354 THE SPIDERS OF THE TYNE VALLEY. 



Oxyptila praticola (Koch). I have occasionally found 

 adult females of this species among dead leaves, especially 

 the detritus of hawthorn or holly hedges. They may be 

 found at all seasons. In autumn and winter young males 

 often accompany them, but I have never found the adult 

 male in Tynedale. Rare in Ireland, and apparently not 

 on record for Scotland, this spider occurs in most of 

 the English counties whose spider fauna has been 

 investigated. Widely distributed abroad. 



Oxyptila flexa (Camb.). An adult male near Warden in 

 June. Also an adult female taken by Mr. Falconer at 

 Staward, near Allendale, in August of the same year. 

 This distinct spider has occurred in Dorset, Kent, 

 Sussex, Cambridge, Leicestershire, Yorkshire, Durham, 

 Cheshire, and Dublin. It is not recorded for Scotland, 

 and apparently is not recognized on the Continent. 



Philodromus aureolus (Clk.). Common on trees and 

 bushes of all kinds. It is adult in May and June, and 

 is widely distributed in the British Isles and on the 

 Continent. 



Philodromus cespiticollis (Walck.). This is even 

 commoner than the last spider, to which it is closely 

 related. The Continental authors regard them merely as 

 sub-species, and Kulczynski has described various inter- 

 mediate forms. These, however, do not occur in Britain, 

 where the two species are distinct enough. Both have a 

 very wide range, P. anreohis (Clk.) having been recorded 

 from North America, Kamtschatka, and China. 



Tibellus oblongus (Walck.). Occasional among long 

 grass and rushes in marshy places. Adult in early 

 summer. This spider is of very wide distribution. It 

 occurs in great abundance among the starr grass or 

 marram grass that grows on the sandhills of the south 

 and west coast. I have no doubt that in suitable places 

 it would be found on the Northumbrian shores. 



