THE SPIDF.RS OF THK TVNF, VALLEY. 393 



Linyphia triangularis (Clerck). Very common on herbage 

 and low bushes. Adult in August, September, and 

 October. Widely distributed in Britain, Ireland, and 

 Europe ; occurring also in Siberia. 



Linyphia peltata (Wid.). Very abundant on bushes and 

 in the branches of trees. It generally lives higher up in 

 the latter than does L. triangularis (Clerck). Adult in 

 May, June, and July. Very widely distributed at home 

 and abroad. 



Linyphia pusilla (Sund.). Rare, but occasionally found 

 amongst grass in marshy places. Adult in June and 

 July. Holarctic. 



Linyphia hortensis (Sund.). Not rare in woods, where 

 it spins its snare amongst grass stems and low herbage. 

 Adult in May and June. It is most commonly met with 

 in winter, but is then, of course, immature. Widely dis- 

 tributed in Britain, Ireland, and on the Continent. 



Linyphia insignis (Bl.). Common in September and 

 October in its adult state. It is generally beaten from 

 trees and bushes in the woods. This is another northern 

 spider. It is of Holarctic range. Common in the North, 

 it is rare in the South, except in subalpine districts. It 

 occurs throughout Britain and Ireland, but is commonest 

 in the north of the former island. 



Drapetisca socialis (BL). Very abundant on the trunks 

 of various trees, spinning no true snares, but running 

 rapidly over the mossy or lichen-covered bark, with the 

 hues of which its sober colours harmonize. Adult in 

 September and October. Distribution Holarctic. 



Stemonyphantes lineatus (L.). Common everywhere, 

 and at all times of the year. Another Holarctic species. 



Bolyphantes luteolus (Bl.). Abundant in Tynedale from 

 the moors of Bellingham to the shores of Whitley Bay. 

 Adult in September and October. It seems rare in 

 Ireland, and is certainly rare in the South of England. 



