STAPHYLINID.E. 53 



transverse and but little longer than the fourth, the side margins moder- 

 ately thick. Length 1.6 mm.; width 0.46 mm. California (Pomona, 

 Los Angeles Co.), Fall. 



Related rather closely to implicata and resembling it in coloration, 

 in the well developed head and antennal structure; but the antennae 

 are slightly shorter, the prothorax much less transverse and with 

 more arcuate sides and the abdomen is relatively much broader, 

 with the fifth tergite distinctly shorter and more transverse, making 

 allowance for relative degree of exposure due to retractibility of the 

 segments. 



Soliusa Csy. 



This genus is closely related to Homosusa Kr., but differs in having 

 scarcely a vestige of the fine acutely impressed groove along the base 

 of the first two tergites characterizing Homtzusa, and furthermore 

 has much smaller and more coarsely faceted eyes and materially 

 shorter tarsi; it is founded upon a diminutive and rather narrow, 

 hirsute species, with small and very prominent eyes, named crinitula 

 by the writer (Journ. N. Y. Ent. Soc., VIII, 1900, p. 54). The 

 following is another species of the genus: 



Soliusa frosti n. sp. Stout, limuliform, moderately shining and con- 

 vex, blackish-piceous, the pronotum toward base and sides, the entire 

 elytra and the abdominal apex pale piceo-flavate, the legs very pale; 

 punctures fine, asperulate, well separated throughout, the pubescence 

 rather long, coarse, pale, decumbent and not very dense; head short and 

 strongly transverse, scarcely more than half as wide as the prothorax, 

 the small anterior eyes convex and rather prominent; antennae stout, 

 extending to basal third of the elytra, gradually strongly incrassate, 

 dark red-brown in color throughout, the first two joints subequal, the 

 third slightly shorter, a third longer than wide, four to eight very short 

 and transverse, increasing greatly in size, the latter twice as wide as long, 

 the ninth and tenth mutually similar but only one-half wider than long, 

 the last gradually, obtusely pointed, longer than the two preceding; 

 prothorax twice as wide as long, the sides rounding and converging 

 anteriorly, becoming parallel basally, the base broadly arcuate, becoming 

 feebly sinuate laterally; elytra transverse, fully as wide as the prothorax, 

 the suture about as long as the latter, the sides feebly rounding basally, 

 the apices very broadly and feebly sinuate laterally; abdomen at base 

 distinctly narrower than the elytra, thence rapidly and evenly tapering, 

 with straight sides and moderate margins, to the fifth tergite, which is 

 scarcely three-fifths as wide as the first and one-half longer than the 

 fourth. Length 2. 1 mm.; width 0.77 mm. Massachusetts (Framingham), 

 C. A. Frost. 



