STAPHYLINID^:. 119 



collected by Prof. Wickham; male sexual characters are not ap- 

 parent. 



Clusiota n. gen. 



This name is suggested for a minute species, with remarkably 

 modified basal joints of the antennae. The sterna are not clearly 

 observable, but the coxae are well separated, the interval between 

 the sternal apices cavernous and the metasternal projection large 

 and angulate. The hind tarsi are slender, the two basal joints 

 equal and each distinctly shorter than either the third or fourth. 

 The cephalic carinae are very fine but completely entire. In its size, 

 horizontal and warped hypomera and some other features, it is 

 allied to Datomicra. 



Clusiota claviventris n. sp. Slender, somewhat shining, black, the elytra 

 and abdomen except posteriorly, dark rufo-piceous, the legs slender, blackish- 

 piceous; micro-reticulation everywhere distinct, rather coarse but feeble on 

 the abdomen; punctures fine, not dense, the pubescence rather short but 

 coarse, not close; head large, quadrate, barely at all wider than long, the 

 eyes convex .and prominent, at fully their own length fronVthe base, the tem- 

 pora equally prominent, parallel and rounded; antennae black throughout, 

 moderate in length, slightly incrassate, the outer joints evidently transverse, 

 the last as long as the two preceding, the basal joint large, compressed and 

 obtriangular, its apex broadly, subobliquely truncate, the short and very 

 stout, basally much narrowed second joint attached near the outer limit of 

 the apex of the first, the third slightly shorter than the second, about a 

 third longer than wide, slightly less stout but still more narrowed to its very 

 slender base, the fourth subquadrate; prothorax only slightly transverse, just 

 visibly wider than the head and much narrower than the elyta, widest and 

 with broadly rounded sides at about apical third ; elytra large, with straight 

 and slightly diverging sides, only slightly abbreviated, the apices not sinuate 

 laterally, about one-half longer than the prothorax; abdomen at base much 

 narrower than the elytra, inflated, less punctate, more convex and more 

 polished apically. Length 1.5 mm.; width 0.28 mm. British Columbia 

 (Glenora) , Wickham. 



The single type is probably a male, as the sixth tergite is simply 

 and moderately sinuate at the middle and the large sixth ventral 

 plate broadly subtrapezoidal; so it is impossible to state to what 

 degree the singular antennal and abdominal characters may be due 

 to sex. 



Datomicra Rey. 



This name is here applied to a considerable series of minute 

 species, characterized especially, as in zosterce, by horizontal and 

 warped hypomera and approximate middle coxae, with the mesoster- 



