60 Proceedings of the Royal Irish Academy. 



and Aran, Morton). Abroad it inhabits Scandinavia and central Europe ; 

 Lower Alps ; Carinthia ; Croatia to Bosnia ; Herzegovina ; &c. Not recorded 

 in Navas's Spanish list (1908). 



*Perla cephalotes Curt. 



MUNSTER. 



M. — Kerry (nymph taken in a stream flowing out of Lough Eighter at 

 an elevation of about 1500 feet on Carrantuohill, June, Halbert). 



A Pei'la-nymph found under stones in the above-mentioned locality is 

 apparently referable to the present species, as it agrees exactly with cqjhalotcs 

 nymplis taken by Mr. K. J. Morton in the south of Scotland. An adult male 

 taken in Ireland by Prof. G. H. Carpenter is in tlie Dublin Museum. 

 L^nfortunately the place of capture of this specimen is uncertain, though 

 it is possibly from the shore of Lough Gill in County Sligo. 



Dislrihution. — Found in Great Britain, from Devonshire to the Clyde and 

 Forth districts of Scotland {Morton); northern and central Europe, and as 

 far east as the Carpathians ; Spain {Kavds). 



Dictyopteryx Mortoni Klap. 



MUKSTER. LeISSTKR. 



M. — Keny (Deenagh Elver, King). L.— Louth (Castlebellingham ! 

 Thornhill). 



Probably widespread in Ireland. Mr. Morton points out that the insect 

 figuring in British collections as Dictyopteryx microccphala must in future 

 be recorded as the present species (Entom. Monthly Mag., 1907). 



Distribution. — In Great Britain this insect has been reported from many 

 higlilaud lakes and lowland rivers, ranging south to the rivers Severn, 

 Kennet, and Test {Morton). Continental range uncertain. 



Dictyopteryx (Dictyopterygella) recta Kempny. 



CONNAUGHT. LeIXSTKK. Ui^TER. 



C— Eoscommon (Mote Park, Halbert). Sligo (near Sligo ! Johnson). 

 L. — Wicklow (Streams from Glendalough Lake and Glenmalur valley, 

 Halbert). U.— Armagh (Coney Island in Lough Neagh ! Johnson). 



Occurs under stones on the margins of streams and lakes, appearing 

 at about the middle of April. This species has been named in British 

 collections for many years as Isogcnvs nubecula. 



Distribution. — Great Britain (recorded by Mr. Morton as an abundant 

 insect at many highland lakes, from the Forth district northwards). 

 Northern Europe to Finland. Klapalek records this species from alpine 

 lakes in the Eiesengebirge ; Carpathians ; Siberia. 



