136 DR. A. RANDELL JACKSON ON THE 



A. decora Camb. occurs on the ground amongst moss and 

 grass. It is occasionally found in woods, but generally affects 

 more open places like fields and moors. It is adult in May 

 and June. I have received it from Dorset, Cheshire, Lanca- 

 shire, Yorkshire, Northumberland, and Ireland. 



Agyneta subtil is Camb. 



Neriene subtilis Camb., 1863. Zoologist, p. 8584. 

 Neriene anomala Camb., 1863. Zoologist, p. 8585. 

 Microneta subtilis Camb. List of British and Irish Spiders. 



(Plate VIII., figs. 4, 4a, 4b, 4c, 4d, 4e, 4f.) 



The types of this species, and all the other specimens Mr. 

 Pickard-Cambridge possessed under the above names, were 

 conspecific. Thus there is no doubt at all as to the nomen- 

 clature. 



A. sitbtilis is usually a yellowish-brown, rather stoutly built 

 beast. 



The lamella characteristica of the male palpus is very 

 distinctive and constant in shape. Anteriorly it looks some- 

 thing like a double-headed bird, while posteriorly it exhibits 

 the usual tapering tail. Near the middle of the upper border 

 is a tooth-like prominence arising from the inner surface of 

 the body. 



The tarsus of the palpus shows a high dorsal elevation, 

 higher than that of A. decora Camb., but lower than that of 

 A. conigera Camb. There is also a short knob-like process at 

 the inner side of the upper surface near the base. This is 

 usually too short to be seen from the outer side of the palpus, 

 as it is then concealed behind the convexity of the dorsum of 

 the tarsus. 



The female palpi are always tumid, but there is in this 

 species great variety in the amount of tumidity. Some speci- 

 mens in my possession measure *x8 mm. in the transverse 

 diameter of the tumid part, and in other cases the greatest 

 breadth is only half that. There are however very few forms 



