384 THE SPIDERS OF THE TYNE VALLEY. 



Tmeticus silvaticus (BL). Frequent amongst moss, grass, 

 and fallen leaves in woods. Adult from autumn to spring. 

 It occurs freely in most British localities from Dorset to 

 Edinburgh, and has occurred (once) in the West of 

 Ireland. Of wide Continental distribution. 



Tmeticus expertus (Camb.). An inhabitant of marshes, 

 where adults may be found throughout the year. Its 

 chief season, however, is in autumn. It ranges from 

 Dorset to Fife in Britain, and has occurred in the North 

 of Ireland. Abroad it is reported from Norway, France, 

 Switzerland, Germany, and Hungary. 



Tmeticus bicolor (BL). Abundant everywhere in autumn, 

 when it becomes mature. Females may, however, be 

 found at any time. Widely distributed in Britain and 

 Ireland, but in both islands commonest in the north. It 

 also occurs in several Continental countries. 



Tmeticus concinnus (Thor.). Probably a variety of the 

 last, which it resembles in structure and habits. Both 

 species reach an altitude of over 3,000 feet on Scafell Pike 

 and on Snowdon, but at such an elevation the present one 

 is by far the more common. 



Porrhomma pygmaeum (BL). Abundant in Tynedale in 

 marshes, woods, fields, and other situations. Widely 

 distributed in Britain, Ireland, and on the Continent. 



Porrhomma oblongum (Camb.). Mr. Cambridge has so 

 named a small pale Porrhomma which occurs in woods 

 amongst moss and fallen leaves. The same spider occurs 

 in Yorkshire and Staffordshire in similar situations, 

 and attains an altitude of 2,500 feet in Cumberland 

 and 2,000 feet in the Isle of Man. Apparently, however, 

 it is not identical with P, oblo7igiim (Camb.-F. O. P. 

 Camb.) described and figured in Ann. and Mag. Nat. 

 Hist., vol. xiii., 1894. I possess a gynandrous specimen 

 taken at Hexham. It has one male palpus, one female 

 palpus, and a distorted epigyne. 



