STAPHYLINIDyE. 19 



much longer than the two preceding in asperata; the punctures 

 throughout are finer and closer than in that species, except on the 

 abdomen, and the pubescence is a little longer. Five specimens 

 before me from Siskiyou County, may be considered specifically 

 identical with alticola, although they differ in a few minor points. 



Phloeopora Erichs. 



Phloeopora sublcevis Csy., is perfectly congeneric with the Euro- 

 pean corticalis Grav., in general facies, smaller prothorax and shining 

 surface, but the middle coxae are much less widely separated and 

 the mesosternal process aciculate and not rather broad and trun- 

 cate, though similarly attaining the apex of the long angulate 

 metasternal projection. In ferruginea, oregona and the three de- 

 scribed below, which form a distinctly defined group or subgenus, 

 the coxae and sterna are as in sublcevis, but the habitus of the body 

 is quite different, the surface generally being duller and more densely 

 sculptured and the prothorax much more transverse. 



Phloeopora debiliceps n. sp. Small, slender, subparallel, only very 

 moderately convex and shining, black, the elytra gradually rufescent 

 behind the middle, the legs piceous; punctures strong, rather close-set 

 and asperate throughout, not denser or much stronger on the elytra 

 than anteriorly, very sparse toward the abdominal apex, parted along 

 the middle on the head except basally; pubescence rather stiff, moder- 

 ately close, not conspicuous; head rather small, slightly wider than long, 

 parallel and nearly straight at the sides, the eyes slightly prominent 

 and at a little more than their own length from the base; antennae piceous- 

 black, paler basally, moderate in length, gradually but not very strongly 

 incrassate distally, the first joint much longer than the second, the latter 

 a little longer than the third, which is constricted at base, the fourth 

 distinctly transverse, the tenth about one-half wider than long, the last 

 as long as the two preceding; prothorax two-fifths wider than long, dis- 

 tinctly wider than the head, parallel, with feebly arcuate sides, the base 

 broadly rounded, the angles obtuse but distinct, the surface unimpressed; 

 elytra quadrate, about as long as wide, distinctly wider and much longer 

 than the prothorax, the sinuses of the apex wholly obsolete; abdomen 

 slender, perfectly parallel, with straight sides, much narrower than the 

 elytra; tergites three to five increasing in length. Length 1.7 mm.; 

 width 0.28 mm. Nevada (Elko), Wickham. 



To be identified readily by its small size, slender form, rather 

 small head, absence of sinuses at the elytral apices and asperate 

 punctures. 



Phloeopora liberta n. sp. Slender, subparallel, moderately convex, 



