N='- 1-28-1. LIST OF ARIZONA SPIDERS— BANKS. 221 



Family GAMASID.E. 



GAMASUS, sp. 



A few speciiiioiis takiMi at Williams, May 23, in a nost of a Laslus. 



-DISCOPOMA HIRSUTA, new species. 



l^ale 3'ellowish throughout. Body a little^ broader than long-; con- 

 vex above; rather liroader in front, and slightly i)ointed behind; its 

 sides almost parallel. Dorsum smooth, quite thickly covered with 

 long, slender, erect hairs. Sternum nearlv as wide behind as in 

 front, its surface, as well as that of the ventral plate, very finely 

 granulate. Legs short and stout, of usual shape, provided with a 

 few hairs. 



Length, 0.02 mm. 



Taken at Williams June 1, with a species of Laslus. It.differs from 

 oui- other species of DiHcopoma {D. clrctilaris) in the clothing of long 

 hairs, in its larger size, diflerent shape of the sternum, etc, 



DISCOPOMA, sp. 



One specimen from Flagstaff, July 4, with a species of Laslvs. It 

 is dark-colored, plainly longer than ))road, and with some short hairs 

 in front, 



EXPLANATION OF PLATE VII. 



Fu;. \. ProtolopJius tuberculatus, palpus of female. 



2. Marpma albopilosa, dorsal view, 



o. Marpissa albopilosa, vulva. 



4. Drassus colorad&isis, vulva. 



5. Oxyopes compada, palpus. 



6. Oxyopes compada, vuh'a. 



7. Prosthesima barberi, vulva of small specimen. 



8. Discopoma hirsuta, ventral view. 



9. Marpissa albopilosa, leg I. 



10. Trochosa parva, vulva. 



11. Prosthesima barberi, vulva of lui'L^e specimen. 



