NOETHTJMBERLAND AND DUEHA5I. 91 



Plaesiocraerus alpinus, (Cb.). 



Erigone alpina, Cambridge. Proceedings of Zool. See. (1872), 



p. 767, pi. LXVI., fig. 29. 

 Plaesiocraerus aljnnus, Simon. Arachnides de France, vol. V., 



part 3, p. 760. 

 D. Upper Teesdale, May, 1894, an adult male. A rare Spider. 



WIDERIA, Sim. 



Wideria antica, (Wid.). 



Walckenaera antica, Bl. Op. cit., p. 310, pi. XXI., fig. 215. 



N. Old Earle, "VVooler, Hedgehope, Langleyford. D. Upper 

 Teesdale, Durham. Adult in spring. 



Wideria nodosa, (Cb.). 



Walckenaera nodosa, Cambridge. Linn. Soc. Trans., vol. 



XXYIII., p. 550, pi. XLVI., fig, 21. 



N. Cold Martin Moss, an adult male. Another of Hardy's 

 additions to Science. 



DIPLOCEPHALUS, Bertk. 

 Diplocephalus cristatus, (Bl.). 



Walckenaera cristata, Bl. Op. cit., p. 309, pi. XXI., fig. 224. 



]^. Wooler, adult male. Common everywhere, spring and 

 summer, at the roots of grass, or running on walls and palings 

 in morning sunshine. 



Diplocephalus humilis, (BL). 



Walckenaera humilis, Bl. Op. cit., p. 307, pi. XXI., fig. 223. 



N. Holywell Dene. D. Durham. Under stones and at the 

 roots of grass, spring and autumn. 



Diplocephalus latifrons, (Cb.). 



Walckenaera latifrons, Cambridge. Linn. Soc. Trans., vol. 

 XXYIIL, p. 453, pi. XXXV., fig. 31. 

 N. Cheviot Hill, an adult male. Bardon Mill, an adult male 

 in September. Adult in spring. 



