Page:VCH Bedfordshire 1.djvu/130

 A HISTORY OF BEDFORDSHIRE Abundant, forming large sheet-like webs on the herbage, with a funnel-shaped tubular retreat. 15. Agelena labyrinth'ica (Clerck) Woburn Abbey (Lord Tavistock) ; Luton (F.P.S.) ARGIOPID/E The spiders included in this family have eight eyes, situated in two rows, the lateral eyes of both rows being usually adjacent, if not in actual contact, while the central eyes form a quadrangle. The tarsal claws are three, often with other supernumerary claws. The web is either an orbicular snare, as in the case of the ' common garden spider,' or consists of a sheet of webbing, beneath which the spider hangs and captures its prey as it falls upon the sheet. This immense family includes those usually separated under the names Epeiridte and Linyphada. Aranem diadematus, Clerck 16. Meta segmentata (Clerck) Woburn Abbey (Lord Tavistock) ; Luton (F.P.S.) 17. Meta meriance (Scopoli) Woburn Abbey (Lord Tavistock) 18. Tetragnatha externa (Linnaeus) Woburn Abbey (Lord Tavistock) 19. Pacbygnatha clerckii, Sundevall Luton (F.P.S.) 20. Cyclosa conka (Pallas) Woburn Abbey (Lord Tavistock) 21. Zil/a x - notata (Clerck) Woburn Abbey (Lord Tavistock) 22. Aranem cucurbitinus, Clerck Woburn Abbey (Lord Tavistock) ; Luton (F.P.S.) 23- Woburn Abbey (Lord Tavistock) ; (F.P.S.) and Leighton Buzzard. 24. Aranem umbraticus, Clerck Woburn Abbey (Lord Tavistock) 25. Linypbia triangularis (Clerck) Luton (F.P.S.) 26. Stemonypbantes lineatm (Linnaeus) Luton (F.P.S.) 27. Leptbyphantes minutus (Blackwall) Luton (F.P.S.) 28. Centromesm sy/vaticus (Blackwall) Luton (F.P.S.) 29. Kulczynskiellum fmcum (Blackwall) Luton (F.P.S.) Lui THERIDIIDiE The members of this family have eight eyes, situated very much like those of the Argio- pida ; but the mandibles are usually weak, the maxilla; are inclined over the labium, and the posterior legs have a comb of stiff curved spines beneath the tarsi. The web consists of a tangle of crossing lines, and the spider often constructs a tent-like retreat wherein the egg-sac is hung up. The tarsal claws are three in number. 30. Theridion tepidariorum, C. L. Koch 32. Theridion lineatum (Clerck) Woburn Abbey (Lord Tavistock) Luton (F.P.S.) 31. Theridion denticulatum (Walckenaer) 33. Steatoda bipunctata (Linnaus) Luton (F.P.S.) Woburn Abbey (Lord Tavistock) DICTYNIDiE The spiders belonging to this family possess three tarsal claws, and the eyes, eight in number, situated in two transverse rows, the laterals being in contact. The cribellum (or extra pair of spinning organs) and the calamistrum (a row of curving bristles on the protarsi of the fourth pair of legs) are present in all members of the family. They construct a tubular retreat with an outer sheet of webbing, which is covered with a flocculent silk made with the calamistrum from threads furnished by the cribellum. 34. Amaurobius simi/is (Blackwall) Luton (F.P.S.) Common. Known also under the name Ciniflo. 35. Amaurobius ferox (Walckenaer) Woburn Abbey (Lord Tavistock) Common. Known also under the name Ciniflo, 90