( . xxvit ) 
species and on the distribution of several allied species in the 
United Kingdom. Lord Walsingham, as a Trustee of the 
British Museum, expressed his satisfaction at the presentation 
of the specimen to that Institution. 
Mr. Tutt exhibited specimens of Zygena exulans, and read 
the following notes on the subject:—‘The type of Zygena 
“evulans is stated in Staudinger’s Catalog to inhabit the 
‘‘¢ Highest Alps and Pyrenees.’ Its var. vanadis, Dalm., is 
‘stated to be found in ‘Lapland and the Scandinavian 
‘«« Mountains,’ and is differentiated from the type as being 
“¢ narcissime squamata, albo non mixta.’ The assumption 
‘‘ from this then is that the type is more thickly scaled and 
‘‘ mixed with white. In the last week of July, Dr. Chapman 
‘found in the Alps (in the La Grave district), at a consider- 
“able height, a form of Zygena exulans well scaled, as the 
“« species runs, and with the nervures and fore-legs of a decidedly 
“orange colour. The three specimens which he brought 
“away were large. A fortnight later, on a hill about 1000 
“feet above Cogne, specimens were taken, dark in colour, fairly 
‘¢ well scaled, but without any pale nervures (apparently males). 
‘“« A day or two later, more specimens were taken, similar to the 
‘“‘ La Grave district specimens, but with the nervures less orange 
‘« (apparently females), high up the Grauson Valley. Then, on 
‘the 17th August, Dr. Chapman captured a large number in 
“the Grauson Valley, some dark and well scaled, without 
‘the pale nervures, others generally less densely scaled with 
‘strong white nervures and marginal line to anterior wings: 
“to a large extent these characters seemed sexual, but not 
‘‘entirely so. Some years ago specimens of this species were 
‘taken at Braemar, by Dr. Buchanan White, and owing to the 
“‘ lack of scales which some of them showed, they were described 
‘‘as a subdiaphanous form under the name of var. subochracea. 
‘Tn 1886 Messrs. Tugwell and Lachlan Gibb captured a large 
“number of specimens, some of which were in moderate 
‘condition, and it was very evident that Dr. White’s varietal 
‘‘name would hardly answer except for worn specimens, 
‘‘ During the past two years a very large number of specimens 
“have been captured (and some probably bred), and of these 
‘T have seen a very considerable number. It is very evident 
