364 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



PSEUDOSCORPIONIDA. 

 CHELIFERID^. 



Chelifer cancroides Linnceus. Syst. Nat. ed. xii, 1767, 

 p. 1028. 



Specimens from Lake Tahoe (Hubbard). 



Chelifer scabrisculus Simon. Ann. Ent. Soc. France, 

 1878, p. 154. 



Specimens from Southern California (Curtice). 



Chelanops acuminatus Simon. Ann. Soc. Ent. France, 

 1878, p. 155. 



A few specimens from Los Angeles (Davdson). 



Chelanops validus Banks. Journ. N. Y. Ent. Soc. 1895, 

 p. 7. 



From Lake Tahoe, July (Hubbard). 



Chelanops dorsalis Banks. Journ. N. Y. Ent. Soc. 1895, 

 p. 8. 



Described from Lake Tahoe, July (Hubbard). 

 OBISIID^. 



Ideobisium threveneti Simon. Ann. Soc. Ent. France, 

 1878, p. 156. 



Ideoroncus obscurus Banks. Can. Entom. 1893, p. 67. 

 One specimen from Lake Tahoe (Hubbard). 



Obisium macilentum Simon. Ann. Soc. Ent. France, 1878, 

 p. 156. 



One from Southern California (Curtice). 

 Blothrus californicus Banks. Can. Entom. 1891, p. 165. 

 From Southern California (Curtice). 



