Io6 CHAPTER I 



XYSTlcus LABRADORENSis Keys, {deichmatini Sor., albidus Grese) 



N Fennoscand., N Russ., NW Sib. Alas.-Labr., S to Calif. & Color.; 



Greenl. 



Philodromidae 



FHILODROMUS CAESPiTicoLis Walck. (aureolus CI. in part, canadensis Em.) 



Brit. Is!., Eur. (widely), Cauc, Sib. E N U.S.A. & Can. (widely), 

 at least to Yenisei. 



PHILODROMUS DISPAR Walclc. 



Brit. Isl., Eur. (widely), Cauc. f Wash. 



PHILODROMUS RUFUS Walck. (pictus Em.) 



Brit. Isl., Eur. (except the north), N. Alas.-Nfld., U.S.A. (widely). 



Afr., W Sib.; Japan. 



THANATUS COLORADENSIS Keys, {alpinus Kulcz.) 

 C Eur. Rocky Mts. of U.S.A. & Can. 



THANATUS FORMiciNUS CI. {canadensis Gertsch) 



Brit. Isl., Eur. (generally), N. Afr., Sib. Can. & N U.S.A. (widely), Nfld. 

 E to Kamch. 



THANATUS STRIATUS C. L. Koch {zvalteri Gertsch) 

 Brit. Isl., Eur. (except the east). Alas., Idah.-Utah., NE U.S.A. 



TiBELLUS MARiTiMus Menge 



Brit. Isl., Eur. (widely), N. Afr., Sib. Alas.-Nfld., U.S.A. (widely). 

 E to Kamch. 



TIBELLUS OBLONGUS Walck. (parallelus Sim.) 



Brit. Isl., Eur. (generally), N. Afr., Alas.-E Can., U.S.A. (widely). 



Cauc, Sib. E to Kamch. 



Salticidae 



HASARIUS ADANSONI Aud. 



Cosmopolitan in warm regions. 



t Brit. Isl., Finl., France, S Eur. (hot- f U.S.A. N to Wise. & New York, 

 houses). 



