58 Proceedings of the Royal Irish Academy. 



Bistrtbv.tmn. —Great Britain (ranges from the south of England to Xorth 

 Shetlands). Central and southern Europe. Jersey. Also in Denmark 

 (Silkeborg and Eanders, fide Petersen). 



Cloeon mfulum (Miill.). 



MlINSTEB. CONNAUGHT. LEINSTER. 



M. — Kerry (Deenagh Eiver ; Gap of Dunloe). C. — Slayo (Knappagh and 

 Mount Brown Loughs). L. — Westmeath (Coosau Point). 



Distrihution. — Great Britain (south of England to Inverness). Widely 

 distributed, ScandinaNia to Algeria. 



Siphlurus armatus Eaton. 



MUNSTER. 



M. — Kerry (Killarney). 



Distribution. — Not ascertained. England (Eatoti). 



Siphlunis lacustris Eaton. 



MUN.STER. CoyNAUGIIT. LEINSTEK. 



M. — Kerry (Gap of Dunloe). C. — Galway (Castlekirk; Maumwee 

 Lough). Boscommon (Yew Point). Mayo (Kip Lough). L. — Westmeath 

 (Shannon at AUilone; Coosan Point). 



Distrilmtion. — Great Britain (Snowdon, Ilannoch, &c.). Norway 

 (Tysfjordcn, fide St rami). Savoy; Italy; Denmark; and Steicrmark {His, 

 Die Siisswasaerfauna Deutsohlands, 1909). 



Kithrogena semicolorata (Curt.). 

 MUNSTER. LeINSTER. 



M.— Kerry (Deenagh River and Coppagh Glen). L.— Dublin, (Dodder 

 at Tallaght). 



Distribution. — Great Britain (Devon ; Dorset ; Cumberland ; Lake 

 District ; Perth ; Inverness). Western Europe, ranging from Scandinavia to 

 the Alps and Pyrenees. 



Heptagenia sulphurea (Miill.). 



MUSSTER. COXSAUGHT. LEIXSTER. UlSTEB. 



M. — Kerry (Woodlawn ; Dinish ; Horse's Glen ; Gap of Dunloe). 

 Waterford (Lismore). C. — Galway (Lough Corrib near Galway). Eoscommon 

 (Yew Point). Sligo (near Sligo; Markree Castle). L. — Dublin (Lucan). 

 Westmeath (Bog of Allen; Shannon; Coosan Point; Ballykeeran ; 

 Killinure ; Waterstown). Louth (Castlebellingham). TJ. — Donegal (Gorteen ; 

 Ifem and Keel Loughs ; Glen Beagh ; Clonkillybegj. Armagh (Coney Island 

 in Lough Neagh). 



