248 GEO. H. HORN, M. D. 



The species are as follows : 



Surface very shining, as if varnished, the elytral costse entirely obliterated, 



thorax with very large impunctured spaces 33. politula. 



Surface of usual aspect, costse more or less distinct. 

 Submarginal costa of elytra well marked, reaching very nearly the humeral 

 umbone. 



Thorax equally punctate, but not conspicuously coarse 34. barda. 



Thorax with scattered coarse punctures, with smooth spaces of variable 



size 35. marginalia. 



Submarginal costa very feeble, visible only at apical third. 



Antenual club % longer than the entire stem ; last ventral not cupuli- 



form 36. spreta. 



Antennal club % very little longer than the funiculus ; last ventral with 

 cupuliform fovea 37. frateriia. 



Two of the species, marginalis and fmtenia, are variable in thoracic 

 sculpture, and reference must be made to the details under the de- 

 scriptions. 



33. Li. politula n. sp. — Oblong, nearly parallel, rufocastaneous, surface very 

 smooth and shining. Olypeus moderately deeply emarginate, the border nar- 

 rowly reflexed, coarsely, cribrately punctured, front very coarsely punctured, 

 but not cribrate. Thorax narrowed in front, sides arcuate, margin crenate, with 

 short cilige, surface very shining, with coarse urabilicate punctures sparsely 

 placed near the side, others smaller irregularly scattered each side of the median 

 line and along the apex, having a large smooth space each side. Elytra! punc- 

 tures much finer than those of the thorax, moderately closely placed, except 

 near the apex, surface as if varnished, the costa entirely obliterated, the sutural 

 stria nearly entirely effaced, the suture scarcely more convex. Pygidium pol- 

 ished, a few scattered punctures near the side. Metasternum rather coarsely and 

 closely punctured, the hair rather short and sparse 9 ■ Abdomen moderately 

 closely punctured at the sides, the last two segments more coarsely. Claws 

 curved, with a strong median tooth f . Last joint of maxillary palpi cylindrical, 

 truncate, not impressed. Length .71 inch ; 18 mm. 



The female has the antennal club a little shorter than the funicu- 

 lus. Penultimate ventral segment transversely impressed close to 

 the posterior border. Pygidium broader than long, feebly convex. 

 Of this species I have seen but one female remarkable in the polished 

 surface and the entire obliteration of the elytral costie. It cannot 

 be mistaken for nitida, as the latter has 9-jointed antennae and the 

 pygidium gibbous near the apex. The thoracic sculpture is quite 

 different in the two species. 



One specimen, locality unknown, given me by the late Chas. Wilt. 



34. li. barda n. sp. — Oblong-oval, rather robust, above slightly depressed, 

 piceous, shining. Clypeus distinctly emarginate, the border very slightly re- 

 flexed, densely punctured, the front more coarsely but less densely punctured. 

 Thorax moderately convex, sides posteriorly straight, but slightly convergent to 



