ID guides to difficult British spiders

In the UK spiders are one of the few invertebrate groups where the majority of the species can be identified with "relative" ease with only one or two reference books. However, there are a number of groups within the spiders where the species are very similar and difficult to distinguish. This section of the British Arachnology Society website includes PDF documents, produced by experts in arachnology, which aim to help all arachnologists to correctly identify the species with these groupings.
Author(s): 
BAS
Free: 
Yes
Available as: 
Online
PDF
Keywords: 
Porrhomma Tegenaria Zelotes Alopecosa Dysdera Clubiona Neon Tetragnatha Bathyphantes Entelecara