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Porcellio dilatatus Brandt. 

 As a native this species must be regarded with suspicion, as 

 it has been found for the most part in gardens or more usually in 

 warm greenhouses, where it often proves numerous. It has been 

 recorded from eight of our County Divisions, viz., Virginia, Cavan; 

 Rossmore Gardens, Monaghan; Island in Lough Erne, Fermanagh; 

 Bundoran, Donegal E. ; Stuart Hall, Tyrone ; Coney Island and 

 Loughgall, Armagh; Ormeau Park (Belfast), Hillsborough, Belvoir 

 Park, Castlewellan, Newtownards and Knock, Down; and Belfast, 

 Balmoral, Dunmurry, Langford Lodge, Crumlin and BaHycastle, 

 Antrim. 



Porcellio laevis Latreille. 



This species has perhaps the most world-wide distribution. 

 It is said to be common about Dublin, but seems to be extremely 

 rare in Ulster. Our only records for it are one specimen from 

 the garden at Richhill Castle, Co. Armagh ; and three juvenile 

 specimens from Crawford's Nurseries, Belfast, Co. Antrim. 



Nagara nana Budde-Lund. 

 A single specimen of this species was taken in a warm 

 greenhouse in the Botanic Gardens, Belfast, Co. Antrim, and was 

 identified by Dr. Budde-Lund. Elsewhere it has been met with 

 only in Madagascar and some of the neighbouring islands. 



Porcellionoides [Metoponorthus] pruinosus Brandt. 

 This is another species about which doubt exists as to whether 

 it is really native. Its usual habitat with us is in warm green- 

 houses, but it is frequently found in gardens near such structures. 

 The only places in Ulster where it has been obtained in the open 

 are by the roadside near Killough, where it is numerous, and a 

 single specimen was observed in the railway yard at Armagh 

 Goods Station. It has been found in Cavan Town, Cavan ; 

 Rossmore Gardens and Glaslough, Monaghan ; Foyle District, 

 Donegal E. ; Baronscourt, Tyrone ; Armagh City and Loughgall, 



