C^Cz.^ 



PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Fourth Series 



Vol. XI, No. 7, pp. 99-102, text figures 1-5. September 29, 1921 



VII 



NEW CALIFORNIAN SPIDERS 



NATHAN BANKS 



The following new species of spiders are from a collection sent 

 by the California Academy of Sciences to Mr. Emerton and 

 myself for identification. Most of the material was taken by 

 Mrs. E. P. (Helen) Van Duzee during the past few years and 

 forms a part of the collections of the California Academy of 

 Sciences where the holotypes are deposited. Para types are in 

 the Museum of Comparative Zoology at Cambridge, Mass. 



1 . Psilochorus apicalis, new species 



Very similar in general to P. California. It differs in that in 

 the male the tooth on the mandible in front is near the lower 

 end and reaches to the tip of the mandible and is barely raised 

 above the surface. In color it is pale yellowish, the cephalo- 

 thorax with a median dark stripe, forked in front; the tips of 

 the femora show very faintly a dark apical band ; the abdomen is 

 gray; of the same size as P. California. 



Figure 1. — Side view of manible. 



Holotype, male, No. 737, Mus. Calif. Acad. Sci.; John I. 

 Carlson collector. 



Type locality, Sierra Madre, Los Angeles Co., Calif. 



September 29, 1921 



