1913.] NATURAL SCIENCES OF PHILADELPHIA. 179 



Xysticus variabilis Keys. Fig. 6. 



One female, a small species, which resembles a young stomachosus. 

 Synema nigromaculata Keys. 



This is our *S. parvula; the apical dark mark very plain, but not 

 distinct on the venter nor around the spinnerets. 



S. parvula of Keyserling's collection has the white band on base of 

 abdomen more distinct, and the dark band at apex goes down on 

 venter and forms a ring around the spinnerets. No difference in 

 .structure as far as I can see. 



Misumena spinosa Keys. Fig. 2. 



Very similar to M. asperata. 



Misumena georgiana Keys. Fig. 16. 



The cephalothorax shows a white X-mark very distinctly; the 

 femora are rather short. 

 Tmarus griseus Keys. 



Is a female lacking one moult of maturity, the femora somewhat 

 marmorate. 

 Tmarus floridensis Keys. 



Appears to be T. griseus, a mature female, but legs all pale. 



Ebo oblonga Simon. Fig. 4. 



Femur II not as long as the abdomen, tibia II as long as femur; 

 cephalothorax white, brown on the sides, but the margins pale. 

 Two females and a male, none Cjuite mature. 

 Philodromus praelustris Keys. Fig. l. 



The female is immature; the male is figured. 



Philodromus marxi Keys. Fig. 17. 



The cephalothorax very broad; it is close to P. ornatus and perhaps 

 the same; the Wisconsin specimen seems surely P. ornatus, but the 

 others are probably an allied species. 



Philodromus satullus Keys. Fig. 5. 



A small, even graj' species; legs III and IV with a dark line along 

 lower outer side on femur, tibia, and patella, most distinct on the 

 latter; similar line, but fainter, on the lower posterior side of leg II. 



Philodromus expositus Keys. Fig. 12. 



All femora clotted below as in figure; the cephalothorax a uniform 

 grayish-brown; and so probably not P. signatus Blackwall. 

 liinyphia galbea Keys. Plate XII, figs. 28, 31. 



Looks like a large Bathyphantes, and the vulva is on the same plan. 



