ZOOLOGICAL NOTES 119 



in the first haul, and on looking again at the pool I saw that the 

 water was moving with them. Another similar pond close by 

 was found to be in the same condition. 



Both ponds had been much deeper, and were then drying up, 

 which probably accounts for the " density " of the fauna ! 



On my return to the spot some ten days later, the pools were 

 both dry and hard, and all over the mud were marks of Sea Gulls' 

 feet, the only sign of Apus being a number of " shells " on the 

 mud ! On that occasion I found one other pool, rather deeper 

 than the other two, which contained some Apus, and I took the 

 precaution of distributing them in two or three other pools round 

 about, which looked as if they were permanent. All these pools are 

 so situated that they are very occasionally submerged by the sea, as 

 I learnt from some of the local inhabitants. 



I examined the same ground in July of last year and found all 

 the pools dry, even those which I had thought were permanent. I 

 returned there again in September, and although all the pools were 

 then full of water, there was no sign of Apus. 



The appearance of the species in Britain has been spasmodic, it 

 having been recorded, I believe, only some three or four times, so 

 that it can scarcely be called a native species, unless there is some 

 permanent and as yet undiscovered centre in Britain, which seems 

 most improbable. The species is common in Central Europe, and 

 it is certainly remarkable that it should suddenly appear in the 

 south-west corner of Scotland. Dr. Scharff when he heard of my 

 discovery suggested that possibly I had found Lepidurus glaciciHs, 

 an arctic-alpine phyllopod common in Northern Scandinavia, 

 Greenland, etc., and of which fossil remains have been found in 

 the northern parts of the British Islands. There seems no doubt, 

 however, that the Preston Merse species is Apus caneriformis. 

 FRANK BALFOUR-BROWNE, Holywood, Co. Down, Ireland. 



Notes on Lepidoptera in the N.E. Highlands. I. The follow- 

 ing is a further list of species unrecorded for Ross-shire in Barrett's 

 " British Lepidoptera" which I have taken, mostly in 1908, at or in 

 the neighbourhood of Swordale. 



Leucania lithargyria, Esp. ; Luperina tesfacea, Hb. ; Agrotis 

 saucia, Hb. ; A. prcEcox, L. ; A. simulans, Fb. ; Noctua depuncta, 

 L. ; Anchocelis /itura, L. ; Xanthia flavago, Fb. ; Dasypolia tempi! , 

 Thnb. ; Epunda lutiiknta, Bork. ; Aph'cta tincta, Brahm. ; Hadcna 

 t/ialassitta, Rott. ; Tephrosia punctitlaria, Hb. ; Geometra papilioiiaria, 

 L. ; Panagra pefraria, L. ; Hibcniia aurantiaria, Esp. ; Larentiti 

 olivata, Bork. ; Eupithecia trisignaria, H.-S. ; E. tenuiata, Hb. ; 

 Herbula cespitalis, Schiff. ; Ennychea octomaculata, Fb. ; Scapula 

 a/pinalis, Schiff. ; Alucita liexadactyla, L. ; Phycis fusca, Haw. ; 

 Leptograinma niveatm, Fb. ; Peronea rufana, Schiff. ; P. sponsana, 

 Fb. ; Pent/tin a marginana, Haw. ; Sericoris urticana, Hb. : Euchromia 



