ON SOME NEW AND RARE BRITISH ARACHNIDA. 75 



Family THERIDIID.E. 



Theridion impressum, L. Koch. 



A male and females in the adult state, Bloxworth Heath, 

 Dr. A. R. Jackson, June 30, 1905. This is only the third 

 recorded occurrence of this spider as a British species. 

 In June, 1904, it was found by Dr. Jackson at Warm well 

 (Proc. Dors. N.H. and A.F. Club, Vol. XXVI., p. 40). It 

 is closely allied to the common Theridion sisyphium, 

 Clerck, and has probably been overlooked on that account, 

 especially as it closely resembles at first sight, pale or 

 washed out examples of that usually handsome spider. 



Phyllonethis lepida, Walck. 



An adult female from the Island of St. Kilda, Mr. James 

 Waterston, of Edinburgh, 1905. 



Pholeomma gibbum, Westr. 



Adult males of this very distinct little species were 

 received from Mr. W. Ruskin Butterfield, Curator of the 

 Hastings Museum of Natural History. 



Crustulina stieta, Cambr. 



Adult females, Studland, Dr. A. R. Jackson, July 2, 

 1905. 



Laseola dissimilis, Cambr. Fig. i. 



An adult female, Portland, Dr. A. R. Jackson, June, 1905. 

 The male of this species was described in 1905 (Proc. Dors. 

 N.H. and A. Field Club, Vol. XXVL, p. 58, PL A, Figs. 6, 

 7, 8), as new to science. The present record is the first of 

 the female of this species. (See postea, p. 84.) 



Linyphia furtiva, Cambr. 



Numerous examples of both sexes in the adult state, 

 Bloxworth Heath, Dr. A. R. Jackson, June 30, 1905. 



