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. gibbicollis, Pomona, San Ber- 

 nardino Mountains; June and July; not common. One 

 specimen of an undescribed species near foveatus was 

 taken at Lake Tahoe. 



Trichodesma. T. cristata, middle California. 

 Anobium. A. quadrulum, Lake Tahoe and north. 



Trypopitys. T. punctatus, Los Angeles, Riverside, 

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

 one example, Catalina Island. 



Petalium. P. bistriatum is not rare in the southern 

 Sierras. 



Theca. T. striatopunctata, "Cal." (Le Conte). 



Vrilletta. The three species on our list convexa, 

 expansa and murrayi 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 lugubris, 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 



