758 Proceedings of the Royal Irish Academy. 



D. impressa, Payk. 

 Ulster. Connaught. LErNSXER. ITiosfSiEE. 



Donegal (J.). — Deny (Foyle dist., '00 E.). — Fermanagh (Belleisle, 

 '98 Pr.).— Eoscommon (Lough Eee and Mote Park, '98 Ht. 1).— 

 Galway (Lough Derg, fit. ; Clonbrock, '96 Ht. 2). — King's County 

 (Shannon at Clonmacnoise, '00 Ht. 1). — Carlow (Borris, '95 Ht. 8.). — 

 Clare (Killaloe, '71 S.). — Cork (Lakes near Glandore, Ht.). 



Locally common on hoggy heaths, and lake shores, in the west of 

 Ireland, hut rare in the east. 



D. simplex, F. 



Dlstee. Co^^^^aught. Lees^stek. Mten'Stee. 



Down, Armagh, Fermanagh, Galway, Westmeath, Dublin, 

 Wexford, Kilkenny, Clare, Limerick, Waterford, Cork, Kerry. 

 Common. 



D. vulgaris, Zsch. 



TJlSTEE. LeIJ[STEE. 



Antrim (Lagan near Moira, B.). — Down (Strandtown, '00 J. 

 4). — Armagh (Dowry's Lough, '92 J. 4.). — "Westmeath (Lough 

 Derrayaragh, Ht.). — Dublin (Koyal Canal, Eaheny, and Crumlin 

 quaiTies, '00 Ht. 3), 



Local ; usually found singly. 



D. clavipes, F. 



CoKNArOHT. MUiS'STEE. 



Eoscommon (Lough Eee, '98, Ht. 1). — Clare (Dromoland Castle, 

 Ht., coll. D.). 



Apparently a scarce species in Ireland ; in the fixst locality a single 

 example occurred on a reedy islet near the middle of the lake. 



D. semicnprea, Panz. 



MujfSTEE. 



Kerry (Crimcaun Lake, near Killarney, '98 Ht. 4). 

 Taken on JSfymphcea alia, by Mr. Cuthbert. The record, Armagh, 

 ('92, J. 4), should refer to JD. simplex, F. 



