Casey — Observations on the Staphylinidae. 243 



and having very widely exposed oblique humeri, impressed behind the 

 scutellum, the punctures extremely minute, sparse and scarcely visible; 

 abdomen parallel, with evenly arcuate sides, much narrower than the 

 elytra throughout, minutely, rather closely but not distinctly punctu- 

 late, the first segment longer than in the preceding species, narrower 

 at base and more dilated at tip, with its surface flat, the impression 

 large and posteriorly arcuate but shallow, coarsely, closely punctured 

 in median half, the second and third impressions narrow and having 

 some coarse, moderately close-set punctures except at the sides ; legs 

 very slender, the hind tarsi almost as long as the tibiae, the basal joint 

 as long as the entire remainder. Length 2.5-2.8 mm.; width 0.(56 mm. 

 Pennsylvania, Iowa and Wisconsin. [_:= Falagria cing . Lee.]. 



cingalata Lee. 

 Body nearly similar but notably more slender, polished, piceous-black in 

 color, the sides of the elytral base slightly pale, the first two ventrals 

 testaceous though blackish in the impressions; legs and antennae 

 piceous-black, the latter toward base and the tarsi pale; vestiture not 

 distinct; head orbicular, fully as long as wide, convex, minutely, very 

 sparsely and scarcely visibly punctulate except at the base, where the 

 punctures become close, strongly asperate and distinct; antennae long 

 and very slender, scarcely perceptibly incrassate distally, extending 

 rather beyond the elytra, the third joint distinctly longer than the 

 second, the subapical equal and much longer than wide, the eleventh 

 elongated and slender but not as long as the two preceding combined ; 

 prothorax in outline nearly as in cingulata but not evidently 

 narrower than the head, the sulcus deep but somewhat more abruptly 

 formed, the bordering surface almost similarly convex but with the 

 minute sparse punctulation not evidently closer, coarser or more 

 asperate; scutellum finely granulose, finely carinate but only toward 

 base; elytra similar in form but notably narrower, with the sparse 

 punctulation more asperate and rather more evident, the post-scutellar 

 impression broad and evenly concave; abdomen throughout nearly as in 

 cingulata, the fine punctulation rather less close-set but more asperu- 

 late; legs very slender, the extremely slender and filiform hind tarsi 

 having the basal joint apparently even longer than the entire remainder. 

 Length 2.6 mm.; width 0.6 mm. Ohio (Cincinnati) and Iowa. 



tennicornis n. sp. 



7 — First impression of the abdomen coarsely, rather conspicuously punc- 



tured at least toward the middle 8 



Basal impression similar to the second and third, acutely impressed, pol- 

 ished and impunctate or nearly so 9 



8 — Form slender, convex, polished, dark piceous or blackish, the elytra at 



base and apex, the first ventral and apex of the second, tibiae, tarsi and 

 antennae toward base, pale fiavate, remainder of the latter and femora 

 piceous; pubescence fine, inconspicuous; head convex, wider than long, 

 transversely arcuate at base with rounded angles, the punctures very 

 minute and sparse, not notably asperulate on the occiput; antennae 

 rather stout, attaining the middle of the elytra, distinctly incrassate 

 distally, the three subapical joints obviously transverse, the third 

 slightly longer than the second ; prothorax elongate, nearly as in the 



