218 THE ENTOMOLOGIST. 



College, Newcastle-on-Tyne, for much valuable information and 

 a very complete list, with several additional records, the result of 

 two holiday visits to this district in 1909 and 1910; the more 

 interesting of these notes, with others, appeared in the ' The 

 Entomologist,' vols, li and lii, under the title of " Gleanings from 

 My Note-books." 



A large area in the centre of the county, consisting of wide 

 moorlands, studded with numerous lakes ; fertile valleys, many 

 glens clothed with native shrubby woods ; dominated by the 

 isolated mountain MuUaghcarn, 1778 feet in elevation : and in 

 the north a mountain range rising to over 2000 feet ; is all practi- 

 cally unknown as far as the lepidoptera are concerned. Perhaps 

 Erebia var. cassiope may some day be discovered on these 

 mountain slopes, if the supposition is correct, viz. that this 

 species jDassed from Scotland across the north-west of the 

 country to the Mayo mountains, its onl}^ known Irish habitat. 



The few lepidoptera that have been met with in this remote 

 district are not without interest ; a fine form of Dryas vaphia with 

 greenish white spots on the wings was found in one of the glens 

 where the type is abundant ; Ccenonyvipha typhon is often plenti- 

 ful on the boggy ground, and Polyommatns iainis is large and fine. 



Of the western area bordering on the County Donegal little 

 or nothing is known ; a fine banded form of Oporabia dilutata is 

 common in Baronscourt demesne. 



Turning to the east, the Lough Neagh district, with its miles 

 of low peat-bogs (fast disappearing owing to drainage and peat- 

 cutting), is the home of some local insects; on the bogs Callo- 

 phrys rubi frequents the birch trees, as also Drepana falcnla and 

 lacertinaria ; among the heather and dwarf birches Ptychopoda 

 (Acidalia) inornata, Selidosema ericetaria and Pcrconia strigillaria 

 are often not uncommon, followed later by Eueretagrotis (Agrotis) 

 agathina, and Dyschorista suspecta ; Dasychira fasccUna is also 

 confined to this district. On the sandy shore of the lake Euxoa 

 (Agrotis) vestigialis occurs together with Gortytia {H ydrcecia) cnna- 

 nensis, and in the marshy meadows Krastria {Hydrelia) uncula is 

 locally abundant. 



The geology of the county is very varied, the northern 

 mountains and a considerable area thereabouts are composed of 

 metamorphic rocks ; in the centre Old Eed Sandstone and 

 Silurian ; in the south Carboniferous Limestone and shales ; and 

 in the east coal measures, New Ked Sandstone, Magnesian Lime- 

 stone, volcanic rocks, with the Tertiary clays of Lough Neagh. 



The following list includes all the records and localities quoted 

 by Mr. Wm. F. de Vismes Kane (K.) in the ' Catalogue of the 

 Lepidoptera of Ireland,' as also the notes and observations of 

 Prof. J. W. Harrison (H.). Records uninitialled the writer is 

 responsible for. Those marked thus * are unrecorded for the 

 county in Mr. Kane's catalogue. 



