1 58 Proceedings of the Royal Irish Academ>/. 



I have never seen an Irish, specimen. Its occurrence in the north of 

 Ireland is remarkable, as in Great Britain it seems confined to the 

 south of England, while abroad it is a distinctly Mediterranean species, 

 inhabiting western and southern France, Spain, Italy, Greece, Madeira^ 

 north Africa, and Syria. 



TJieridioji vittatum, Koch. 



T.imlcMlum, Bl. (Spid. G. B. I.). 



Leinster, 



Several adults of both sexes, collected by l^x. D. W. Preeman in 

 county of Dublin, are the only Irish examples of this spider which I 

 have seen. In Great Britain it has been found in southern England, 

 north "Wales, and Cumberland, while it is distributed throughout 

 Europe and occurs in Japan. 



Theridion sisyphium (Clerck). 



T. nervosum, Bl. (Spid. G. B. I.). 



Ulster, Connaught, Munster, Leinster. 



This spider is common in the north and east of Ireland, but I have 

 seen no specimens from county of Donegal or Connemara. The limits 

 of its range, as at present known to me, would be marked by a line 

 passing from Londonderry, throngh Enniskillen, Mote Park (county 

 of Roscommon), Tuam and Cong (connty of Galway), Cratloe (county 

 of Clare), Limerick, and Cloonee Loughs (connty of Kerry). To the east 

 of this line it is generally distributed, and it doubtless awaits discovery 

 in more western districts. Adults are found from April to August. 

 In Great Britain T. sisyphium ranges far to the north (Sutherland- 

 shire), and inhabits abroad Greenland, Lapland, Norway, Sweden, 

 Finland, France, Corsica, Germany, Spain, Austria, Hungary, Croatia,, 

 and Italy. 



Theridion simile, Koch. 



Ulster. 



For this species I am again indebted to Mr. "Workman's list (1880), 

 having never seen an Irish example myself. It is found in England, 

 Scotland, Sweden, France, Corsica, Germany, Austria, Hungary, 

 Croatia, and Syria. 



Theridion pollens, Bl. 



Ulster, Connaught, Leinster. 



This little spider was found by Mr. "Workman (1880) in connty of 

 Antrim. I have received specimens from Armagh; Mote Park, county 

 of Eoscommon ; Clonbrock, county of Galway ; Tullamore, King's 



