4 The Irish NaturalisU January, 



does not affect this paper since neither species has so far 

 occurred in the south or east of Ireland. 



Octhehius viridis, Peyron/ was not recognised in Britain 

 as distinct from 0. margipallens, Latr., until 1907, and 

 apparently most, though not all, of the specimens recorded 

 under the latter name belong to this species. I recorded 

 margipallens for East Cork,^ but, not having kept the 

 specimens, I am unable to say whether they were correctly 

 named. Since, however, viridis has occurred in Ireland in 

 Armagh and Wicklow, and there is no other record for 

 margipallens, I think that the Cork specimens probably 

 were the former species. 



Apparently Hydraena angustata, Sturm, is not a British 

 species and all records of it apply to H. longior, Rey. I 

 have therefore so dealt with a record of angustata for 

 Waterford. Making allowance for these changes in 

 synonymy, about 124 species have occurred in the area 

 covered by the six counties, Dublin, Wicklow, Wexford, 

 Carlow, Kilkenny and Waterford, which I have included 

 within the scope of this paper. 



I have myself collected in all these counties but to a very 

 varying extent. My Dublin experience occupied two after- 

 noons, one of which was spent in learning how to find 

 Octhehius Lejolisii, and the other in working some salt marsh 

 nearPortmarnock, where I found a single specimen of Agahus 

 conspersus. The other five counties I visited at the end of 

 March and the beginning of April of the past year and the 

 extremely cold weather interfered greatly with my results. 

 One projected excursion to some mountain loughs at the 

 head of Glenmalur had to be abandoned as the high ground 

 was covered with snow, so that my mountain records in 

 Wicklow are all for the only piece of high ground which 

 seems to have been worked in that county, that along the 

 road above Lough Bray, on Kippure Mountain, which I was 

 fortunate enough to visit on a warm day before the snow 

 came. 



^ E. A. Newbery, E.M.M., Ser. 2,, xviii,, pp. 172-3, 1907. 

 2 Jrish Nat., xvi., Sept. 1907. 



