178 . H. 0. FALL. 



scarcely impressed, slightly irregular rows of fine approximate punc- 

 tures, the intervals much wider than the punctures. Front and 

 middle coxa? widely separated, the presternum flat and truncate 

 behind ; metasternum rather deeply concave in front. Ventral seg- 

 ments free and simply punctate, the extreme margins granulate; 

 first and fourth segments shortest, second longest, third and fifth 

 suhequal and intermediate in length ; first and second ventral 

 sutures anteriorly arcuate at middle. Femora not clavate r tibia? 

 rather slender, the outer apical angle acutely produced in the two 

 anterior pairs; tarsi moderate, the first joint nearly twice as long as 

 wide as viewed from above, second joint a little longer than wide, 

 third and fourth as wide as long, fifth longer than wide, moderately 

 dilated ; claws simple. 



This genus is erected for a single Californian species, which is 

 intermediate in its characters between Trichodesma and Anobium, 

 the sculpture of the under surface and the vestiture pointing toward 

 the former, while the excavate metasternum suggests Anobium, in 

 which, however, the excavation is deeper, the tarsi narrower and 

 the palpi of different form. 



1. A. sericans n. sp. — Subcylindrical, more tban twice as long as wide, 

 pieeous brown, clothed with rather dense, recumbent brown and cinereous hairs, 

 with numerous longer erect hairs. Head finely granulate. Prothorax about as 

 long as wide, sides nearly parallel in anterior half, then rounded and convergent 

 to base, with which they form a continuous curve, the hind angles not defined ; 

 front angles right, disk strongly gibbous and compressed, the median line cari- 

 uate from the front margin to the summit of the gibbosity ; surface densely gran- 

 ulate, vestiture dark brown, with four paler discal spots. Elytra evidently 

 wider than the prothorax, the recumbent pubescence holosericeous, the cinereous 

 hairs so disposed and directed as to give the appearance of a dark submedian 

 fascia and subapical spot with some smaller dark areas irregularly disposed. 

 Legs finely cinereous pubescent, with longer hairs. Sterna with numerous rather 

 large rounded granules; ventral surface rather sparsely simply punctate, the 

 margins of the segments granulate. Length 5.4 mm. 



Described from a single individual of unknown sex, beaten from 

 dead branches of live oak at Pomona, California, May. This is 

 the species referred to in my California list as Xestobium n. sp. fol- 

 lowing a determination by Dr. Horn. 



ANOBIUM Fabricius. 



The old genus Anobium, established by Fabricius in his Systema 

 Entomologise (1775), was, like most of the early genera, made to 

 cover a far. greater diversity of forms than the more scientifically 



