SPIDERS 



ARACHNIDA 



Spickrs 



The following list of tiie spiders of the county of Durham is almost entirety due to the 

 researches of the Rev. J. E. Hull, of North SliieUis, who in 1896 published a 'Catalogue of the 

 Spiders (Arancidea) of Northumberland and Durham.' 2 Out of a total of about 534 species of 

 spiders recorded for Great Britain and Ireland only 1 1 2 species have been taken in the county of 

 Durham, while of the Pseudo-scorpiones and Opiliones there are none at all recorded, so far as I 

 can make out. 



There is no doubt, however, that the number of spiders would be much increased if a 

 diligent search were instituted, for there are plenty of species which one can be quite sure must 

 inhabit a district whose physical characters are of the kind furnished by this county. 



Of those recorded the following are worthy of special mention either on account of their 

 rarity or being of particular individual interest : O'dnops pulcher ; Cryphceca divena ; Cicurina 

 cinerea ; Aleta menardi ; Centromerus iylviitlcus ; Micryphantes cornigera ; Dicymb'tum tlbiale ; 

 and Euryopis hlackwaUii. 



ARANEiE 



ARACHNOMORPH^ 



DYSDERID^ 



Spiders with six eyes and two p.iir9 of stigmatic 2. Segestria semculata (Linnsus). 



openings, situated close together on the genital Durham ; Teesdale ; Ryhope (J. E. H.). 



riraa ; the anterior pair communicating with lung , ■ , r • 1 



books, the posterior with tracheal tubes. Tarsal . ^ot common ; under bark of trees, ,n the rre- 



claws, two in Dysdera, three in Harpactes and ^''^f °' 1°°^'= ^.'o"'^ walls, and amongst detached 



Sefestria rocks. Recognizable by its linear form and the 



black diamond-shaped blotches on the dorsal sur- 



I. HtJipac/es iombergii (ScopoW). face of the abdomen. 



Durham ; Kepier Wood and Pelaw Wood ; , _, , 



Teesdale ; Falcon Glints ; Harperley 3- Oomp! pulcher, Templeton. 

 (J. E. H.). Durham ; Pelaw Wood and Kepier Wood 



Rare under bark of trees, and recognizable by its U- '^- "■•) 



linear ant-like form, black carapace, and pale clay- Not common ; usually beaten from over-hanging 



yellow abdomen and three tarsal claws. grass on dry sunny banks. 



DRASSID^ 



Spiders with eight eyes, situated in two trans- 4. Drassodes lapidosus (Walckenaer). 

 verse rows. The tracheal openings lie just in front /i c u \ 



of the spinner?. The tarsal claws are two in Ryhope (J. t. H.). 



number, the anterior pair of spinners being set y^^y common under stones. Also known as 



wide apart at the base, and the maxillae are more Qrassus kpidkoUns. 

 or less impressed across the middle. 



CLUBIONID^ 



Spiders with eight eyes, situated in two trans- 6. Chbiona terrestiis, Westring. 

 verse rows. The tracheal openings lie immediately /t i? tj \ 



in front of the spinners. The tarsal claws are two Durham ; Ryhope {]. t. H.). 



in number, but the anterior pair of spinners are set ^^^ uncommon in the summer time, when it 



close together at the base ; the naaxills are convex ^^ ^^^^^ wandering about at night on the 



and not impressed across the middle. ^^f,^ ^j. ^^^^,0^%^^, palings, etc. The female may 



5. Zora spinimana (Sundevall). be found in a silken domicile with her cocoon 



Urpeth (J. E. H.). under or between the leaves of shrubs. Known 



Known also as Hecarge tpin'mana or maculate. also as C. amarantba. Black wall. 



I By the late F. O. Pickard-Cambridge. Revised and corrected by the Rev. O. Pickard-Cambridge, 

 Bloxworth, Dorict. 



« Natural Hi stoiy Transactions 0/ Northumberland, Durham, and Newcastk-upon-Tync, xiii. part 1. 



141 



