Casey — Observations on the Staphylinidae. 209 



alolaceous, the punctures everywhere minute and feeble; disk very 

 broadly, rather feeoly impressed along the middle in almost median 

 third; elytra not quite as long as wide, about a third wider and longer 

 than the prothorax, the humeri very narrowly exposed, the sides arcuate, 

 the suture distinctly impressed behind the scutellum; hind tarsi fully 

 four-flf ths as long as the tibiae, with the basal joint unusually elongate, 

 longer than the next two combined; sixth ventral evenly rounded at 

 tip; male unknown. Length 2.5 mm.; width 0,65 mm.; North Caro- 

 lina (A&heville) snbalntacea n. sp. 



Lustre rather dull, the punctures fine and close- set throughout, the inter- 

 stices on the pronotum not reticulate in the apparent female, blackish- 

 piceous, the abdomen rufescent, blackish posteriorly, the elytra castan- 

 eous, gradually flavescent toward the apical margin, the antennae 

 fusco-flavate throughout; head slightly elongate, the sides behind the 

 eyes only feebly converging and arcuate; antennae shorter than usual^ 

 distinctly incrassate distally, but little longer than the head and pro- 

 thorax, the second joint slightly longer and thicker than the third, the 

 three subapical distinctly wider than long, the eleventh as long as the 

 two preceding combined and thicker, obtusely rounded at tip; prothorax 

 large, convex, nearly a fifth wider than long, broadly, feebiy rounded 

 at the sides and but little narrowed toward base, the surface evenly 

 convex except a small and very feeble, transversely arcuate imprtssion 

 before the scuteilum; elytra only very slightly wider than the prothorax 

 and about a third longer, the sides parallel and arcuate, the humeri 

 scarcely at all exposed at base; abdomen much narrower than the 

 elytra, the sides only feebly converging toward base; legs but moder- 

 ately slender. Length 2.5 mm.; width 0.61 mm. Missouri. 



inissoariaua a. sp. 



10 — Form moderately stout, strongly convex, piceous -black, the el-^vr 

 piceo-testaceous, blackish toward base, the two basal ventrals feebly 

 rufescent. Male with the head slightly though distinctly narrower than 

 the prothorax, scarcely impressed, rather abruptly narrowed at base, 

 very obsoletely subreticulate and scarcely perceptibly punctulate ; an- 

 tennae about attaining basal third of the elytra, only slightly incrassate 

 distally, the second joint but slightly longer than the third, the ninth 

 and tenth somewhat transverse, the former distinctly the shorter of the 

 two; prothorax only very slightly wider than long, the sides subparaliel 

 and feebly arcuate, the apex almost as wide as the base, the surface 

 strongly convex, minutely, closely and subgranularly punctulate 

 throughout, with smooth polished interspaces, the median line very finely 

 and obsoletely impressed toward base; elytra fully two-fifths wider 

 and longer than the prothorax, scarcely visibly and broadly impressed 

 behind the scutellum, minutely, rather closely, asperulately punctulate, 

 the humeri somewhat well exposed; abdomen excessively minutely, 

 densely punctulate and finely, closely pubescent, the hairs closely 

 decumbent; hind tar.-*i with the first joint almost as long as the next two 

 combined; sixth ventral with a very small shallow subparabolic sinus, 

 about four times as wide as deep. Female nearly similar in general 

 form, the head notably smaller, feebly impressed along the middle; 

 antennae and tarsi nearly similar; prothorax larger and much more 



