1 68 ON NEW AND RARE BRITISH SPIDERS. 



The eyes are rather widely spread ; those of the posterior 

 row are equally separated by nearly about a diameter's interval 

 between them, and are in a moderately curved line, the convexity 

 of which is directed backwards. The anterior row is only a little 

 shorter than the posterior, and has a still slighter curve in the 

 opposite direction. The four central eyes form very nearly a 

 square whose anterior side is shortest. 



Legs short, robust ; furnished with fine hairs, and a very few 

 solitary bristles. Colour yellow tinged with orange. 



Sternum rather longer than broad, obtuse at its hinder ex- 

 tremity. 



Abdomen large, round, oval ; projecting well over the hinder part 

 of the thorax ; colour black, clothed very thinly with fine short 

 hairs. Genital process of remarkably characteristic form. A 

 description of the male is given Proc. Dors. A.F. Club (Supra 

 cit.). The sexes are of the same colour and general appearance. 

 The female now described is new to science. 



Adults of both sexes were found on the summit of Scafell, 

 Cumberland, by Dr. A. R. Jackson in 1902. 



Lycosa decipiens, L. Koch. Fig. u. 



Lycosa decipiens, L. Koch. Jahrbuche der K. K. Gelehrten 

 Gesellschaft in Krakaw, 1870, p. 33. 



Adult female, length 2|rds lines. 



This spider might be easily mistaken for a small example of 

 Lycosa arnentata, Clk., but the black tips to the tarsi of all the legs, 

 as well as a totally dilTerent form of the genital aperture (which is 

 much like that of Lycosa monticola, C. L. Koch) will serve to dis- 

 tinguish it easily. The other parts of the legs are yellow, distinctly 

 annulated with black. The cephalothorax is deep brown with a 

 well-defined longitudinal central yellow band beginning in a point 

 behind the eyes, enlarging and then strongly constricted, after 

 which it tapers rather to the hinder extremity ; on each side is a 

 sub-marginal yellow broken stripe. Caput black-brown. The 

 abdomen was dark brown, the spider having deposited its eggs ; 



