128 Mr. Blackwall's Catalogue of Spiders 



Caves, cellars, overhanging banks and other obscure places constitute the 

 principal haunts of this spider in Denbighshire and Caernarvonshire. In 

 autumn the female fabricates a large oviform cocoon of white silk, of so deli- 

 cate a texture, that the eggs, connected together by fine silken lines in a glo- 

 bular mass measuring ^th of an inch in diameter, may be distinctly seen within 

 it. Its transverse axis measures about Yoths and its conjugate axis i^ths 

 of an inch, and it is generally attached by numerous lines, forming a short 

 pedicle at one extremity, to the vaults and walls of caves, cellars, &c. The 

 eggs, which are yellow and spherical, are between 400 and .500 in number. 



40. Epeira antriada. 



Epeira antriada. Walck. Tabl. des Aran. p. 62. 



Epeira antriada is common in obscure, damp situations n the north of 

 England and Wales Like Epeira inclinata, it generally spins its net in an 

 inclined position, leaving an open circular space at the centre, which it fre- 

 quently occupies when watching for its prey ; from this station it drops quickly 

 to the ground on being disturbed, regaining it, when the danger is past, by 

 means of a line drawn from the spinners in its descent. It has the habit of 

 extending the first and second pairs of legs in a line with the body in the man- 

 ner of Tetragnatha extensa. 



Tribe Senoculina. 



Family Dvsderid^. 



Genus Dysdera, Latr. 



41. Dysdera erythrina. 



Dysdera erythrina. Walck. Hist. Nat. des Insect. Apt. t. i. p. 261. Latr. Ge- 

 nera Crust, et Insect, t. i. p. 90. Koch, Die Arachn. b. v. p. 76. tab. clxv. 

 fig. 389. 



Specimens of this spider have been captured in central parts of the town of 

 Manchester, and in the summer of 1835, R. Potter, Esq., sent me an adult fe- 

 male from Cambridge. 



