Casey — Observations on the Staphylinidae. '853 



eleventh oval, pointed, not quite as long as the two preceding com- 

 bined, fourth joint small and transverse; prothorax small, wider than 

 the head, one-half wider than long, the sides converging and feebly 

 arcuate from the broadly rounded basal angles to the apex, the base 

 strongly, subcircularly rounded and finely reflexed, the punctures 

 minute, sparse and irregularly distributed; elytra large, more strongly, 

 asperately and uniformly punctured, rather closely so, about a third 

 wider than long, nearly two-fifths wider and one-half longer than the 

 prothorax, the humeri well exposed and rounded, the suture impressed 

 almost throughout the length; abdomen at base as wide as the elytra, 

 feebly tapering and with slightly arcuate sides thence to the tip, 

 minutely, rather sparsely punctured throughout. Length 1.4 mm. ; 

 width 0.63 mm. California (Ojai;, — H. C. Fall californica n. sp. 



The abdomeu in the single specimen at hand is retracted 

 at apex, so that the sex cannot be determined. 



Thiuusa Csy. 



The tirst of the following species is the largest Phytosid 

 known to me : — 



Form stout, parallel, rather convex, brownish-testaceous, the prothorax 

 clearer, the abdomen black; legs pale, the antennae infuscate distally; 

 integuments dull, minutely and densely granulato -reticulate, the punc- 

 tures very minute and not distinct even on the elytra, the abdomen 

 finely, evenly and rather closely punctulate; pubescence pale, rather 

 long and conspicuous, directed outwardly from the median line on the 

 pronotum; head longer than wide, the eyes well developed and some- 

 what coarsely faceted but not prominent; antennae moderately incras- 

 sate distally, one -half longer than the head, the second joint nearly as 

 long as the next two combined, the eubapical transverse, the eleventh 

 very short, conoidal; prothorax slightly wider than the head and some- 

 what wider than long, widest at apical two-fifths, where the sides are 

 broadly arcuate, thence rather distinctly converging and somewhat 

 sinuate to the arcuato-truncate base, the angles very slightly rounded, 

 the surface with a very fine, feebly impressed and nearly entire median 

 line; elytra scarcely as wide as the prothorax and scarcely more than 

 two-thirds as long; abdomen parallel, very long, as wide as the pro- 

 thorax, the first three tergites strongly and the fourth feebly impressed 

 at base; hind tarsi longer than in maritima, with the first four joints 

 somewhat elongate and equal; claws much longer, compressed and 

 somewhat distorted. Length 2.6 mm.; width 0.68 mm. Queen Char- 

 lotte Island (Massett),— J. H. Keen fletcheri n. sp. (Fvl. MS). 



Porm very slender, minute, blackish-castaneous, the abdomen black, the 

 legs and antennae pale, opaque, densely and minutely granulato -retic- 

 ulate, the abdomen less strongly so; pubescence short and inconspicu- 

 ous; punctures very minute, obscure, distinct but fine and close-set on 



