104 H AUSTELL ATA. LEPIDOPTERA. 



Rather scarce, at least within the metropolitan district, where it 

 occurs in June, at Coombe and Darenth woods. 



Sp.20. dorsana. Alis anticis piceo-nigi-is, sfi^igis posticis costalihus, maculuijue 

 TTiedid communi unistrigata argerdeis, pusticis albidis Jimbria fused. (Exp. 

 Alar. 3 — i lin.) 



Py. dorsana. Fahricius. — Ps. dorsaua. Steph.Catal.u. 176. No. 6937. 



Anterior wings dull pitchy-black, with eight oblique silvery-white streaks 

 towards the tip of the costa, and a minute dot of the same on the hinder 

 margin: in the middle of the inner margin is a slightly oblique somewhat 

 tetragonal silvery-white blotch, intersected transversely to the wings, with 

 a slightly waved black line: posterior wings whitish, with a dusky border. 



Apparently very rare : I have a specimen which was taken at 

 Darenth wood in June ; it has also been found at Birch wood and in 

 Norfolk. 



E. Anterior wings narrow, with a round ocellus at the apex, the inner margin 

 immaculate : — Aspila. 



Sp. 21. Lediana. Alis anticis obtusissimis purpurascentibus, obsolete fusco nebu- 



losis et strigatis. (Exp. Alar. 4 — 5| lin.) 

 Ph. To. Lediana. Linne.—Fs. Lediana. Steph. Catal. ii. 176. No. 6933. 



Anterior wings very obtuse, dull brownish-black, with a purplish gloss in 

 certain positions of light, with numerous darker clouds and slightly waved 

 streaks; the costa streaked with tarry and brown ; the middle of the inner 

 margin is sometimes palish : posterior wings pitchy-black. 



Rather variable in size and colour; the streaks on the costa occasionally 

 whitish. 



Not common ; found occasionally in the woods within the metro- 

 politan district : also in Norfolk, the New Forest, and in Devonshire, 

 in June. 



Sp. 22. nitidana. Alls nigris, antieis faseiold unangulatd media cinereo-argented, 



lineoUsque posticis costalibus argenteis. (Exp. Alar. 3 — 4 lin.) 

 Py. nitidana. Fabricius. — Ps. nitidana. Steph. Catal. ii. 176. No. 6939. 



Anterior wings black, with an obscure silvery-ash fascia, iniangulated in the 

 middle exteriorly, and divided by a very faint dusky streak : there is also a 

 second very obscure abbreviated silvery-ash streak near the hinder margin ; 

 on the apex of the costa are three pair of silvery-white streaks, from the 

 first pair of which the angulated fascia arises : posterior wings black. 



Moderately common ; taken at Darenth and in the New Forest in 

 June; also in other places within the metropolitan district. 



