STAPHYLINIDJE. 139 



having the abdomen rather short and abruptly inflated and the 

 antennae with the basal joint as long as the head. This species is 

 therefore casually inquilinous, though it is my impression that the 

 genus as a whole is more essentially fungivorous in habits. 



Dolosota flaccida n. sp. Body nearly similar to the preceding throughout 

 in coloration, in its slender form and in the sculpture, the latter however 

 less strong, the reticulation of the abdomen virtually obsolete; head relatively 

 perhaps still a little smaller but more inflated basally, the tempora as long 

 as the eyes and slightly more prominent; antenna? much smaller and more 

 slender, the stout basal joint one-half longer than the second and much thicker 

 than either two or three, the last being the shorter as usual, the outer joints 

 only just visibly incrassate, four as long as wide, ten scarcely visibly wider 

 than long, the last slender, scarcely as long as the two preceding, the color 

 pale brownish-testaceous, feebly paler at apex and basally; prothorax similar 

 but shorter and more transverse, distinctly wider than any part of the elytra, 

 the latter short and transverse, the suture only about three-fourths as long 

 as the prothorax; abdomen nearly similar, though perhaps more developed 

 in length. Length 1.65 mm.; width 0.33 mm. Mississippi (Vicksburg). 



Distinguishable from secunda by the much smaller and less in- 

 crassate antennae and still shorter elytra. 



Dolosota abundans n. sp. Coloration and sculpture nearly similar to 

 the three preceding, the abdominal reticulation coarse but very feeble, the 

 elytral vestiture suberect, somewhat as in scapula; head short and strongly 

 transverse, slightly swollen at base, the eyes rather well developed, at less 

 than their own length from the base and not quite so prominent as the tem- 

 pora; antenna? moderately long, larger than in flaccida, gradually feebly 

 incrassate, just visibly infumate but a little paler basally and at apex, with 

 the usual bristling seta?, the outer joints only very little wider than long, the 

 last well developed, acutely ogival from behind the middle to the tip and a 

 little longer than the two preceding; prothorax rather more parallel at the 

 sides and less greatly exceeding the elytra in width, much wider than the 

 head, the sides rather less arcuate than usual and only just visibly converging, 

 though more rounded, apically, wholly unimpressed; elytra short, the suture 

 but little more than three-fourths as long as the prothorax, the apical sinuses 

 broad and shallow; abdomen as in secunda. Length 1.4 mm.; width 0.32 

 mm. Missouri (St. Louis). 



Although similar in general characters to the three preceding and 

 scopula, this species may be known by the differential characters 

 given above. 



In the following three species the head would be noted as un- 

 usually small, and is especially so when actually compared with the 

 preceding section of the genus, but the elytra also are more de- 

 veloped, being much longer than the prothorax: 



