Johnson and Halbert — A List of the Beetles of Ireland. 597 



C. parallelogrammus, Ahr. 

 Ireland (H. coU.). 



There is an Irish example in the Haliday collection. The record, 

 Holywood ('92 Pt. & Dn.), requires confirmation, as the specimens — 

 which cannot be traced — may possibly belong to the following 

 species. 



C. impressopunctatus, Sch. 

 Ulstee, Mttnstee. 



Donegal (Foyle dist., '00 B.; Coolmore, '94 J. Ht. Cr.).— Down 

 (People's Park, '95 Ht. 4 ; Downpatrick, Ht., coll. Wl. ; Dundonald, 

 J.).— Armagh ('94 J.Ht. Cr.).— Waterford ('78 P.).— Kerry (Killarney, 

 '47W. 1). 



Very abundant in di'ains at Coolmore. 



Deronectes assimilis, Payk. 

 Ulstee. CoNisrAirGrHT. Leinstee. Mtjnsteb. 

 Donegal, Derry, Antrim, Down, Armagh, Roscommon, Gal way, 

 Westmeath, Dublin, Clare, Limerick. 



Frequent, but rather rarer than the following. 



D. depressus, F. 



Ulstee. CoNifATiGHT. Leinstee. Mtjnstee. 



Donegal, Derry, Antrim, Down, Armagh, Fermanagh, Sligo, 

 Roscommon, Westmeath, Dublin, "Wexford, Limerick, Kilkenny, 

 Tipperary, Waterford, Cork, Kerry. 



Common ; varies considerably in coloui', some specimens being 

 almost entirely black, or more rarely with the usual dark elytral spots 

 reduced to thin lines. 



D. xii-pustulatus, F. 



Ulstee. Leii^stee. Mtinstee. 



Donegal, Derry, Antrim, Down, Armagh, Dublin, Wicklow, Wex- 

 ford, Limerick, Tipperary, Waterford, Cork, Kerry. 



Local, though so widely distributed; found usually in running 

 water and affecting particular pools in streams. 



Hydroporus pictus, F. 



Ulstee. Connaught. Lelnstee. Mtjnstee. 

 Common. 



