DESCRIPTION OF PLATE.

Fig. 1. Agroeca diversa, sp.n. female. 1. Abdomen. 2. Genital aperture. 3. Ditto, from another specimen.

4. Leptyphantes insignis, sp.n. male. 4. Profile. 5. Cephalo-
thorax. 6. Palpus.

7. Gongylidiellum incertum, sp.n. female. 7. Upper side.
Profile of cephalothorax. 9. Genital aperture.

19. Upper side of ditto.
ditto.

8.

18. Profile of cephalothorax. 20. Right palpus. 21. Left

10. Collinsia notabilis, sp.n. male. 10. Cephalothorax. 11. Profile of ditto. 12. Eyes from above and behind. 13. Palpus from outer side. 14. Ditto, showing form of digital joint of palpus. 15, 16. Radial joint of palpus, in two positions. 17. One of the falces showing the single tooth.

22. Calyptostoma Hardii, Cambr. 22. Showing mouth parts. 23. Ditto in profile. 24. Genital aperture. 25. Anal ditto.

On New and Rare British Arachnida

NOTED AND OBSERVED IN 1912.

By the Rev. O. PICKARD-CAMBRIDGE, M.A., F.R.S., &c.

With Plate.

THE past year (1912) has brought me a fair

number of additions to our British List of Spiders (Araneidea). I wish I could say that my own personal efforts had had a greater share in producing these results; but these have been made mainly possible by the continued kind help and exertions of my correspondents, both friends and relations. To all who have so contributed during the past year I am again now indebted, as well as to some others (and amongst these I must specially add the name of a valuable Dorset correspondent-Dr. Haines, of Winfrith), whose collections, though containing no novelties, yet by many rare and local forms bore testimony not only to their kindness to me but to their efforts to add to our knowledge of this comparatively neglected group of animals. The names of those who have added to our List species new to

science, or other species not previously known to the British Fauna, will be specially mentioned in the course of the following List; but I may here note the names of such species and that of their finders. The species considered to be new to science are nine.

Zora letifera (Falconer), found by Mr. W. Falconer and Dr. A. R. Jackson in Wicken Fen, Cambridgeshire; Agroeca diversa, Bloxworth Heath, taken by one of my sons (A. E. Ll. P.-C.); Leptyphantes insignis, also found (by A. E. Ll. P.-C.) in one of the Bloxworth Woods; Leptyphantes moratus (Hull), found by the Rev. J. E. Hull at Forres, N.B. ; Microneta (Agyneta) ramosa, Jackson, found by Dr. Jackson in the New Forest, and Delamere Forest, Cheshire; Gongylidiellum incertum, taken by Mr. Horace Donisthorpe at Nethy Bridge, Scotland; Collinsia notabilis, taken by Mr. J. Collins (University Museum, Oxford) at Tubney, Berkshire; Entelecara errata, found at Penrith, Cumberland, by Dr. Jackson; and Neon valentulus (Falconer), taken by Mr. Falconer and Dr. Jackson in Wicken Fen! Besides the above, a very distinct and interesting species, new to Britain, has been sent to me from Wicken Fen, by both Mr. Falconer and Dr. Jackson-Maso gallica (Simon). The above species are all noted and described more fully in the following List and Supplement, p. 130.

If any of our readers should wish for further information on the General Subject, reference may be made to the following publications, by the author :

66

Spiders of Dorset," published by the Dorset Natural History and Antiquarian Field Club, 1879-1881, and Supplemental Papers in most of the subsequent years to the present date.

"List of British and Irish Spiders" (Sime and Co., Dorchester, 1900).

"British Phalangidea or Harvest Men" (Dors. F. C. Proceedings, Vol. XI., 1890).

British Chernetidea or False Scorpions (1.c. Vol. XIII.,

1892).

Since the publication of my last report in Vol. XXXIII. of our Proceedings, or previously omitted, the following Papers on British Arachnida have appeared :—

"On Some Rare Arachnids captured during 1907," A. Randell Jackson, M.B., M.Sc., Transactions Nat. Hist. of Northumberland, Durham, and Newcastle-upon-Tyne, n.s. Vol. III., part I., pp. (sep. cop.) 1-30, pl. IV.

"On Some Rare Arachnids obtained during 1908," A. Randell Jackson, M.B., M.Sc., Trans. Nat. Hist. of Northumberland, Durham, and Newcastle-upon-Tyne, n.s. Vol. III., part 2, pp. (sep. cop.) 1-24, pl. X.

"On the British Spiders of the Genus Microneta," A. Randell Jackson, M.B.,. Sc., Trans. Nat. Hist. Northumberland, Durham, and Newcastle-upon-Tyne, n.s. Vol. IV., pp. 117-142, pl. VII., VIII. (a valuable and important paper which I have not yet been able to examine thoroughly).

"A New Spider-Leptyphantes moratus (n. sp.)," Rev. J. E. Hull, M. A., "Scottish Naturalist," February, 1912, pp. 40-42, with woodcut figs.

"Allendale Spiders," Rev. J. E. Hull, M.A., Trans. Nat. Hist. Soc. Northumberland, Durham, and Newcastleupon-Tyne, n.s. Vol. III., part I., pp. (sep. cop.) 1-8, pl. V. "Yorkshire Arachnida in 1911," William Falconer, Slaithwaite, near Huddersfield, "Naturalist," Feb. 1, 1912, pp. 52-54.

"Airedale and Wharfedale Area (Yorkshire), W. P. Winter, "Naturalist," February 1, 1912, p. 54 (notes some additions to a former list, of 29 spiders and 1 PseudoScorpion).

"The Spiders of Wicken, Cambridge," William Falconer, "Naturalist," October, 1912, pp. 310-324, pl. XV. (Contains a list of species, and descriptions of two new to science and one new to Great Britain.)

"Chernes cyrneus in Nottinghamshire, a recent addition to the known False Scorpions of Britain," H. Wallis Kew. 54th Report and Transactions of the Nottingham Naturalists` Society for 1905-1906, pp. 41-46, pl. V.