BYRRHID/E 29 



broadly rounded behind in apical third; surface opaque, extremely 

 finely, densely chagrined throughout, the [junctures not distinct; 

 vestiture very short, not very dense, almost perfectly even in distribu- 

 tion, fulvous in color, becoming faintly cinereous on the flanks; 

 abdomen shining, finely, feebly and not very densely asperulato- 

 rugulose. Length 6.8 mm.; width 3.85 mm. New Hampshire 

 (near the summit of Mt. Washington) difficilis n. sp. 



1 8 Very broadly oblong-oval, rather shining throughout above and 

 more so beneath, deep black throughout; head closely, deeply, 

 distinctly and densely punctate, the anterior margin tumid, and, 

 im medially behind the ridge, transversely impressed, the impression 

 broadly interrupted at the middle, the central short transverse line 

 impressed and evident; prothorax not quite half as long as the basal 

 width, of the usual form, the punctures very fine, deep, even through- 

 out and extremely close-set, separated generally by less than their 

 own widths; pubescence denuded in the type, except a few short 

 pale hairs on the flanks; elytra evidently wider than the prothorax, 

 only a fifth or sixth longer than wide, parallel, very broadly, cir- 

 cularly rounded in about apical third; surface finely but very dis- 

 tinctly, evenly and closely punctured throughout, irrespective of 

 the strial intervals, the latter not differing at all among themselves, 

 the stria? fine, consisting of irregular series of fine linear detached 

 portions, becoming more nearly entire and stronger on the flanks; 

 pubescence wholly denuded in the type, except a few very short 

 silvery hairs along the lower part of the flanks; abdomen finely, 

 closely and rather strongly asperate, the metasternum with only 

 moderately large and well separated punctures which are rugosely 

 confluent laterally, the mesosternal sinus shallow. Length 6.9 mm.; 

 width 4.3 mm. British Columbia (Donald), A. G. Smith. 



egenus n. sp. 



19 Form stout, inflated posteriorly, blackish-brown in color, very dull 

 in lustre, the tarsi rufo-piceous, the antennae dusky testaceous, the 

 basal joint black; head finely, very densely punctato-rugose, the 

 median part posteriorly somewhat elevated and deplanate, the 

 vestiture very short, abundant and coarse; prothorax longer and 

 narrower than usual, fully half as long as the basal width, of the usual 

 form, the punctures small but deep and extremely dense through- 

 out; pubescence rather short, coarse, dense, brownish-black, slightly 

 variegated with a few small cinereous hairs, the darker hairs also 

 aggregated into a few irregular lines; scutellum densely, coarsely 

 pubescent, brownish-black; elytra barely a sixth longer than wide, 

 at base scarcely, behind the middle much, wider than the prothorax, 

 very broadly and obtusely rounded behind, the sides anteriorly 

 nearly straight; pubescence very short, dense, coarse and dark 

 fulvous, condensed into more blackish vittrc on the alternate in- 

 tervals and with a transverse blackish spot posteriorly toward the 

 sides, the transversely lunate figure rather short, composed of 

 silvery-white spots, the anterior line anteriorly angulate medially; 

 punctures minute but distinct, everywhere extremely dense; ab- 

 domen finely, closely and rather strongly asperate. Length 7.8 mm. ; 



