LeConte.] 



TYCHIINI. 217 



2. T. ligfifillus^n. sp. 



Black, densely clothed with coarse cinereous hair; which is brownish 

 upon the alternate elytral interspaces. Beak slender, not thicker at base, 

 pubescent, and feebly striate, tip naked; eyes small, rounded, distant, mod- 

 erately convex. Prothorax a little longer than wide, narrowed in front of 

 the middle, rounded on the sides, constricted near the tip; median line cin- 

 ereous, two indistinct stripes brownish. Elytra wider than prothorax, ob- 

 long-oval, humeri rounded, convex; striae well impressed, interspaces flat, 

 alternately clothed with pale brown hair; suture and scutellum cinereous. 

 Thighs stout, clavate, sinuate beneath near the tip, but not toothed. 

 Length 3.3-4 mm. ; .13- .16 inch. 



California, three specimens, of which two were collected by Mr. Crotch, 

 at Santa Barbara and Los Angeles. 



3. T. sordidus, n. sp. 



Black, densely clothed with coarse, pale brown hair, broader and scale- 

 like beneath; beak pubescent except at tip, feebly striate, front channeled. 

 Prothorax gradually narrowed from the base, sides oblique, broadly rounded, 

 feebly constricted at tip. Elytra oblong-oval, wider than prothorax, humeri 

 rounded, striae well impressed, interspaces flat; in certain directions some 

 of the hairs have a metallic lustre. Thighs stout, clafvate, sinuate beneath 

 near the tip; hind pair obtusely but not distinctly toothed. Length 4 mm. ; 

 .16 inch. 



One specimen, Illinois. Differs from the preceding chiefly by the uniform 

 pubescence, and the less rounded sides of the prothorax. 



4. T. tectus, n. sp. ? T. aratus Say, Cure. 26; ed. Lee. i, 294. 

 Blackish-brown, very densely covered with small, oval, closely applied 



brownish white scales. Beak slender, not thicker at the base, as long as the 

 head and prothorax, slightly curved; pubescent except at tip, finely chan- 

 neled for half its length; front with a fine transverse impressed line be- 

 tween the eyes. Prothorax wider than long, narrowed in front of the 

 middle, much rounded on the sides, feebly constricted near the tip. Elytra 

 a little wider than the prothorax, oblong, humeri rounded, striae well im- 

 pressed, interspaces flat. Thighs clavate, sinuate beneath, but not toothed. 

 Length 3 mm. ; .12 inch. 



One specimen, Kansas. The suture and sides of the elytra and dorsal 

 line and two vittae of the prothorax are paler, but not conspicuously so; the 

 scales of the under surface are broader than those of the upper surface. The 

 teeth of the claws are more approximate than in the foregoing species. The 

 scales of the prothorax converge backwards, as described by Say, but the 

 beak is not transversely indented over the insertion of the antennae, and 

 the size is smaller. 



5. T. semlsquamosus n. sp. 



Elongate, dark brown, clothed with coarse, yellowish pubescence, and 

 large oval cinereous scales, which are dense on the under surface, on three 

 narrow prothoracic lines extending from the middle to the base, and on the 



PROC. AMER. PHILOS. SOC. XV. 96. 2B 



