TOETRiCINA. 169 



ranging from pale ochreous to dark slaty-grey. The instance 

 above described is the var. P. albicostana of Stephens. 



The var. P. bistriana has a slightly-waved bay or chestnut- 

 coloured streak running from the base to the apex, and a second 

 one from the base nearer the dorsal margin, where it is broadest, 

 vanishing to near the apex. 



The var. P. similana is like P. albicostana, but has an acute tri- 

 angulate mark upon the costa, beyond the middle, and extending 

 to near the apex, with a suffused mark near the base on the dorsal 

 margin, both iron-grey or pale liver-colour ; these markings are 

 more or less distinct in different specimens. 



The dark slaty-grey specimens have very frequently an oblique 

 crimson streak running from the base to the apex. 



The imago appears from July to November. It was till within 

 these few years a scarce species; but latterly it has turned up in 

 plenty at Wimbledon Common, where it is beaten out of Fern, 

 but the larva is believed to feed on Salix fusca (the Dwarf 

 Sallow). It has occurred also at Birch Wood, near Dover, and 

 at the New Forest. 



5. Lipsiana, Schiff. Alls anticis fuscis ; squamis griseis irroratis, 

 ad costam pracipue ; ciliis griseis ; posticis nitidis fusco-griseis ; 

 subtus ad apicem punctis fuscis. $ Exp. al. 9 lin. 



Head and face chocolate-colour, the tips of the scales whitish. 

 Eyes black. Palpi longer than the head, pale chocolate at the apex 

 and at the sides, grey beneath and between. Antenna? glossy fuscous, 

 with a grey bloom. Thorax and patagia dull chocolate, the tips of 

 the scales whitish ; the crest of the former dull red. Anterior wings 

 glossy, brick-red, thickly irrorated with dark-grey scales with paler 

 tips, especially towards the costa. Apical scales dark grey, with 

 paler tips. Cilia dusky grey, with whitish tips; the bases also 

 speckled with whitish. Posterior wings glossy, grey at the base, 

 with a fuscous tinge towards the margins. Marginal scales drab. 

 Cilia long, paler. Abdomen grey, the apex drab. $ Exp. al. 

 8-9| lin. 



A Scotch species, if really distinct from the preceding, which 

 is not satisfactorily determined. In its normal form it is exceed- 

 ingly like some of the slaty-grey varieties of P. rufana, so much 

 so as not to be distinguished from them. The food-plant of 

 rufana is supposed to be Salix fusca (the Dwarf Sallow) ; but 

 that of the reputed Lipsiana is Myrica Gale (the Sweet Gale), or 

 Vaccinium Vitis idaa (Red Whortleberry). 



The imago appears in August and September, and occurs at 

 Kanuoch in Perthshire, N. B. 



