THE SPIDERS OF THE TYNE VALLEY. 383 



Tmeticus firmus (Camb.). Females of this species were 

 found by Mr. Falconer at Huddersfield, and by myself at 

 Hexham early in 1903. In the autumn of the same and 

 the succeeding year I succeeded in finding the adult 

 males. These are mature in October, appear to have a 

 very short season, and are much rarer than the females. 

 Both sexes are found among moss in woods, especially 

 where there is a thick undergrowth of heather, as in 

 Dipton and the Swallowship woods near Hexham. 

 T. firmus (Camb.) is described by Rev. O. P. Cambridge 

 in Proc. Dors. Field Club, vol. xxvi., 1905. Since this 

 paper has been in the press both sexes have occurred in 

 Delamere Forest in Cheshire. 



Tmeticus prudens (Camb.). Single females were taken on 

 Blanchland Common in July and February respectively. 

 This spider prefers either a maritime or a subalpine 

 district. In Lancashire, Dorset, and the South of France 

 (the only Continental record), it inhabits the former kind 

 of locality. It has also been found on the Mourne 

 Mountains and McGillicuddy's Reeks in Ireland, as well 

 as on the Grampians, Pentlands, Cheviots, Cumbrian, 

 Pennine, Cambrian, and Glamorganshire mountains in 

 Britain ; also on the summit of Snaefell, Isle of Man. 

 On several of these it attains an altitude of over 3,000 

 feet. Both sexes are adult in October, whilst odd females 

 may be obtained throughout the year. 



Tmeticus arcanus (Camb.). An example of what is 

 supposed to be the female of this species occurred near 

 Haltwhistle in October. It is figured as such by 

 Kulczynski (Aran. Hung.). Males sometimes accom- 

 panied by this female have occurred on the Cheviots, 

 Cumbrian mountains, Pennines, and the mountains of 

 Glamorgan. They reach an altitude of 3,000 feet, but 

 are sometimes found at lower levels, as in the present 

 case and at Penrith. Abroad it is only recorded for 

 France (where it is rare) and Hungary. 



