150 



WALCKENAERA HUMILIS, 



"Walckenaera nraiLis, Blackw., Spid. Great Brit, and Irel., p. 

 307, pi. xxi., fig. 223. 



The adult male measures l-18th of an inch in length, and the 

 female about 1-1 6th. 



The wholecaput is rather raised, and considerably produced pro- 

 jecting forwards in a slightly upward, sloping direction, but hasno 

 distinct elevation ; it is broadly truncated at its extremity, and tho 

 eyes are placed in four pairs, occupying the whole area of the 

 truncation, which has also some short hairs upon it. The colour 

 of the cephalo-thorax and abdomen is brownish-black ; the logs 

 and palpi are red-brown. The cubital is longer than the radial 

 joint, which last is broad and produced over the base of the 

 digital joint, and ends in a bifid form, one limb of the bifid part 

 being curved and pointed, the other much larger, longer, and 

 prominent, with its termination a little enlargod and obtuse. The 

 palpal organs are highly developed and complex. 



This rare spider oocurs occasionally among moss in woods in 

 early summer at Bloxworth. It seems to be more frequent in the 

 North, where some years ago (at Edinburgh) I found it on several 

 occasions running in bright sunshine, on the pavement of the 

 City, in the months of June and July. It has also occurred in 

 Lancashire. 



WALCKENAERA AFFINITATA. 



Waiokenaera affinitata, Camlr., Trans. Linn. Soc. xxviii, p. 

 454, pi. 35, No. 30, and Zool. 18G3, p. 

 8,591. 



The length of the male is 1-1 5th of an inch. 



This spider is nearly allied to, but quite distinct from, 

 Walchenaera humilis, Blackw. The caput is more elevated, more 

 porrected, and less obtuse at its fore extromity, where it is also 

 truncated in a less horizontal line. The palpi and palpal organs 

 bear a general resemblance to those of Walchenaera humilis ; but 

 are rather more exaggerated in their development. 



