A HISTORY OF SUSSEX 13. Agroeca brunnea (Blackwall) Hastings (F.P.S.) The egg-cocoon of this species is a familiar object to the field naturalist ; a white silken sac shaped like an inverted wine-glass and hung by the stem to the stalks of rushes, heather, etc. The spider subsequently covers the silk with a layer of mud. 13A. Agroeca striata, Kulczynski Shoreham (O.P.-C.) 14. Zora spinunana (Sundevall) Brighton Common everywhere amongst herbage. 15. C/ubiona phragmitis, C. L. Koch Hastings (F.P.S.) 16. Clubiona pallidula (Clerck) Hastings (F.P.S.) 17. Clubiona stagnati/is, Kulczynski Hastings (F.P.S.) 18. Clubiona rec/usa, O. P. -Cambridge Hastings (F.P.S.) 19. Clubiona terrestris, Westring Hastings (F.P.S.) 20. Clubiona compta, C. L. Koch Hastings (F.P.S.) 21. Chiracanthium erraticum (Walckenaer) Hastings (F.P.S.) Common on the roadsides among bramble leaves. This spider is also known as C. carnifex. 2 1 A. Micromata virescens (Clerck) Hastings (F.P.S.) ANYPHiENIDiE The spiders of this family resemble those of the Clubionida in most respects, except that the tracheal stigmatic openings beneath the abdomen are situated about midway between the genital rima and the spinners, and not as in the last family immediately in front of the spinners. One species only is indigenous to Great Britain, and is very common amongst the foliage of trees in May and June. 22. Anyphana accentuata (Walckenaer) Hastings (F.P.S.) THOMISID^ Spiders with eight eyes, situated in two transverse rows, two tarsal claws, and anterior spinners close together at their base. Maxillas not impressed. The crab-like shape and side- long movements of these spiders are the chief characteristic which enable them to be dis- tinguished from the more elongate Drassida and Clubionida. 23. Philodromus dispar, Walckenaer Hastings (F.P.S.) 24. Philodromus aureolus (Clerck) Brighton 25. Tibcllus oblongus (Walckenaer) Brighton Common amongst dry coarse grass on sand- hills and also amongst the rich vegetation in swamps, where the species is as a rule much larger. 26. Thanatus formicinus, C. L. Koch East Grinstead (Rev. T. R. Stebbing) A rare species, taken only in the New Forest previously. 27. Xysticus cristatus (Clerck) H.astings (F.P.S.) 28. Xysticus pini (Hahn) East Grinstead (F.P.S.) 29. Oxyptila praticola (C. L. Koch) Hastings (F.P.S.) 30. Oxyptila simplex, O. P.-Cambridge Hastings (F.P.S.) ATTID^ The spiders of this family may be recognized in a general way by their mode of pro- gression, consisting of a series of leaps, when alarmed. More particularly they may be known by the square shape of the cephalic region and the fact that the eyes are arranged in three rows of 4, 2, 2 ; the centrals of the anterior row being much the largest and usually iridescent. Otherwise these spiders are simply specialized Clubionids, with two tarsal claws and other minor characters possessed in common with members of this latter family. The commonest, 240
