XXXI, '2OJ ENTOMOLOGICAL NEWS 247 



clypeus moderately hairy; genae and upper part of mandibles with numer- 

 ous fringed hairs. 



Thorax one-fifth wider than long, divided into a discal and two lateral 

 areas by a suture-like groove which extends nearly to apical border and 

 is paralleled by the shallow sulcus of the discal area, said sulcus being 

 smooth, shining and impunctate; discal area twice as wide at base as at 

 apex, moderately, thickly, coarsely punctured, each puncture with a 

 slightly squamose, fringed hair which becomes longer and more pointed 

 toward the base; lateral area widest in front, the apical angles obtusely 

 rounded, divided at basal third by a deep, transverse sulcus; front por- 

 tion moderately thickly punctured, punctures with fringed hairs which 

 are longer at sides and edge of sulcus over which they project; basal por- 

 tion of lateral area piceous, tuberculate with a few punctures on its sur- 

 face, becoming more numerous on the outer side. 



Elytra shining, moderately thickly punctured, hairy, coarsely striate; 

 first stria from elytra 1 suture nearly reaching apical margin, broad and 

 shallow at base, becoming narrow at apex, outer edge raised and thickly 

 covered with squamose fringed hairs; second stria almost as long as first 

 and like it broad and shallow at base; outer edge raised and bordered with 

 squamose fringed hairs which are not as dense as on first stria; third stria 

 slightly shorter than second with raised edges, having fewer and shorter 

 fringed hairs than second stria and likewise broadened at base; subhumeral 

 stria extending two-thirds the length of elytra, also broadened at base; 

 the broad basal part of all striae smooth, shining, impunctate; striae one 

 and two with a few longer, branched hairs at base; interstrial spaces 

 moderately, thickly, coarsely punctured, each puncture with a depressed, 

 squamose, fringed hair and among them a few erect, long, simple hairs. 



Prosternum opaque, rugose-punctate; margined ventral surface moder- 

 ately punctate and with fringed hairs, marginal striae extending one- 

 half length of prosternum, very slightly inflexed at cephalic end, not 

 enclosing area. 



Thoracic and abdominal segments shining, moderately punctate, 

 punctures with fringed hairs. 



Pygidium and propygidium moderately evenly punctured, punctures 

 with fringed hairs. 



Legs shining, moderately punctate, punctures with fringed hairs. 



Length 3 mm., width 2 mm. 



Described from three examples from the collection of Dr. 

 E. C. Van Dyke, taken at Merced Lake, San Francisco, 

 California, in the nests of a grey Formica by Mr. F. X. Wil- 

 liams, for whom I have named it. Type in the collection of 

 Dr. E. C. Van Dyke, paratype in my own collection. 



This species has the same form as that figured by Dr. 

 Horn* as morsus, Lee. but the elytral striation is quite dif- 



* Trans. Am. Ent. Soc. Vol. Ill (1870), PI. i. 



