STAPHYLINID^E. 121 



dark brown, the head and abdomen deeper black, the legs pale; head 

 relatively rather large, the eyes prominent and at much less than their 

 own length from the base; antennae nearly as in dccolorata but rather 

 more slender, rather long, dark in color and very feebly incrassate, the 

 fourth joint fully as long as wide, the outer joints only slightly trans- 

 verse; prothorax very moderately transverse, parallel and subevenly rounded 

 at the sides, scarcely a third wider than the head and a little narrower 

 than the elytral base, the median line very finely and feebly impressed 

 throughout; elytra relatively a little larger than in the preceding but other- 

 wise nearly similar, the suture rather more than a fourth longer than the 

 prothorax; abdomen slightly narrower than the elytra, feebly and evenly 

 though evidently tapering throughout, the fifth tergite longer but scarcely 

 less punctate than the fourth, the sixth (6") with the two median teeth smaller 

 and not longitudinally tumid, the lateral much shorter than in the preceding, 

 the middle interval a little wider than the lateral. Length 1.5 mm.; width 

 0.32 mm. Xew York (Catskill Mts.). 



This species is not at all close to the preceding in its structural 

 characters or coloration, particularly in the larger head and in the 

 prothorax and abdomen. 



Datomicra schematica n. sp. Moderately stout, fusoid, rather dull, the 

 small dense punctures very strongly asperate throughout, sparse on the more 

 shining abdomen; color piceous-black, the elytra rather pale brown, the legs 

 pale; head wider than long, the eyes rather large and convex, at less than 

 their own length from the base, the arcuate tempora less prominent, the 

 carinae entire; antennae piceous-black, moderately long, gradually and per- 

 ceptibly incrassate, the second and third joints elongate and similar, gradu- 

 ally narrowed basally, the former distinctly the longer, the outer joints dis- 

 tinctly transverse, the last longer than the two preceding; prothorax rather 

 transverse, parallel and moderately arcuate at the sides, much wider than 

 the head and only just visibly narrower than the elytral base, the median 

 line feebly impressed ; elytra rather transverse, truncate, the suture scarcely 

 a fourth longer than the prothorax; abdomen at base but little narrower 

 than the elytra, thence gradually though very slightly narrowed to the tip, 

 the sixth tergite (cf ) with a rather long and slender process at each side of 

 the apex and two intermediate teeth, which are somewhat slender and feebly 

 inclined upward, each separated from the lateral process slightly less than 

 from each other. Length 1.3-1.4 mm.; width 0.28 mm. Pennsylvania 

 (Philadelphia). 



This species and the two preceding differ from zostera in their 

 much more asperate sculpture and more pronounced male sexual 

 characters. The following species, from southern California, re- 

 sembles zostercB more closely, but differs in its much smaller antennae: 



Datomicra pomonae n. sp. Deep black throughout, the elytra not evi- 

 dently paler, the legs nearly black; surface much more shining than in the 

 preceding, the reticulation everywhere distinct, the punctures, however, 



