and Systematic Arrangement of British Spiders. 21 



Neriene errans is not uncommon among grass and on rails in 

 North Wales and in the south of Lancashire. 



129. Neriene sylvatica. 



Neriene sylvatica, Blackw. Linn. Trans, vol. xviii. p. 644. 



Adult males of this species were taken in February 1837 under 

 detached pieces of rock, slightly imbedded in earth, in woods 

 about Llanrwst. 



130. Neriene viaria. 



Neriene viaria, Blackw. Linn. Trans, vol. xviii. p. 645. 

 Argus viarius, Walck. Hist. Nat. des Insect. Apt. t. iv. p. 512. 



A male of this spider, which had the palpal organs perfectly 

 developed, was found running on a footpath at Oakland in Mav 

 1838. 



131. Neriene pulla. 



Neriene pulla, Blackw. Linn. Trans, vol. xviii. p. 646. 



Argus pullus, Walck. Hist. Nat. des Insect. Apt. t. iv. p. 512. 



Males of Neriene pulla, in a state of maturity, were captured 

 in June 1836 on rails near Llanrwst. 



132. Neriene gracilis. 



Neriene gracilis, Blackw. Linn. Trans, vol. xviii. p. 646. 

 Argus gracilis, Walck. Hist. Nat. des Insect. Apt. t. iv. p. 512. 



Both sexes of this species were taken on rails at Crumpsall 

 Hall, and at Capel Garmon, in the parish of Llanrwst, Denbigh- 

 shire, in the autumn of 1836. 



133. Neriene vagans. 

 Neriene vagans, Blackw. Research, in Zool. p. 374. 



This is an aeronautic spider, and is very common among the 

 grass of meadows and pastures in North Wales and in Lancashire. 



134. Neriene pygmaa. 



Neriene pygmcea, Blackw. Research, in Zool. p. 376. 



Neriene pygmcea is plentiful among the grass of old pastures 

 in Lancashire and North Wales, and may frequently be seen 

 running on rails and on footpaths. 



13o. Neriene lugubris. 



Neriene lugubris, Blackw. Research, in Zool. p. 380. 



In June 1834 I captured adult males of this species on iron 

 rails at Crumpsall Hall. 



