternum is very long in front of the 

 coxae, which are nearly contiguous in our species, though distinctly sepa- 

 rated in the foreign genera; it is not emarginate in front, and the prosternal 

 sutures are obliterated. The elytra are scarcely wider than the prothorax, 

 parallel on the sides, conjointly rounded behind, so as to cover the pygid- 

 ium ; the surface is punctulate, and the striae are obsolete. The middle 

 coxae are moderately separated; the side pieces are diagonally divided, anfl. 

 the epimera attain widely the base of the prothorax beneath, though they 

 do not intervene between the elytra and the pronotum. Metasternum mod- 

 erately long, side pieces narrow, wider in front. First, second, and fifth 

 ventral segments long; third and fourth united about equal to each of them; 

 surface rather flat, sutures fine and well impressed, nearly straight; second 

 suture slightly curved at the sides; in the tf, the anal segment is slightly 

 visible at the tip of the fifth ventral. Legs rather stout, thighs compressed 

 not toothed; tibise truncate at tip, not mucronate; tarsi spongy beneath; 



