Superfamily Argiopoidea 



but little more than one twenty-fifth of an inch in length. Its 

 form is well-shown by the accompanying figure by Doctor Marx 

 ('91 ), who described the species (Fig. 297). It was found in caves 

 in California. 



Genus OCHYROCERA (Och-y-roc'e-ra) 



A single species from Olympia, Wash., has been placed in 

 this genus by Mr. Banks. Figure 298 represents the arrangement 

 of the eyes in this genus. 



Ochyrocera pacifica (O. pa-cif'i-ca). This tiny spider meas- 

 ures about one twentieth of an inch in length. Nothing has been 

 published regarding its habits. 



Family PRODIDOMIDS (Prod-i-dom-i'dae) 



The Prodidomids {Pro-did' o-mids) 



The prodidomids are two-clawed, eight-eyed spiders, with 

 dissimilar eyes in three rows, and very robust chelicerae, which 

 are furnished with very long and slender claws (Fig. 299). Only 

 one genus is represented in our fauna. 



Genus PRODI DOMUS (Pro-did'o-mus) 



These are small spiders measuring from one twelfth to one 

 sixth inch in length. They live under stones and in other dark 

 and dry places. 



Prodidomus rufus (P. ru'fus). — This is an extremely rare 

 species and is the only representative of the family that has 

 been found in the United States. It occurs in cellars and in dark 

 closets in houses in the South; it makes a tubular web or mesh 

 of threads. For a detailed description of the species see Banks 

 ('92 c). 



Family DRASSIDS (Dras'si-dae) 



The Dr ass ids (Dras'sids) 



The Drassidae includes those spiders having eight eyes 

 arranged in two rows and only two tarsal claws in which the form 

 of the body and the attitude of the legs are not those charac- 

 teristic of the crab-spiders, and which differ from the clubionids 



308 



