586 PROCEEDINGS OF THE NATIONAL MUSEUM v<u..xxiii. 



that this is the same as the Ocypete testacea of Koch/ in which case 

 Koch's name will have priority, 



SELENOPS, species. 



A young specimen from Madera Canyon. Santa Rita Mountains, 

 possibly belonging to S. tugrouKiculatuH Keyserling. 



Family THOMISID^. 



MISUMENA PALLIDA Cambridge. 



A few females from Santa Rita Mountains, June, and Oracle, July, 

 pro ba 1)1}' belong to this species. 



MISUMENA FIDELIS Banks. 



A female from Catalina Springs, April, appears to belong here. 



CORIARACHNE VERSICOLOR Keyserling. 



Females from Catalina Springs, May, and Madera Canyon, Santa 

 Rita Mountains, June. 



PHILODROMUS MARGINELLUS, new species. 



Length of female, 15 mm. 



Cephalothorax pale dirty whitish, a purer white V-mark and a 

 median anterior line, sides evenly and quite broadl}^ margined w ith 

 brown. Abdomen dirt}^ white above, brown on the anterior sides, 

 and on the posterior sides darker brown, sharply marked otf from the 

 pale above; on posterior median portion of dorsum is a double series 

 of dark marks, converging toward tip. Legs pale, darker at tips of 

 femora and on bases of anterior tibiw, elsewhere with a few scattered 

 brown dots. Sternum and venter white, the latter margined each 

 side with brown. Cephalothorax about as broad as long, a little 

 shorter than femur I; posterior median eyes slightly larger and farther 

 apart than anterior median eyes. Abdomen large, pointed behind; 

 the epigynum shows a subtriangular cavity, traversed by a median 

 septum, broader behind than in front. 



A female, Santa Rita Mountains, June. 



Tyjje.— Cat. No. 5429, U.S.N.M. 



PHILODROMUS AUREOLUS Walckenaer. 



One specimen from Oracle, July. 



PHILODROMUS, species. 



One female from Catalina Springs, May, of uncertain position, 

 quite large, pale, and dorsum marked with brown. 



iDie Arach., IV, 1838, p. 81, fig. 303. 



