STAPHYLINID^:. 5 



incrassate, the tenth joint three-fourths wider than long; prothorax fully 

 one-half wider than long, convex, strongly rounded at base, the sides 

 converging and arcuate from the broadly rounded and almost obliterated 

 basal angles to the apex, the surface perfectly even in sculpture and 

 convexity; elytra transverse, parallel, slightly wider and distinctly longer 

 than the prothorax, the apices straight and anteriorly oblique outwardly; 

 abdomen not quite as wide as the elytra, parallel, slightly narrowing 

 apically, the sparse punctures becoming fine and very inconspicuous 

 posteriorly, the sixth tergite (c?) truncate, with a series of fine graniform 

 setose punctures along the edge but more correctly on the surface, the 

 angles rounded; sixth ventral angulate, the angle rounded and the sides 

 of the angle gently sinuate. Length 2.2-3.5 mm.; width 0.8-1.1 mm. 

 British Columbia (Metlakatla), Keen. 



Differs from insulana in its larger head, much stouter antennae 

 and brighter red elytra. As in all the species of this genus the 

 variation in size individually is very great. 



Baryodma concurrens n. sp. Almost similar, but with larger pro- 

 thorax and smaller head, rather stout, convex, shining, black, the legs 

 dark brownish distally, the elytra blackish-rufous; punctures sparse, 

 moderately small, coarser on the elytra but not so close or asperate as in 

 rubricalis, the vestiture rather long and palish but not dense; head slightly 

 more than half as wide as the prothorax, the eyes moderate, not promi- 

 nent, the antennae longer than in the preceding, the fifth and sixth joints 

 only a little wider than long, obtrapezoidal; prothorax scarcely one-half 

 wider than long, even in convexity and sculpture, rounded at base, the 

 sides feebly converging and broadly arcuate, the basal angles very obtuse 

 and broadly rounded; elytra at base as wide as the prothorax, at apex 

 wider than any part of the latter, the sides evidently diverging; apices 

 as in the preceding, the suture relatively shorter, only very slightly 

 longer than the pronotum; abdomen parallel, nearly as wide as the elytra, 

 the punctures strong and rather numerous basally, especially in the basal 

 impressions, fine and sparse behind about the middle, the sixth tergite 

 sinuato-truncate, with rounded angles and fine granuliform punctures in 

 the type, the sixth ventral very broadly and evenly rounded, length 

 2.8-3.1 mm.; width 0.9 mm. British Columbia (Metlakatla), Keen. 



Distinguishable readily from the preceding by the relatively 

 larger and less transverse prothorax, smaller head, longer and less 

 stout antennas, less parallel elytra and stronger punctures in the 

 basal abdominal impressions, the latter being almost punctureless 

 in rubricalis. 



Baryodma eludens n. sp. General form and facies nearly as in con- 

 currens but rather less stout, shining, convex, almost similarly punctured 

 throughout, black or slightly piceous, the elytra paler, rufo-piceous, the 

 legs dark brown throughout; pubescence sparse but long, not very pale, 

 bristling; head moderate, about three-fifths as wide as the prothorax, the 



