The caterpillar is light green, with lines on the back and sides, and may be swept from grasses with the net in midsummer. The chrysalis is short and stout, and is found suspended by the tail to a strong grass stem.
The butterfly loves to rest on walls and stones which have been warmed by the sun; hence the name the “Wall Brown.”
The Grayling Butterfly (Satyrus Semele), [Plate IX.], Fig. 6. —This fine butterfly is larger and bolder in flight than any other of this group in our country. But you must always remember that butterflies love the sunshine, and without its cheering presence they are all very dull fellows indeed. Hence it is that a butterfly may appear, and really is, difficult to catch on a bright, warm day; yet it may fall an easy victim, and give but indifferent sport on a dull one. The Grayling has a strong partiality for living near the sea, and is found all along the west coast of Scotland, whether it be on a rock-bound shore or in a sandy, sheltered bay. During July and August one is pretty sure to encounter the Grayling sporting along just above high-water mark, and, not infrequently, whole colonies of them. The lichen-covered rocks above the shore are his favourite resting-place, and here he can sit and bask in the sun, and once he has closed his wings he may be said to have disappeared, so beautifully does the under side of his wings blend with the colour of the surrounding rocks. He shows a certain amount of wisdom, too, at times, for if you make a stroke at him with a net and miss, he is off to sea, flit-flitting just above the water, and making a wide detour before coming back to land.
The wings are brown, with an irregular light tawny band, in which, on the fore-wing, are two eye-spots, and on the hind-wing only one. But the finest ornamentation is on the under side of the hind-wings, which bear a strong resemblance to a granite rock speckled with lichens.
The caterpillar, I think, feeds mostly at night, as I have found it during the day under stones in hilly districts near the sea. It is variable in colour—brownish to black, with a few lighter lines on the back and sides, and it has a dirty putty-colour on the under side. It feeds on grass in May. The butterfly is out from July to September. It appears in August in Scotland.
The Meadow Brown Butterfly (Epinephele Janira), [Plate IX.], Fig. 7.—Perhaps this is the commonest of all our brown butterflies. On roadside or hillside, moor or meadow, one can hardly fail to notice this homely brown insect all through the summer rambles. The males are smaller and dingier than the females. They have an obscure reddish patch on the fore-wing which, with an eye-spot, relieves the upper surface of dark brown. The females are brighter and often more variable, the fulvous patch on their fore-wings being large and bright, and even extending into a band on the hind-wings. There is occasionally an inner patch of suffused yellow on the centre of the fore-wings; the under side is a paler brown, with a decided band of grey-brown on the hind-wing, which is also slightly scalloped.
The caterpillar is a delicate green, with a white line on either side, and may be swept from moorland grasses in May and June. The chrysalis is short and dumpy; pale papery grey, rather fragile, and is hung up by the tail to a grass-stem. The butterfly is out practically all through the summer.
The Small Meadow Brown (Epinephele Tithonus), [Plate IX.], Fig. 8.—Also a common species, but does not so range far north. Wings, a bright tawny red inclining to yellow, bordered with dark brown, with an indistinct diagonal bar across the wings in the male. There is also a black spot near the tip of the fore-wings containing two tiny white spots; occasionally there are two small eye-spots on the hind-wings also. The under side of the hind-wing is shaded with red-brown and pale ochre, and bears a few small white spots surrounded by red rings. Under side of the upper wing is pale tawny yellow with outer edge dark; there is a black spot at the tip with two white dots in it.
The caterpillar varies from green to grey-brown; there is a dark red line along the back, and two light lines run along each side. It is a grass-feeder, and prefers a drier situation than the last species. Perhaps this is the reason for it being found in Ayrshire, the driest and sandiest county in Scotland. July and August are the butterfly’s months.
The Ringlet Butterfly (Epinephele Hyperanthus), [Plate IX.], Fig. 9.—This is a common and not very attractive-looking butterfly. Its colours, if it can be said to have any, are dingy in the extreme. The upper surface is a dark sooty-brown hardly relieved by a few faint eye-spots, which are very small and not always present. A dirty white fringe completes the upper side. The under side affords some compensation, however, for here we have the ringlets in some variety—pale yellow for the outer ring, which encloses black with a white spot in the centre. They are arranged three on the upper wing and five on the lower. They vary in size, as will be seen from the figure ([Plate XIV.], Fig. 9). It is not a very lively insect; it frequents dry pasture-fields in Scotland, preferring those bordering the sea.