A HISTORY OF HERTFORDSHIRE 



ARANE^E 



ARACHNOMORPH& 



DYSDERID.E 



Spiders with six eyes and two pairs of stigmatic openings, situated close together on the 

 genital rima ; the anterior pair communicating with lung books, the posterior with tracheal 

 tubes. Tarsal claws, two in Dysdera, three in Harpactes and Segestria. 



1. Dysdera cambridgii, Thorell. 



Hoddesdon (F. M. C.). 



Not uncommon under stones and bark of 

 trees, where it lurks within a tubular retreat. 

 The spider is easily recognizable by its elongate 

 form, orange legs, dark mahogany carapace 

 and pale clay-yellow abdomen. The palpal 

 bulb of the male has no cross-piece at the 

 apex. The spider is also known as D. 

 erythryna, Blackwall. 



2. Dysdera crocota, C. L. Koch. 



Hoddesdon (F. M. C.). 



Larger than the last species, with a deep 

 orange-pink carapace, orange legs, and abdo- 

 men with a delicate rosy-pink flush. The 

 palpal bulb of the male has a cross-piece at 

 the apex. This spider is also known as D. 

 rubicunda, Blackwall. 



DRASSID^E 



Spiders with eight eyes, situated in two transverse rows. The tracheal openings lie just 

 in front of the spinners. The tarsal claws are two in number, the anterior pair of spinners 

 are set wide apart at the base, and the maxillae are more or less impressed across the middle. 



3. Harpactes hombergii (Scopoli). 



Hoddesdon (F. M. C.). 



Rare under bark of trees, and recognizable 

 by its linear ant-like form, black carapace, 

 and pale clay-yellow abdomen and three tar- 

 sal claws. 



4. Segestria senoculata (Linnaeus). 



Hoddesdon (F. M. C.). 



Not common ; under bark of trees, in the 

 crevices of loose stone walls and amongst 

 detached rocks. Recognizable by its linear 

 form and the black diamond-shaped blotches 

 on the dorsal surface of the abdomen. 



5. Oonops pulcher, Templeton. 



Hoddesdon (F. M. C.). 

 Rare ; a very small linear brick-red spider. 



6. Drassodes lapidosus (Walckenaer). 

 Hoddesdon (F. M. C.). 



Very common under stones. Also known 

 as Drassus lapldicolens. 



7. Scotophtsus blackwallii (Thorell). 



Hoddesdon (F. M. C.). 



A dark elongate mouse-grey spider, often 

 found wandering about the walls of dwelling 

 and outhouses at night. Known also as 

 Drassus sericeus, Blackwall. 



CLUBIONID^: 



Spiders with eight eyes, situated in two transverse rows. The tracheal openings lie 

 immediately in front of the spinners. The tarsal claws are two in number, but the anterior 

 pair of spinners are set close together at the base ; the maxillae are convex and not impressed 

 across the middle. 



8. Micaria pulicaria (Sundevall). 



Hoddesdon (F. M. C.). 



A small dark spider, iridescent and shining, 

 with a white cincture round the middle of 

 the anterior half of the abdomen. Known 

 also as Drassus nitens, Blackwall. 



9. Phrurolithus festivus, C. L. Koch. 



Hoddesdon (F. M. C.). 



Also known as Drassus propinquus. Black- 

 wall. 



10. Zora spinimana (Sundevall). 

 Hoddesdon (F. M. C.). 



1 1 . Clubiona stagnatilis, Kulczynski. 

 Lea Valley (F. M. C.). 



Known also as C. kolosericea, Blackwall. 



12. Clubiona terrestrij, Westring. 

 Hoddesdon (F. M. C.). 



13. Clubiona reclusa, O. P.-Cambridge. 

 Hoddesdon (F. M. C.). 



14. Clubiona lutescens, Westring. 

 Hoddesdon (F. M. C.). 



15. Clubiona pallidula (Clerck). 

 Hoddesdon (F. M. C.). 



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