91 



from those of Thcridion rujolincatum. 'i'ho egg cocoon is round, 

 whito, and. may bo often found secured by silicon linos to the 

 under sideof a leaf, whero it is watchfully tended upon by the 

 female parent spider. 



Thcridion <pulehcllum is found in many localities, both in 

 Dorsetshire and throughout the South of England, as well as in 

 North Wales. 



TIIEUIDION BIMACULATUM. 



Aeanea bimaculata, Linn., Syst. Nat. Ed. 12, T. 2, p. 1033. 



Tiieridion Carolinum, Walck, Blac/av., Spid. Great Brit, and 

 Ii-oL, p. 192, pi. xiv, fig. 123. 



The length of the malo is l-12th of an inch, and that of the 

 female l-10th. 



The sexes of this spider differ exceedingly in form and colours. 

 The female may bo roadily distinguished by a broad, central, 

 tapering, longitudinal, well defined, yellow (or yellowish-white) 

 band on the upper side of its very globular abdomen, tho ground 

 colour of which is a bright brownish-red. Tho abdomen of 

 the male is far less round in form, being somewhat cylindrical, 

 and often constricted across the middle ; it is of a dark brownish- 

 red colour, with the two obscure yellowish spots, near each other in 

 in a transvere line, on tho foro-part of tho upper side. Tho 

 palpi are long, and are projected straightforwards as tho spidor 

 runs about. Tho digital jointaudpalpalorgansaro, comparatively, 

 of enormous sizo, and being held out in front of the spider as it 

 runs along, givo it a very singular appearance. Tho female 

 carrios her little round whito cocoon, full of eggs, suspended 

 beneath her by silken linos, and shows groat concern if it be taken 

 away from her, quickly getting possession of it again if she be 

 able. Thcridion bimaculatum is among our rarer Dorsetshire 

 spiders; but I have found it, not uufiepiontly, at Blox worth 

 among weeds and rank herbage in hedges, and also among 

 heather, as well as among strawberry plants while' gathering 



