502 



WALCKENAERA PRATENSIS. 



Walckenaera pratensis, Blackw., I.e., p. 306, pi. xxi., fig. 222. 

 Length of the female £th of an inch. Male rather smaller. 

 Cephalo-thorax dark reddish-brown ; upper part of the caput 

 of the male slightly raised, with a transverse groove just in front 

 of the hind-central pair of eyes, joining in with a deep longitu- 

 dinal indentation behind each lateral pair ; height of the clypeus, 

 which is rather full and prominent, equal to half that of facial 

 space. 



Eyes small. Thoso of the hind-central pair rather more than 

 a diameter apart, and each is removed from the hind-lateral ey e 

 on its side by an interval equal to that which separates each 

 fore-central eye from the fore-lateral on its side. There is a 

 distinct, but slight interval between the eyes of each of the 

 lateral, and fore-central pairs respectively. 



Legs moderately long, rather slender, and of a reddish orange 

 colour. 



Palpi similar in colour to the legs ; radial joint much stronger 

 than the cubital, being considerably expanded all round at its 

 fore extremity, and furnished with numerous coarse hairs. 

 Digital joint large, dark brown ; palpal organs complex, with 

 a strong black spine curved in a circular form at their extremity, 

 rather on the outer side, and forming a large, conspicuous coil, 

 within the curvature of which is a prominent, slightly curved, 

 pointed spine. 

 Abdomen rather large, glossy black. 

 The sexes are similar in colours. 



Found among grass in meadows on the banks of the Conway, 

 near Llanrwst, in the month of April, 1860. 



WALCKENAEBA MEADII. 



Walokenaera meadii, Camlr., Trans. Linn. Soc. xxvii., p. 450, 

 pi. lvii., No. 36. 

 Length of the male 1^- lines. 

 Cephalo-thorax glossy black-brown ; upper part of the caput 



