Requested reference
Millidge, A. F. (1986). A revision of the tracheal structures of the Linyphiidae. Bulletin of the British Arachnological Society 7: 57-61. 
-- Show included taxa
Millidge, A. F. (1986). A revision of the tracheal structures of the Linyphiidae. Bulletin of the British Arachnological Society 7: 57-61. -- Show included taxa