258 CALIFORNIA ACADEMY OF SCIENCES. 



76. Xylophilus brunnescens, sp. nov. 



Elongate-oblong, moderately convex, rufotestaceous, the elytra becom- 

 ing darker posteriorly, head and under surface brownish, legs and antennae 

 paler; integuments shining; pubescence pale brown, moderate in length, 

 not dense. Head much wider than the prothorax, sparsely, finely punc- 

 tate; front concave between the eyes, declivous anteriorly, the epistomal 

 suture fine and feeble. Eyes moderately large, separated on the front by 

 about three-fourths their own width, the inner margin faintly emarginate; 

 tempora parallel and about one-third the length of the eyes. Antennae 

 fully two-thirds the length of the body, scarcely thicker apically; first 

 and third joints subequal, second joint half as long, joints four to ten 

 subequal, a little shorter than the third, last joint a little longer and wider 

 than the tenth, pointed. Prothorax subquadrate, sides parallel and im- 

 pressed at the middle and again at the front angles, disk with a trans- 

 verse, subbasal impression; surface more closely and a little less finely 

 punctate than the head. Elytra nearly twice as wide as the prothorax, 

 punctuation coarse, the punctures separated by rather less than their own 

 diameters toward the base, but somewhat finer and less close apically. 

 Beneath shining, the sides of the metasternum with sparse, coarse punc- 

 tures, the abdomen finely, very remotely punctate. First abdominal 

 suture nearly obliterated but traceable at sides. The first and second 

 segments are subequal, the third a little shorter, fourth equal to the sec- 

 ond, fifth one-half longer than the fourth, the apex evenly rounded, the 

 disk unmodified. Front and middle thighs slender, the posterior stout 

 and densely pilose beneath; first joint of hind tarsi about three times as 

 long as the remaining joints united, and about three-fourths as long as 

 the tibia. Front tibise with a short, slender spur at the inner apical 

 angle. 



Length, 2.3 mm. 



Described from a single male taken in the San Ber- 

 nardino Mountains, in July. 



By Casey's table X. brunnescens must be referred to 

 his genus Vanonus. It differs from any of the species 

 there mentioned in its color and the stout hind thighs, 

 and apparently from all except X. wickhami in the well 

 developed tempora. It should be placed before X. wick- 

 hami. The spur of the anterior tibia will very likely 

 prove to be a male character. 



