THE SPIDKRS OF THE TYNE VALLEY. 39 1 



Leptyphantes flavipes (Bl.). This species is exceedingly 

 like the last, and is probably often confused with it. It 

 is very rare in Northumberland, but I took two males in 

 Dipton Wood in October. It is reported from Ireland, 

 and several British localities from Dorset to Cumberland. 

 It is not rare in the classic Bere wood at Bloxworth, 

 where I have myself taken it. I believe it to be in Britain 

 a southern species largely replaced by Z, Mengh' (Ku\cz.) 

 in the North. Abroad it is reported from Sweden, France, 

 Switzerland, Germany, and Austria, but on the Continent 

 also it is probably often confused with its ally. 



Leptyphantes tenuis (BL). Very common everywhere at 

 home and abroad. Adults may be found throughout the 

 year. 



Leptyphantes tenebricola (Wid.). Occasional amongst 

 fallen leaves in woods, or amongst grass on banks. Adult 

 in May and June. This spider occurs in Dorset, Norfolk, 

 Cheshire, Lancashire, Yorkshire, Cumberland, and near 

 Edinburgh. Abroad it has been noted from Sweden, 

 Germany, Switzerland, Austria, Hungary, and the Tyrol. 

 It is not recorded from France or Ireland. On Helvellyn 

 it reaches an altitude of nearly 3,000 feet. It seems to be 

 a northern spider, which is enabled to spread itself south- 

 ward along mountain ranges, but which does not thrive 

 on the southern plains. 



Leptyphantes Blackwallii (Kulcz.). Very common 

 everywhere, and at all seasons. It is abundant on the 

 summits of Scafell Pike and Helvellyn, and occurs on 

 that of Snowdon. It occurs also in France, Spain, 

 Belgium, and Sweden, but seems absent from Switzerland, 

 Germany, and Hungary. 



Leptyphantes cristatus (Menge). Abundant in some 

 years amongst moss and grass in swampy places. Adults 

 occur chiefly from autumn to spring. It is widely dis- 

 tributed in Britain (Dorset to Inverness), occurs in 

 Ireland, and in most of the countries of Europe. 



