Falconey : The Spiders of Wicken, Cambridge. 317 



the fen. Proc. Dorset F. Club., Vol. XII, p. 97, one female, 

 Mr. F. O. P. Cambridge, 1889 ; Vol. XIV, 1893, p. 161, several 

 adult males, Mr. C. Warburton, July, 1892 ; Vol. XXIII, 1902, 

 one male, Mr. H. Donisthorpe, September 1900. It occurred 

 numerously, spun up in the heads of Ariindo phragmitis. A.R.J. 

 more occasionally at large amongst vegetation on the ground. 

 W.F. A very rare British spider, which has been met with 

 also at Southport. 



Neon valenhilus sp. no v. figs. 9, 10, 11, 12. Numbers of 

 adults of both sexes of this interesting little jumping spider 

 were met with amongst and between the tufts of grass and sedge 

 at the top end of the fen, more particularly on the right of the 

 Drove, and less plentifully in the heaps of cut herbage. When 

 alive it appeared purplish black in colour, which under micro- 

 scopical examination by reflected light resolved itself into 

 iridescent tints. This feature which was constant in the males 

 was much less noticeable in some of the females. In the course 

 of two or three weeks immersion in spirit, the iridescent effects 

 gradually fade away but afterwards faintly return when the 

 specimen is allowed to dry. Examples were subsequently 

 submitted to the Rev. O. Pickard Cambridge and Mons. E. 

 Simon. The latter stated it to be Neon reticitlatus Bl. forma 

 ohscura, common in France. I can find no mention of this 

 variety in print and I have seen no French specimen of it, 

 but the Wicken examples, at all events, possess characters 

 which justify their being regarded as quite distinct from the 

 spider above-named. I therefore describe and figure it as a 

 sp. nov. postea p. 321. 



Euophrys frontalis Walck. An adult male and several 

 immature females from various parts of the fen. 



Sitticus cariciis Westr. One female adult and several 

 immature from the fen. A.R.J. A rare spider on record for 

 Dorset, Hants., Wilts., Herts., Norfolk, Suffolk, and Cumber- 

 land ; in most cases sub. Dendryphantes hastatus C. L. Koch. 



Evarcha arcuata Clerck. Proc. Dorset Field Club., Vol. 

 XXVI, 1905, p. 55, an adult male, Mr. F. P. Smith, sub. 

 Hasarius arcuatus Clerck. A rare British spider on record for 

 Dorset, Burnham Beeches, New Forest, Epping Forest, Wok- 

 ingham and Hastings. 



DESCRIPTION OF NEW SPECIES, Etc. 



Zora let if era sp. nov. Figs, i to 4. Adult males, 2.9 to 

 3.3 mm. ; adult females, 5.9 mm. 



Male. 

 PALPUS, figs I, 2, 3, pale yellow brown, with tarsal joint 

 only slightly duller, thinly covered with shortish adpressed 

 hairs. Femur with three dorsal spines in terminal half, 



lg!2 Oct. I. 



