246 ENTOMOLOGICAL NEWS [XXXI, ? 2O 



branched hairs which are combed inward, partly covering the tuberculate 

 portion. 



Elytra shining, hairy, slightly wider than adjacent base of thorax, 

 sides sinuate at base, nearly straight at middle, gradually curving inward 

 to the obtusely rounded, outer apical angle, the truncate tips slightly 

 arcuate; first stria from the suture nearly reaching to apical margin, sinu- 

 ate, outer edge raised and densely covered with inward pointing, squa- 

 mose, fringed hairs which at basal third become long, branched hairs 

 directed inward and form at base a brush-like tuft which meets a similar 

 thoracic tuft at an acute angle, their tips intermingling; second stria about 

 five-sixths the length of elytra, broad, shallow and rounded at base, 

 smooth and impunctate; third stria not as broad as second, nearly meet- 

 ing second at tip, subhumeral stria extending two-thirds the length of 

 elytra; the outer edge of all striae being raised; interstrial spaces moder- 

 ately punctured, punctures bearing depressed; squamose, fringed hairs 

 and among them a few, long, simple hairs. 



Prosternum punctate rugose, ventral surface two-thirds its length; area 

 within the margin shining, sparsely punctate with two slightly converg- 

 ing ridges which are widest apart caudally and extend two-thirds the 

 length of the margining striae; marginal striae bent inward at cephalic 

 end but not meeting. 



Thoracic and abdominal segments smooth, shining, sparsely micro- 

 scopically punctured. 



Legs smooth, shining, moderately punctured, punctures without hairs. 



Propygidium moderately, thickly punctured, punctures with squamose 

 fringed hairs. Pygidium smooth, shining, with a few microscopic punc- 

 tures. 



All hairs of the various parts described are yellow. 



Length 2.5 mm. width 1.8 mm. 



Described from two examples; one, the type, taken by my- 

 self at Mill Valley, Marin County, California, is in my own 

 collection, the other, a paratype, is from San Francisco and 

 is in the collection of Dr. E. C. Van Dyke. 



This species resembles loripes Casey, but differs from it in 

 elytral striation and the brush-like tufts of hairs. I have com- 

 pared it very carefully with tristriatus Horn, from which it is 

 distinct in elytral striation, its hairy tufts and the absence of 

 hairs on the sides of the legs which in tristriatus are present 

 though very small. 



Hetaerius williamsi sp. nov. 



Body oblong, one-third longer than wide, shining, castaneous, hairy. 

 Head shining; vertex concave, shining, evenly, moderately, coarsely 

 punctured, each puncture with a stout fringed hair; front nearly smooth. 



