STAPHYLINID.E i8i 



wider than long and barely at all wider than the prothorax, circularly 

 rounded behind the eyes though forming less than a semicircle; antennae 

 moderately long, black, picescent basally, gradually and distinctly 

 incrassate, the second joint evidently shorter and thicker than the third, 

 fourth barely at all longer than wide, the fifth somewhat, the tenth about 

 a third, wider than long, the last distinctly shorter than the two pre- 

 ceding; prothorax somewhat longer than wide, widest at apical fourth 

 or fifth, where the sides are narrowly rounded, thence almost transversely 

 converging to the narrow apex and feebly converging and straight to the 

 base, the impressions as in copiosa, except that the two basal longitudinal 

 furrows are longer; elytra wider than long, four-fifths wider and barely 

 one-half longer than the prothorax, each with the usual two basal im- 

 pressions; abdomen much narrower than the elytra, feebly swollen 

 apically. Length 2.0-2.3 mm.; width 0.64-0.68 mm. Queen Charlotte 

 Islands (Massett), Keen. 



Wholly different from the Californian elegans-copiosa type in 

 many ways, chiefly relating to the much more anterior maximum 

 width of the prothorax, sculpture and antennal structure. 



Autalia brevicornis n. sp. Moderately slender and convex, deep 

 polished black throughout, the legs pale, the femora a little darker; 

 punctures fine, sparse, scarcely asperate, becoming elongate granules on 

 the pronotum except apically and rather close and asperate throughout 

 the abdomen, the three deep impressions of the latter nearly as in the 

 preceding, except that the lateral carinae are fine and not broad and 

 flat; pubescence moderately long, not conspicuous; head narrower, 

 nearly as long as wide, fully semicircular behind the eyes, the antennae 

 unusually short, barely longer than the head and prothorax, piceous- 

 black, rather thick, gradually incrassate, the second joint as long as the 

 first, much longer but barely thicker than the third, fourth barely as long 

 as wide, the fifth slightly, the tenth fully two-thirds, wider than long, the 

 last slightly shorter than the two preceding, pyriform; prothorax through- 

 out nearly as in truncatula but rather narrower and fully as long as wide, 

 very slightly narrower than the head; elytra slightly transverse, swollen 

 and rounded at the sides, the latter becoming straight and parallel at 

 base, twice as wide as the prothorax and not quite one-half longer, the 

 two basal furrows on each distinct; abdomen formed nearly as in the 

 preceding, the fifth tergite much shorter than the fourth as usual. 

 Length 1.75-2.2 mm.; width 0.4-0.5 mm. British Columbia (Met- 

 lakatla), Keen. 



Belongs to the same group as truncatula and having, as in that 

 species, the median abdominal carinae long and extending almost 

 to the segmental apices on the first two tergites, but short and not 

 quite crossing the impression on the third tergite. This species 

 differs from truncatula in its very short antennae, with a much longer 

 second joint and in having the entire abdomen much more closely 



