338 MEMOIRS ON THE COLEOPTERA 



Form narrow, more subcylindric, the vestiture and sculpture almost as 

 in the preceding, except that the cinereous vestiture of the upper 

 surface is in greater abundance, whiter and more conspicuous; 

 head moderate, the eyes more widely separated, the antennal prom- 

 inences less strong and with the surface between them much natter, 

 the antennal scape more swollen apically than in obliquus; lower 

 lobe of the eyes longer; antennae two and three-fourths times as 

 long as the body, similar, except that the outer joints are less 

 cinereous, the terminal process much shorter, only four or five 

 times as long as wide; prothorax shorter, more than one-half wider 

 than long, the spinules distinct, at basal third, the surface similar, 

 except that the punctures are rather coarser and more numerous; 

 elytra nearly similar, except that the punctures are smaller and 

 sparser, everywhere well separated; supplementary dorsal (cf) 

 narrower, its apex almost entirely occupied by an evenly rounded 

 and moderately deep sinus, the lobes very narrowly rounded at 

 their apices; fifth ventral with the cinereous vestiture uniform, the 

 apical fringed sinus as usual. Length (d 71 ) 9-5 mm.; width 2.8 mm. 

 California (Siskiyou Co.) pacificus n. sp. 



8 Body (9) rather broadly oblong, parallel, black, the under surface 

 obscure rufous, the abdomen black; head moderate, the antennae 

 much longer than the body; prothorax rather small, three-fourths 

 wider than long, the spicules distinct, at basal third, the sides feebly 

 and evenly oblique thence to the apex but sinuate before the prom- 

 inences; surface with very sparse moderate punctures and four 

 longitudinal cinereous vittae, the two inner arcuately diverging 

 from the subapical tumors; elytra much wider than the prothorax, 

 with very broadly exposed and basally transverse humeri, the sides 

 rounding behind to very near the suture, each narrowly rounded at 

 apex; surface obliquely impressed behind the humeri, subdiscon- 

 nectedly lineate with deep black on the feebly raised lines, the flanks 

 basally, an adjoining discal spot at one-third and an elongate and 

 more sutural spot before the middle, a narrow irregular black 

 fascia behind the middle and prolonged along the first and second 

 raised lines to near the apex and there inclosing a cinereous spot, 

 deep and solid velvety-black: punctures between the raised lines 

 moderate in size but deep and close-set, last dorsal ( 9 ) flat, gradu- 

 ally attenuated to near the apex, thence rather narrowly produced 

 to the moderately acute and densely silvery-fimbriate apex, the 

 fifth ventral much produced, deeply and angularly incised at apex. 

 Length ( 9 ) 12.2 mm.; width 3.7 mm. New Mexico, .angulosus n. sp. 



9 Dark areas of the pronotum and elytra solid and abruptly defined. 

 Body dark brown in color, the paler vestiture only moderately dense 

 and pale brownish; antennae (cf ) three and one-half times as long 

 as the body, pale cinereous throughout, the dense erect cinereous 

 fringe as long as one-half the thickness of the joints, the outer joints 

 rapidly very long; prothorax one-half wider than long, the lateral 

 prominences large, very acute, with the apices feebly flexed back- 

 ward, less basal than in any of the preceding species, being near 

 basal two-fifths; surface with rather small sparse punctures, brown, 



