STAPHYLINID^:. 87 



readily from perspicua by its relatively stouter form, slightly longer 

 vestiture, more transverse head, rather less elongate and somewhat 

 more incrassate antennse, with the second and third joints equal 

 and shorter, by its more transverse prothorax, with unimpressed 

 median line, and other structural features. 



Atheta (Delphota) delumbis n. sp. Small, less parallel, the lustre 

 and sculpture almost similar, the micro-reticulation of the abdomen rather 

 large but feeble and irregular; color pale piceo-rufous, the head black, 

 the elytra pale tawny-yellow, the abdomen dark rufo-piceous, with a 

 large black subapical cloud and pale flavate apex, the legs, pale; pubes- 

 cence pale, moderately long and distinct; head large, almost five-sixths 

 as wide as the prothorax, transverse, the eyes well developed and some- 

 what prominent, at much less than their own length from the base, the 

 carinae apparently strong and entire; antenna 3 rather short, piceous, 

 paler basally, moderately stout but subparallel distally, the second and 

 third joints equal, fourth slightly, the outer joints one-half, wider than 

 long, the last gradually ogivally pointed and as long as the two pre- 

 ceding; prothorax two-fifths wider than long, parallel, with rather well 

 rounded sides, somewhat narrowing anteriorly, the base rounded, the 

 surface not evidently impressed; elytra distinctly shorter than wide, 

 subparallel, a little wider and not quite a third longer than the prothorax, 

 the apices as in the preceding and not sinuate externally; abdomen much 

 narrower than the elytra, parallel, with very feebly arcuate sides and 

 thin margins, the fifth tergite only very slightly longer than the fourth. 

 Length 1.7 mm.; width 0.55 mm. New Jersey. 



Very distinct from the two preceding and more properly perhaps a 

 true Atheta; it differs in the shorter antennse, with transverse and 

 not elongate fourth joint, much smaller size, narrower abdomen and 

 in the less narrowly separated middle coxae, with the mesosternal 

 process gradually acute and extending to their apical third, but less 

 finely aciculate though sharply pointed and very free at tip. 



Atheta (Delphota) callens n. sp. Subparallel, moderately convex, 

 shining, finely and asperulately but rather loosely punctate, sparsely 

 and more finely on the abdomen; pubescence unusually long, palish; 

 color blackish-piceous, the head black, the elytra paler tawny-red through- 

 out, the abdomen very dark testaceous, blackish posteriorly except at 

 tip, the legs pale; head transverse, parallel, rather more than three-fourths 

 as wide as the prothorax, the eyes moderately convex, at their own length 

 from the base, the tempora equally prominent, straight and parallel, 

 abruptly rounding at base, the carinae very feeble and extending barely 

 to the middle; antenme rather short and stout, blackish, paler basally, 

 gradually rather strongly incrassate, the second and third joints sub- 

 equal, only moderately elongate, fourth distinctly, the outer joints 

 fully one-half, wider than long, the last ogivally pointed and fully as 



