THE BRITISH WOODLICE. 



99 



Gm«-METOPONORTHUS Budde-Lund, 1879 (7), p.4 



Porccllionides Miers, 1876 (44), p. 98. 

 Flagellum, ivith two joints ; abdomen, narrow ; frontal lobe not 



developed. 

 The hinder legs of Metoponorthus are proportionately longer 

 than in any other Oniscidae save Philoscia. Both genera have a 

 narrow abdomen, but Philoscia has an extra joint to the flagellum, 

 and shows no sign of lateral lobes to the head. 



Metoponorthus pruinosus Brandt. Plate XIX. 



1833 Porcellio pruinosus Brandt (3), p. i8r. 



1840 Porcellio truncatus Milne-Edwards (46), p. 173 



1840 Porcellio maculicornis Koch (34), part 34, pi. XVI. 



1853 Porcellio frontalis Lereboullet (39), p. 63, pi. I, fig. 17. 



1868 Porcellio pruinosus Bate and Westwood (1), p. 487. 



1877 Porcellio (Porcellioicles) flavo-vittntus Miers (45), p. 669 pi., LXVIII., 



fig. 4. 



1898 Metoponorthus pruinosus Sars (59), p. 184, 'pi. LXXX., fig. 2. 



Undamaged specimens of Metoponorthus pruinosus are of a 

 beautiful bluish-grey colour, owing to a "bloom" which is 

 easily brushed off, revealing a dark reddish - 

 brown tint beneath it. The antennae are long 

 and have white markings upon them. 



Air-tubes occur in the first two abdominal 

 appendages. 



BRITISH LOCALITIES :— 



England: Maldon ; (W.M.W. from R.M.) : 

 Hanwell ; Eton Wick ; Kew ; Ipswich; Stoke- 

 on-Trent; (W.M.W.) : Chiselhurst; Oxford; 

 (Bate and Westwood): Berkhamsted ; Burn- 

 moor ; Durham ; (Norman, 49) : Exeter ; 

 (Parfitt, 53) ; Torquay ; (B.M.— T.R.R.S.) 



Scotland : Banff ; (Thomas Edwards in 

 Norman, 49), 



Ireland : Dublin ; (Kinahan, 32) : Foyle Dis- 

 trict ; Donegal ; Galway ; Clonbrock, Co. 

 Galway ; Mornington, Co. Meath ; Santry ; 

 Gleeson Park ; Dundrum, Co. Dublin ; Bray ; (R.F.S.) 



FIG. 53.— FLAGELLUM 

 AND LAST PEDUNCULAR 

 JOINT OF THE ANTENNA 



of Metoponorthus 

 pruinosus. 



FOREIGN DISTRIBUTION :— 

 Europe : Practically all die Countries of Europe are given in Dollfus' list ; (23). 

 Asia : Japan ; China ; Syria ; Ceylon ; Sumatra ; Celebes ; Phillipines ; 

 Caucasus; Himalayas; (23) : Christmas Island; (B,M.) 



Africa', Generally distiibuted; Madagascar; Seychelles; (23). 



