Pomona College, Claremont, California 9 



Obisiidae. Spinneret small knob. Serrula attached only at base. Carapace not 

 divided. 



Obisium macilentum Simon, Claremont-Mt. Shasta. 



Blothrus californicus Bks., S. Calif. 



B. magnus Ewing. Shasta Springs. 



Linn Syst. Nat. ed. 12, 1767. Ann. Ent. Soc. Fr. 1878. Jour. N. Y. Ent. Soc 1895. 

 Jour. Ent. Zool. June 1914. Jour. Ent. Zoo). Dec. 1911, V. 3, p. 633, 1914, 6, p. 818, 

 p. 6, No. 4, p. 87, V. 9, 1917, p. 26, V. Canad. Ent. 1893, p. 67, also 1891, p. 165. 



