F. P. SMITH ON SOME BRITISH SPIDERS TAKEN IN 1908. 333 



Entelecara erythropus (Westr.), 1851. 



1851. Erigone erythropa, Westr., Goteb. Hand!. 

 18G2. Walckenaera boreal is, Canib., Zoologist. 

 1879. ,, erythropa, Camb., Spiel. Dorset. 



1906. Entelecara erythropus, F. P. S., Journ. Quekett Club. 



1907. „ „ F. P. S., Journ. Quekett Club. 



The epigynum of this species is illustrated (Figs. 12, 13), two 

 variations from recently killed specimens being shown. 



Entelecara trifrons (Camb.), 1863. 



1863. Walckenaera trifrons, Camb., Zoologist. 

 1879. ,, „ Camb., Spiel. Dorset. 



1906. Entelecara trifrons, F. P. S., Journ. Quekett Club. 



The epigynum of this species is figured on Plate 25, Fig. 1-4. 

 for comparison with the two foregoing. The , specimen from 

 which the drawing was made has been preserved for some years in 

 alcohol, and appears to be slightly shrunken. 



Troxochrus scabriculus (Westr.), 1851. 



1851. Erigone scabricula, Westr., Goteb. Handl. 

 1860. Walckenaera aggeris, Camb., Ann. Mag. X. 11. 



1864. „ „ Bl., Spiel. G. B. I. 



1871. „ cirrifrons, Camb., Trans. Linn. Soc. 



1879. ,, scabricuhi. ( lamb., Spid. Dorset. 



1881. ,, cirrifrons, Camb., Spid. Dorset. 



1906. Troxochrus scabriculus, F. P. S., Journ. Quekett Club. 

 1906. ,, cirrifrons, F. P. S., Journ. Quekett Club. 



This species absolutely swarmed during the winter under some 

 haystacks near Croydon. Extensive collections were made, and 

 the opportunity taken of comparing these specimens with others 

 from the north of England. The result of this examination has 

 been to convince me that, in spite of the fact that I have never 

 been able to find actual connecting links, the two male forms, 

 scabriculus and cirrifrons, ought to be regarded as dimorphic 

 modifications of one species rather than as specifically distinct. 

 In every collection sufficiently extensive to yield trustworthy 

 statistical data these two male forms occurred in fairly con- 

 stant proportions. The females taken with these were about 



