NOTES ON SPIDEES 447 



Leptyphantes angulatus Cb. Northumberland can no 

 longer boast a monopoly of this spider. Dr. Jackson very- 

 kindly let me see an adult female, taken by him on Bow 

 Fell, Cumberland, in 1903, which is certainly of this 

 species. 



*Porrhomma errans Bl. From time to time adult males 

 have occurred in my garden at Ninebanks, but by an 

 oversight the species has not hitherto been added to the 

 Northumberland list. 



Hilaira pervicax Hull. The first genuine female of tliis 

 species was taken in October, 1908. Early in November 

 males and females were found together in considerable 

 numbers, finally establishing the identity of the female. 

 A month later the males were greatly diminished in 

 number, the females as numerous as before. Figures 

 and descriptions of the latter sex are given below. 



Hilaira uncata Cb. Much less common than H. excisa 

 in Allendale, and affecting less sheltered situations. 



Centromerus arcanus Cb. Abundant under junipers at 

 Carshield in West Allen, and ascending to the top of 

 Killhope. 



*Centromerus probabilis Cb. Under this name the 

 Rev. O. Pickard-Cambridge figures and describes (Proc. 

 Dorset N. H. and A. F. Club, vol. xxix., p. 190) a 

 female spider which I sent to him early in 1907. It was 

 found among stones and moss on a " dead-heap " adjoin- 

 ing the garden at Ninebanks Vicarage, where I have 

 searched diligently for further examples without success. 



Microneta beata Cb. Recognized as a distinct species so 

 recently as 1906, and yet by no means uncommon. It is 

 pretty frequent in my garden at Ninebanks and else- 

 where in West Allen. It has also been sent to me from 

 Cresswell and Greatham. 



Microneta cauta Cb. A spider which I take to be of this 

 species occurs pretty commonly in moss on the Allendale 



o 



