. The moths of the British Isles . 2 /v. II. t, 2. Red-headed Chestnut Chestnut Moth. 7-IO. Dark , ij. Dotted Chestnut. C 21. THE DUSKY-LEMON SALLOW. 21 The Dusky-lemon Sallow {Mellinia {Xant/ua) gilvago). Two examples of this species are shown on Plate lo, Figs. 9and 10. The purplish-brown mottling or clouding and greyishsuffusion of the fore wings is much denser in some specimensthan in others. Often the suffusion is quite absent, and thepurplish brown is only seen as spots. Again, in an almostunicolorous form the ground colour is of a pale orange tint,the cross markings
. The moths of the British Isles . 2 /v. II. t, 2. Red-headed Chestnut Chestnut Moth. 7-IO. Dark , ij. Dotted Chestnut. C 21. THE DUSKY-LEMON SALLOW. 21 The Dusky-lemon Sallow {Mellinia {Xant/ua) gilvago). Two examples of this species are shown on Plate lo, Figs. 9and 10. The purplish-brown mottling or clouding and greyishsuffusion of the fore wings is much denser in some specimensthan in others. Often the suffusion is quite absent, and thepurplish brown is only seen as spots. Again, in an almostunicolorous form the ground colour is of a pale orange tint,the cross markings and outlines of the reniform are as in thetype, and the series of blackish points on the submarginal line,usually present in the type, are more conspicuous, owing toabsence of the other usual dark markings ; this seems to bethe palleago of Hiibner, which has been considered a distinctspecies ; I think, however, that it is only a form of earliest recorded British specimen of this form was takenat Brighton in 1856, and
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