144 AMERICAN COLEOPTERA. 



just before the obliquely narrowed apex, each with an impression just 

 before the apex, the sutural angle minutely acuminate, inferior plate 

 moderately projecting, rounded at tip, each bearing a slender acutely 

 spiniform process arising from the base near the sutural edge, their 

 tips in contact and attaining the level of the elytra. Hind tibiae very 

 slender throughout. Length 4.5 mm. 



Claremont, California. A single male sent me by Prof. 



C. F. Baker, in whose honor it is named. The form of the 

 elytral appendix is scarcely different from that in mirandus. 

 The latter differs in color, in having the antennal branches 

 longer, the intermediate ones nearly twice the length of the 

 joints, and frequently dilated outwardly ; the hind tibiae very 

 distinctly stouter in the male. 



MELYRID^E. 

 DASYKHADUS new genus. 



The two Californian species for which the above generic 

 title is proposed are by their setose eyes and triangular ter- 

 minal joint of the maxillary palpi related to Rhadalus. The 

 small size and shorter vestiture is, however, much more 

 suggestive of Dasytes and allies. The form is elongate, 

 subdepressed, somewhat cuneiform, the prothorax very short 

 and strongly impressed around the margins, vestiture short 

 and uniform, eyes setose, last joint of maxillary palpi sub- 

 triangular, the outer edge broadly arcuate and a little longer 

 than the apical edge, the latter straight, strongly oblique 

 and twice as long as the inner side. Antennas rather slender, 

 nearly as in Dasytes. Epipleurae slightly oblique, becoming 

 inflexed and disappearing before the apex. Legs slender, 

 tibias not spinulose and with terminal spurs ; basal joint of 

 tarsi not conspicuously hairy beneath, basal joint longer than 

 the second ; appendages of claws as long as the claws but 

 separate from them apically for a variable distance. 



D. impressicollis n. sp. 



Elongate, subdepressed, a little wider posteriorly, piceous-brown, 

 elytra usually a little paler, moderately shining ; pubescence uniform, 

 rather sparse, short and inclined. Antennas but little longer than the 

 head and prothorax ( 9 ) , a little more elongate (<?) , scarcely thickened 

 externally, clothed with short erect hairs in the 9 , and with longer 



