62 Proceedings of the Royal Irish Academif. 



to an interesting form of this insect. " The genitalia of the s are identical 

 with a preparation of mine (typical) from Loch Ard, Perthshire. The form 

 is slightly brachypterous, and therein lies the interesting point. I saw 

 in the McLachlau collection, some $ $ from Braemar which were also 

 somewhat short-winged. Klapdlek has described from $ $ a species 

 which he calls C. vidua, and he suggests that the Braemar specimens 

 may be his vidua. In the absence of the <? , however, it is somewhat 

 difficult to decide on the value of the species at all " {Morton, in litt.). 



Distribution. — In Great Britain this insect has been found on the shores 

 of highland lakes in Inverness, Perth, and Aberdeenshire. On the Continent 

 it has been recorded from Scandinavia, ranging north to Finnish Lapland 

 (Sahlberg) ; Switzerland (Bis) ; Spain (Sierra Nevada, Klapdlek) . 



•Taeniopteryx Risii Morton. 

 Leinstkr. 



L. — Wicklow (Glendalough and Laragh, Halhert). 



Common where it occurs on the banks of rapid streams, appearing about 

 the middle of April. 



Distribution. — Great Britain (frequents streams in various localities from 

 Devon to Perthshire). "Widely distributed in Europe, having been recorded 

 from Norway ; Switzerland ; Albania ; France ; Pyrenees, and Spain. 



[Tacnioptayx ntbttlosa is given with reserve in Mr. Haliday's MS. Catalogue, 

 so that further e\idence of its occurrence in Ireland is required.] 



•Nemoura praecox Morton {N. marginata Kempny). 



Leinster. 



L. — Wicklow (Glencree, Carpenter). 



A female specimen taken at this locality in April is in the Dublin 

 Museum {fide Morton). 



Distribution. — Great Britain (not rare; Perthshire; Clyde; Forth; and 

 Manchester districts, Morton). Continental range unknown ; has been 

 recorded from Germany (/?«), Switzerland, and Lower Austria. 



•Wemoura Meyeri Pict. 

 Leinstkr. Ulster. 



L.— Dublin (River Dodder at T&M&^ht, Halbcrt). Wicklow (streams at 

 Glendalough, Glendasan, Laragh, Lough Bray, and Powerscourt, Halbert). 

 U. — Antrim (Cave Hill, Halidaii collection). 



Apparently common in suitable localities. Appears on the Wicklow 

 streams at about the middle of April. 



Distribution. — The range of this insect in Great Britain is not known, 



