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Hepialus humuli var. Hethlandica. I am unfortunately unable 
to show you this insect, being unable to procure specimens, 
but I exhibit a plate showing some of the principal 
remarkably aberrant forms of this, the common Ghost 
Moth. 
Hepialus velleda. Exclusively a northern insect in the British 
Isles. The Shetland form is far more distinctly and 
beautifully marked than the ordinary type. In the south 
it is always a mountain insect, and is found in the Pyrenees 
and Altai mountains. 
Larentia caesiata. Abundant in the N. Counties of England. I 
took it last year near the summit of Sea Fell Pike. The 
Shetland form is much darker than the English or 
Scotch type. 
Emmelina albidata. The Hebrides form is very distinct, and has 
been named var. Hebudium. The Shetland form is named 
var. Thules. Both varieties vary much in the colouring 
and marking. 
Melanippe hastata. The English and European forms are very 
similar. The Shetland form is smaller and much more 
beautiful. There is a row of black spots along the centres 
of the wings which are not developed in any of the typical 
form. The Shetland form is an intermediate between 
Melan. hastata and the Icelandic species M. hastulata. 
(In Entomologist for Jan., 1881, is a beautiful var. of M. 
hastulata.) 
Camptogramma bilineata. The common Shell Moth. This 
common moth is exceedingly variable in its markings, some 
specimens being much darker than others, but I have seen 
none taken in England which approach the Shetland form 
in the distinct and beautiful dark tints. 
Xylophasia polyodon. This is an abundant and very variable 
species. I exhibit one specimen of the ordinary type of a 
beautiful brown variety, taken by Mr. Melvill, at Prestwich. 
But the Shetland form is distinctly black, and I have seen 
an immense number of this black variety, and am informed 
