The Moths of the British Isles - LightNovelsOnl.com
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GOLD SWIFT (_Hepialus hecta_).
Both s.e.xes of this species are shown on Plate 158, where Fig. 7 represents the golden-marked male, and Fig. 8 the more dingy, dull, purplish-grey striped female. There is variation in number and in size of the markings on the fore wings of the male, and occasionally the hind wings in this s.e.x are adorned with golden spangles on the outer area.
The pale greyish brown caterpillar has glossy darker brown {364} plates on rings 1-3, and the raised dots and the spiracles are black. It feeds on the roots of bracken, and is full grown about May. Buckler states that at first it burrows in the root, hibernates when small, resumes feeding in April, attains full growth before winter, and hibernates in the earth for a second time; in the spring of the second year it gnaws cavities in the young shoots of the bracken, and apparently drinks the flowing sap.
The moth is out in June. The males fly at dusk, something in the manner of _humuli_, over and among the bracken; but the females fly in a more or less direct line. An odour given off by the males of this species has been likened to that of the pine apple; whilst the "scent" of the Ghost Moth is said to be more of the billy-goat character.
In most woody localities, where the bracken flourishes, this species will be found throughout England, Wales, Scotland to Aberdeen and the Hebrides, and Ireland.
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