58 MEMOIRS ON THE COLEOPTERA 



Length 1.5-1.85 mm.; width 0.9-1.2 mm. Rhode Island, Massa- 

 chusetts (Marion) and New York (Bluff Point, Lake Champlain). 



pallidus Csy. 



Form more elongate-oval, convex, evenly oval, highly polished and black 

 in color, generally with a slight piceous tinge, the apical pale areas 

 rather abruptly denned as a rule; under surface and legs testaceous; 

 head half as wide as the prothorax; antennae slender, of the usual 

 structure; prothorax much less abbreviated than in the preceding, 

 only a little more than twice as wide as long, not definitely beaded 

 at base; sides strongly converging and strongly, evenly arcuate; 

 scutellum triangular, paralleled by the posterior deflection of the 

 basal stria of the elytra, which are together distinctly longer than 

 wide, very obtusely parabolic in outline, the surface smooth, though 

 sometimes with feebly impressed lines and a few very fine and re- 

 motely separated punctures, disposed in series internally and apic- 

 ally; prosternal process with about six long setae, the outer margin of 

 the post-mesocoxal plaques soon becoming obsolete posteriorly. 

 Male extremely rare and having merely a very feeble sinus at the 

 apex of the fifth ventral segment as in pallidus. Length (i cf , 44 9 ) 

 1.6-2.35 mm.; width 0.9-1.25 mm. New York, West Virginia, 

 Indiana, Illinois (Highland Park), Iowa, Kansas, Colorado (Boulder 

 Co.) and California (Pomona). Very abundant and said by Sharp 

 to extend its range well through northern Mexico. [Phalacrus 

 apicalis Mels.] apicalis Mels. 



7 Form less broadly, evenly oval, the elytra distinctly longer than wide; 

 surface convex, very shining, piceous-brown in color, the elytra 

 gradually feebly pallescent posteriorly, the under surface and legs 

 pale testaceous; head about half as wide as the prothorax; antennae 

 slender, the first joint large, the second small and cylindric, the basal 

 joint of the club longer than wide and much longer than the second; 

 prothorax evidently more than twice as wide as long; converging sides 

 evenly and rather strongly arcuate, the base transverse, not lobed 

 medially; scutellum equilatero-triangular; elytra very obtusely 

 parabolic, the sides subparallel basally, the stria coarse, deeply im- 

 pressed, the basal stria paralleling the scutellum; surface very smooth 

 throughout, with some minute and feeble punctures, remotely placed 

 in series; prosternal process with about three long setae at tip. Length 

 1.65-1.75 mm.; width i.o-i.i mm. California (Siskiyou Co.). 

 Two female examples shastanicus n. sp. 



Form very broadly and evenly elliptical, convex, polished, brownish- 

 testaceous in color, the elytra nubilously somewhat paler at apex 

 and not longer than wide; under surface more ochraceous; head less 

 than half as wide as the prothorax, excessively minutely, remotely 

 punctulate; antennae slender, the basal joint of the club longer than 

 the second; prothorax much more than twice as wide as long, the 

 sides strongly arcuate and very convergent; base extremely faintly 

 lobed medially; scutellum and elytral base as in the preceding, the 

 stria rather less coarsely impressed; surface smooth, becoming very 

 faintly subreticulate apically and having widely spaced series of 

 extremely minute punctules, which as usual in this genus, appear to 



