314 F. P. SMITH ON THE SPIDERS OF THE DIPZOCEl'ffALUS GROUP, 



Cnephalocotes curtus, (Sim.), 1882. 



1882. Erigone curt"*, Sim., Bull. S02. Zool. France. 

 1884. Ca> • jJxdocotes cartas, Sim., Ar. de France. 

 1900. „ „ Cambr., List fir. Ir. Spid. 



Cnephalocotes pusillus, Menge, 1869.* 



1869. Microneta pusilla, Menge, Preuss. Sj>ia. 



1 B72. Eriyone sila, Cambr., Proc. Zool. Soc. 



1884. C nep)halocotes pusillus, Sim., Ar. de France. 



1894. ,, silas, Kulcz., Ar. Jiang. 



1900. ,, jjusillus, Cambr., List fir. Ir. .Spid. 



Cnephalocotes ambiguus, Cambr., 1905. 

 1905. Cnephalocotes ambiguus, Cambr., Proc. Dors. F. Club. 



Genus Eusticothrix, Dahl, 1886. 



1861. Erigone, Westr., Ar. Saec. (ad partem). 

 1804. Walckenaera, Bl., Spid. G. fi. I. (ad partem). 

 1870-3. Erigone, Thor., Pern, on Syn. (ad partem). 

 1879-81. Walckenaera, Cambr., Spid. Dorset (ad partem). 



1883. Lophocarenum, Bertkau, Spin. Rhebip. (ad partem). 



1884. Cnephalocotes, Sim., Ar. de France (ad partem). 

 1886. Eusticothrix, Dahl, Monog. Frig, (ad partem). 

 1894. Xematogmus, Kulcz., Ar. Hang, (ad partem). 



1900. Cnephalocotes, Cambr., List fir. Ir. Spid. (ad partem). 

 Type: E. obscurus, (Bl.). 



Eusticothrix, Dahl, originally included two species — E. obscurus, 

 (Bl.), and E. sanguinolentus, (Walck.). The former must be the 

 type species, as E. sanguinolentus, (Walck.), is the type of 

 Xeaiatogmas, Sim., 1884. Most modern authors have included 

 E. obscurus, (Bl.), in the genus Cnephalocotes, whilst several have 

 placed it with X. sanguinolentus, (Walck.), adopting the generic 

 name Xematogmus and sinking Eusticothrix as a synonym. 

 Although E. obscurus has affinities with both Cnephalocotes and 

 Nematogmus, it possesses characteristics which, to my mind, 

 justify its separation ; and, this being so, Eusticothrix will, of 

 course, be the correct title for the genus. 



Notwithstanding some slight discrepancies in the descriptions. I believe 

 Microneta pusilla, Menge, and Erigone sila, Cambr., to be identical. 



