STAPHYLINID.E. 169 



cavated space; hind tarsi rather short, the first joint scarcely so long as 

 the second. Length 1.5-1.65 mm.; width 0.43 mm. Rhode Island (Boston 

 Neck). 



There seem to be no well defined male sexual characters and in 

 many respects this species is by no means a typical Ousipalia. It is 

 one of the more interesting discoveries in the collecting ground 

 mentioned. 



Ousipalia hesperica n. sp. Narrower, parallel, rather convex, shining, 

 the punctures very small, sparse, the reticulation not arranged as in the pre- 

 ceding, coarser on the elytra than on the abdomen, the pubescence sparse, 

 stiff but short; color piceo-testaceous, the head and elytra blackish, the ab- 

 domen black but testaceous basally and flavate at apex, the legs pale; head 

 as long as wide, oval, sensibly inflated basally, rapidly narrowed at the ex- 

 treme base, the eyes with rather coarse though flat facets, at nearly twice 

 their length from the base, the carinae obsolete; antennae short, pale piceous, 

 paler basally, the second joint much shorter and thinner than the first, longer 

 than the third, the fourth slightly, the outer joints strongly, transverse, the 

 last moderate; prothorax somewhat transverse, much wider than the head, 

 as wide as the elytra, parallel, the sides straight, rounding anteriorly, the 

 apex less arcuate than the base, the surface having a small rounded and very 

 feeble impression at base, the hypomera moderately inflexed, wholly visible 

 from the sides; elytra short, with feebly diverging sides and transversely 

 truncate apices, the suture only just visibly shorter than the prothorax; 

 abdomen short, parallel, fully as wide as' the elytra, the fifth tergite much 

 longer than the fourth; hind tarsi with the first four joints subequal; middle 

 coxae and sterna nearly as in the preceding. Length 1.45 mm.; width 0.36 

 mm. California (Ojai), Fall. 



The wholly different hypomera indicates that this species, which 

 conforms much more closely to the European Ousipalia in general 

 organization, is probably generically different from tariarea. It is 

 possible in fact, that tartarea may really represent a distinct Athetid 

 genus near Acrotona. The single type of hesperica displays no 

 signs of sexual identity. 



Ousipalia pacifica n. sp. Stout, rather convex, narrower anteriorly than 

 posteriorly, pale testaceous, the head slightly darker, rufous, the elytra 

 rather more yellowish than the prothorax, the abdomen infumate, brighter 

 basally, at apex and finely along the apices of the tergites, the legs pale, 

 surface shining, the punctures very fine, sparse, the reticulation coarse, 

 head wider than long, slightly swollen basally, the eyes convex and prominent, 

 coarsely faceted, at about one-half more than their own length from the 

 base, the carinae fine but extending beyond the middle; antennae rather short 

 and moderately incrassate, pale, the sparse setae distinct, the second joint 

 much shorter and thinner than the first, much longer and less obconic than 

 the third, the fourth slightly, the outer joints much, wider than long, the 



