PROCEEDINGS OF THE NATIONAL MUSEUM 



VOL. 81 



Much of the preparation of this paper was carried on at the 

 British Museum (Natural History) in London, and special gratitude 

 is expressed to Maurice Burton, of that institution, for cooperation 

 kindly extended. To the officials of the United States National 

 Museum, grateful acknowledgment also is made for the loan of speci- 

 mens for study and for literature otherwise inaccessible. 



121° 119° 



Figure 1. — Sketch map showing California localities mentioned in text of this 



rtport 



So far as possible, representative and type specimens or a por- 

 tion of these have been deposited in the United States National 

 Museum in Washington (U.S.N.M.) and in the British Museum 

 (Natural History) in London (B. M.), and, unless otherwise indi- 

 cated, the descriptions given are based on the material so referred 

 to. Under the headings " Type locality" and " Material examined " 

 will be found notes upon the occurrence and habit of the species. 



