132 CALIFORNIA ACADEMY OF SCIENCES. 



Ctenobium. — One example of an undescribed species 

 taken at Riverside at electric light. 



Ptinodes. — P. setifer, San Diego; the type alone is 

 known to me. 



Hadrobregmus. — H. gibbicoUis, Pomona, San Ber- 

 nardino Mountains; June and July; not common. One 

 specimen of an undescribed species neSiY foveatus vi&s 

 taken at Lake Tahoe. 



Trichodesma. — T. cristata, middle California. 



Anobium. — A. quadrulum, Lake Tahoe and north. 



Trypopitys. — T. pundatus, Los Angeles, Riverside, 

 Pomona, Pasadena, etc.; July and August: temulineata, 

 one example, Catalina Island. 



Petalium. — P. bistriaturti is not rare in the southern 

 Sierras. 



Tbeca. — T. striatopunctata, "Gal." (Le Conte). 



Vrilletta. — The three species on our list — convexa, 

 expansa and inurrayi — are described by Le Conte from 

 California without definite locality; I have seen only 

 convexa from our district, but all may occur there; 

 expansa is not uncommon near San Francisco. 



Xyletinus. — Specimens both black and brown, identi- 

 fied by Dr. Horn as lugiibris, are not rarely taken by 

 beating in the foot-hills near Pomona in May and June. 

 Le Conte mentions the taking by Crotch of a species at 

 Calaveras which scarcely differs from fucatus, and is so 

 referred by him. 



Catorama. — C. frontalis may be taken in moderation 

 by beating Quercus agrifolia; Pasadena, May and June. 



Hemiptychus. — H. latus occurs on the Southern Cali- 

 fornia sea beaches, but not plentifully: pusillus, Yuma 



