A HISTORY OF DURHAM 



77. Gonatlum isahelRnum (C. L. Koch). 



Harperley ; Wolsingham ; Durham (J. E. H.) 

 Known also as Nerietie rubella, Blackwall. 



78. Dic^'phus conutus (Blackwall). 



Durham ; Upper Teesdale (J. E. H.). 

 Known also under Neriene. 

 ■ji). Hypomma bituberculatum (Blackwall). 



Durham ; Upper Teesdale ; Wolsingham 

 (J. E. H.). 

 Known also under Nerine. 



80. Dismodicus bifrons (Blackwall). 



Durham ; Upper Teesdale ; Wolsingham 

 U- E. H.) 

 Known also under IVakkenitra. 



81. Kult:zs>iskiel!um retuium (Westring). 



Durham (J. E. H.). 

 Known also under Neriine, and Erigone, also as 

 Neriene elevata, O.P.-Cambridge. 



82. Kulcyzymkiellum fuscum (Blackwall). 



Durham (J. E. H.). 

 Not common. September. 



83. CEdothorax tuberosui (Blackwall). 



Durham (J. E. H.). 

 Known also under Neriene. 



84. Blacktvallia acuminata, Blackwall. 



Durham ; Urpeth (J. E. H.). 

 Known also under the name IValckentgra. 



85. Dicymbium tibiale (Blackwall). 



Urpeth U- E. H.). 

 A rare spider. Adult males, August and Sep- 

 tember. 



86. Plaiiocritrus alpinus (O.P.-Cambridge). * 



Upper Teesdale (J. E. H.). 



87. Wideria antica (Wider). 



Durham ; Upper Teesdale (J. E. H.). 

 Not uncommon ; adult in spring. Known also 

 under Wakkenara. 



88. Diplocepkalus humilis (Blackwall). 



Durham (J. E. H.). 

 Under stones and at the roots of grass in spring 

 and autumn. 



89. Diplocepkalus picinus (Blackwall). 



Durham Q- E. H.). 

 Rare ; adult males in spring amongst grass. 



90. Pocadicnemis pumila (Blackwall). 



Durham ; Ryhope G- E. H.). 

 Rare ; among grass in spring and summer. 

 Known also under Walckenara. 



9 1 . Comicularia cuspidata (Blackwall). 



Durham ; Upper Teesdale (J. E. H.). 

 Not rare ; on grassy banks. Known also under 

 Wakkenitra. 



92. Comicularia unicornis (O.P.-Cambridge). 



Durham (J. E. H.). 

 Rare ; amongst grass in the spring. Known 

 also under Wakkena-ra. 



93. Troxochrus scabriculus (Westring). 



Durham (J. E. H.). 

 Rare. Known also under Erigone and as Wakk- 

 enitra aggeris, O. P. -Cambridge. 



94. Lophomma punctatum (Blackwall). 



Durham (J. E. H.). 

 Not common ; under stones, spring and autumn. 

 Known also under Wakkcna-ra. 



95. Peponocranium ludicrum (O.P.-Cambridge). 



Upper Teesdale (J. E. H.). 

 A single adult male in May at an altitude of 

 1,200 feet. Known also under Wakkentera. 



96. Microctenonyx subitancus (O.P.-Cambridge). 



Durham (J. E. H.). 

 A single adult male in June, among loose stones. 

 Known also under Wakkeneera and Tapinocyba. 



THERIDIIDiE 



The members of this family have eight eyes 

 situated very much like those o{ the y4rgyo/>iJre, but 

 the mandibles are usually weak, the maxillx are 

 inclined over the labium, and the posterior legs 

 have a comb of stiff curved serrated spines beneath 

 the tarsi. The web consists of a tangle of crossing 

 lines, and the spider often constructs a tent-like 

 retreat wherein the egg-sac is hung up. 



97. Theridion varians, Hahn. 



Durham ; Wolsingham ; Ryhope (J. E. H.). 

 A very much smaller species, varying consider- 

 ably in colour, found abunJ.mlly in greenhouses 

 and also amongst shrubs in the open garden. This 

 »pccic3 makes no tent-like retreat, but sits close to 



the one or more pale rounded egg-sacs usually spun 

 up against a beam or window-sill. 



98. Theridion dcnticulatum (Walckcnacr). 



Durham ; Wolsingham (J. E. H.). 

 Also a very small and abund.int species, occurring 

 on the outside of windows and outhouses and also 

 on walls and palings. It makes no tent-like retreat 

 and the habits are very similar to those of the last 

 species. Also taken on shrubs and tree trunks. 



99. Theridion sisyphium (Clerck). 



Durham ; Wolsingham ; Ryhope (J. E. H.). 



Very common on gorsc and holly bushes, where 



they construct a tent-like domicile and spin up 



' Thi» ipcciti hni been fxpungcil from the Brit. Liit (Proc. Don. Nai. Hiit., and A. V. Cluh, iiiii. p. 23, 1902). All 

 the eiimplei hitherto recorded ai P. /Il/'inui hare been a>cert.iincd to be Difhcrphnlui (Plaiiocraim) hilffiom,0. P.-Camb. j 

 and 1 feel no doubt but that the spider recorded here ii also of thil lalt ipecici, though 1 have not had an opportunity of 

 ciamining the •pccimen. O. rickard-Cambridgc, April I4lh, 1905. 



146 



