STAPHYLINID/E 237 



clouded discally, the abdomen blackish; surface more shining than in 

 insomnis but with dense short palish vestiture; head much larger, rather 

 more than half as wide as the prothorax, the antennae (cf) long, slender 

 and filiform, palish, the basal joint still paler, not as stout as in the pre- 

 ceding, twice as long as wide, the second relatively not quite so elongate 

 as in that species though much longer than the third, the outer joints all 

 much elongated; prothorax one-half wider than long, much less narrowed 

 apically than in insomnis, the sides evenly but not strongly arcuate, the 

 lateral basal sinuses deeper, the angles more abruptly prominent pos- 

 teriorly, right; elytra shorter, parallel, equal in width to the prothorax 

 but not quite four-fifths as long, the lateral sinuses at apex wider and 

 deep; abdomen strongly, conically tapering, the fifth tergite rather less 

 than half as wide as the base, the sixth with the apical angulate projec- 

 tion short, not as long as its basal width, the angle almost right. Length 

 2.55 mm.; width 0.83 mm. New York (near the city). 



Readily separable from insomnis by its paler and more shining 

 surface, shorter elytra, with deep lateral sinuses, and by several 

 other distinctive features. 



Myllsena abdita n. sp. Smaller, though stout and convex, rather 

 dull, the dense vestiture but slightly pale, the legs piceous to paler brown; 

 head half as wide as the prothorax; antennae (cf ) long and very slender, 

 filiform, black, the basal joint not or scarcely paler, the first three some- 

 what as in insomnis, the outer joints much elongated, the tenth fully 

 two-thirds longer than wide; prothorax a little less than one-half wider 

 than long, much narrowed apically but with the strongly arcuate sides 

 more parallel and arcuate basally than in insomnis, or apparently widest 

 before the base, the latter more transverse, the angles posteriorly flexed 

 and distinct; elytra scarcely as wide as the prothorax and notably shorter, 

 the suture about four-fifths as long, the outer sinuses at apex distinct and 

 rather deep; abdomen less strongly tapering than in the two preceding, 

 the fifth tergite evidently more than half as wide as the base, the angu- 

 lation of the sixth (c?) fully twice as wide as long, with the angle not very 

 sharp and rather more than right. Length 2.0 mm.; width 0.65 mm. 

 New Jersey (Elizabeth). 



This species can be known from either of the preceding by its 

 smaller size, less tapering abdomen and much shorter and broader 

 angulate apex of the sixth tergite in the male. 



Myllaena insipiens n. sp. Stout, only moderately convex, pale yellow- 

 ish-brown in color throughout, dull, the extremely minute punctures 

 and very short pale vestiture both unusually dense; head well developed, 

 three-fifths as wide as the prothorax, the pale antennae (c?) moderately 

 long, gradually and feebly incrassate distally, the first three joints 

 proportioned as usual, the tenth not quite one-half longer than wide, the 

 eleventh almost as long as the two preceding; prothorax short, about 

 three-fifths wider than long, only moderately narrowed at apex, the sides 



