Pomona College Journal of Entomology 421 



Liobunum 



To this genus belongs the excessively long-legged forms. Many species 

 are known from the eastern United States, and from Europe, but only two 

 are so far recorded from the West Coast, one of these, however, is very 

 common. 

 1. Two large yellow s]3ots over the junction of the cephalothora.x and 



abdomen bimaculatitm. 



No large yellow spots on junction of the cephalothorax and abdomen 

 cxilipcs. 



Liobunum exilipes Wood 

 Adult males are dark brown, with some scattered small pale spots, a larger 

 pale spot in front of the eye-tubercle, and the palpus, except the tarsus, is 

 black. The female is paler, and, when mature, shows a dark vase mark on the 

 dorsum. Young are pale, mottled with brown and black. In both sexes the 

 trochanters are darker than the coxse, and the tips of the femora and tibiae 

 are more or kss distinctly paler than the rest of the joint. Specimens have 

 been examined from Mt. Shasta, Santa Clara County, Los Angeles, Clarc- 

 mont, Santa Rosa Island, and it also occurs in Washington State. 



Liobunum bimaculatum Bks. 

 This species has still longer legs than L. exilipes; it is dark brown in color, 

 with two prominent yellow spots, and the trochanters are no darker than 

 the coxae. I have seen it only from near San Diego. 



