STAPHYLINID^: 151 



antennae not very short, extending to the middle of the elytra, deep 

 black, picescent basally, only very gradually and feebly incrassate, the 

 third joint moderately elongate, nearly as long as the second, fourth 

 scarcely wider than long or wider than the tip of the third, fifth abruptly 

 much wider, transverse, the ninth and tenth mutually similar and about 

 two-thirds wider than long, the last large, longer than the two preceding; 

 prothorax more than one-half wider than long, parallel, the sides evenly 

 and very strongly rounded, the median line finely, feebly impressed 

 basally; elytra at base scarcely visibly wider, the suture about one-half 

 longer, than the prothorax; abdomen much narrower than the elytra, 

 parallel, narrowing very slightly at apex, the fifth tergite short and trans- 

 verse, equal to the fourth but almost impunctate. Length 1.4 mm.; 

 width 0.45 mm. Queen Charlotte Islands (Massett), Keen. 



Distinguishable at first glance from nescia, the only other de- 

 scribed species of the islands, in its darker coloration, larger and 

 transverse head, longer, darker and much less thick antennae, with 

 less transverse joints and much longer eleventh joint, and in its very 

 much broader, more laterally rounded prothorax; there is, in fact 

 no close resemblance whatever between the two species. 



Pseudota cornicula n. sp. Stout, very much depressed, feebly shining, 

 deep black throughout, the legs short, slender, black, slightly paler 

 distally; punctures fine, dense and asperate throughout; on the abdomen 

 they are smaller but asperate, close-set and almost equally so to the tip; 

 pubescence dark but distinct; head slightly wider than long, about three- 

 fourths as wide as the prothorax, the eyes prominent, at barely two-thirds 

 their length from the base, the less prominent tempora parallel and 

 straight near the eyes; antennae rather short, gradually and moderately 

 incrassate, deep black throughout, the second joint as long as the first, 

 third evidently shorter, fourth but little wider than long, fifth slightly 

 wider and a little more transverse, fifth to tenth mutually subsimilar 

 but gradually increasing, the latter moderately transverse, the last 

 rather short and obtuse; prothorax very short and broad, nearly four- 

 fifths wider than long, parallel and strongly rounded at the sides, scarcely 

 at all impressed; elytra large, but slightly shorter than wide, with dis- 

 tinctly diverging and straight sides, at base barely visibly wider, the 

 suture fully three-fourths longer, than the prothorax; abdomen much 

 narrower than the prothorax, perfectly parallel, the sides evenly though 

 barely perceptibly arcuate, the tergites short and transverse, equal, 

 except the fifth which is a third longer than the fourth, the first alone very 

 distinctly, and that narrowly, impressed at base. Length 1.65 mm.; 

 width 0.56 mm. British Columbia (Metlakatla), Keen. 



Sexual characters are not apparent; the sixth tergite in the type 

 is very broad and arcuate at tip. This species is very isolated but 

 apparently belongs in Pseudota; the single type is in such condition 

 that I cannot examine the tarsi. 



