The _butterfly_ appears in May and August, and though by no means a common or generally distributed insect, is found--and sometimes abundantly--in many localities throughout the country, as far north as Carlisle; some of these are here given. Woods in neighbourhood of Brighton, Horsham (Sussex), Dorchester, New Forest, Exeter, Epping, West Wickham Wood, Monkswood, Huntingdonshire, Plymouth, Wavendon, Worcester, Kent and Surrey, Teignmouth, Gloucestershire, Carlisle, Lake District, Leicester, Manchester, North Lancashire. _Unknown in Scotland._ * * * * * THE MARBLED WHITE BUTTERFLY. (_Arge Galathea._) (Plate V. fig. 3.) This highly interesting and elegant insect would, by the uninitiated, probably be classed among the last group of Butterflies--the Whites--from the similarity in its colours; but from all those it may be readily distinguished by having _only four walking legs_ (instead of the _six_ which all our other white butterflies possess), {96} and also by the _eye-like_ spots most visible on the under side. The colouring may be described as consisting of nearly equal quantities of _black_ and _creamy-white_, or _pale yellow_, so arranged as to form a _marbled_ pattern of great richness. This description applies to the upper surface; on the under, the pale tint very much preponderates, many of the black masses of the upper side being here reduced to mere lines. Many an entomologist, whose hunting ground has been limited to a small district, has collected for years without once seeing this pretty creature on the wing; and then visiting another neighbourhood, perhaps not far distant, he will suddenly find it in profusion. I well remember the feelings of surprised delight with which, under these circumstances, I first made its acquaintance. The scene of the event was a grassy opening in a wooded hill-side in Kent, and here were literally hundreds visible at once, making the air all alive as they fluttered about in sportive groups: it was a sight not to be forgotten; while a hundred yards from this spot not a solitary one was to be seen, so closely limited is the local range of this species. The _caterpillar_, which feeds on grasses, like the rest of its tribe, is green, with yellowish stripes on each side, and has a reddish head and tail. The form is shown at fig. 3, Plate I.--a form common to all the tribe to which this species belongs. July and August are the months when we should {97} look for this charming butterfly, in wood clearings and meadows near woods. Some of the localities in which it has been observed are: Isle of Wight, Surrey Hills, Eastwell Park (Kent), Dover, Lewes, Brighton, Epping, Gloucestershire, Kingsbury, Darenth Wood, New Forest, Rockingham Park, Teignmouth, York, Barnwell Wold, South Wales. _Not known in Scotland._ * * * * * THE SPECKLED WOOD BUTTERFLY. (_Lasiommata Egeria._) (Plate V. fig. 4.)