224 HAUSTELLATA. — LEPIDOPTKRA. 



Slightly variable in tint and in the form of the posterior fasciae on the anterior 

 wings. 



Very rare : it occurs occasionally near Darentli wood in July, and 

 also near Walworth, and other places within the metropolitan 

 district. 



B. Anterior wings without transverse fasciae : — Plecorota, Hubner. 

 Sp. 2. parenthesella. Alts anticis subtestaceis costd tenuiter palpisque alhis, 



posticisfuscis. (Exp. Alar. 8 — 9 lin.) 

 Ph. Ti. parenthesella. Linne. — Ma. parenthesella. Steph. Catal. ii. 199. 



No. 7235. 

 Anterior wings subtestaceous, or fuscescent, narrow, each with a very narrow 



longitudinal white streak extending from the base to a little beyond the 



middle of the costa ; posterior fuscous : head and palpi whitish. 



Rare : found about the heathy parts of Shooter's Hill about the 

 end of July or beginning of August. 



Sp. 3. marginella. Alis anticis obscure cinereis vel testaceis subnitidis, margi- 

 nibus niveis, posticis albidis. (Exp. Alar. 7 — 1\ lin.) 



Aln. marginella. Fabricius. — Donovan, iii. pi. 58, /. 2. — Ma. marginella. 



Steph. Catal. ii. 199. No. 7236. 

 Anterior wings dull griseous, or testaceous, sometimes fuscescent, slightly 



shining, the costa and interior and hinder margins broadly snow-white: 



posterior whitish, immaculate : head snowy ; palpi snowy within, fuscous 



without. 



Very rare : found about the end of June or beginning of July in 

 chalky places where Juniper grows : it has occurred near Darenth 

 wood, and also in the neighbourhood of Faversham and Dover. 



Sp. 4. bicostella. Alis anticis cinereo-albidis, costa longitudtnali fusca mar gine 



niveo, posticis albidis. (Exp. Alar. 9 — 10 lin.) 

 Ph. Ti. bicostella. Linne. — Ma. bicostella. Steph. Catal. ii. 199. No. 7237. 

 Anterior wings ashy-white, with a broad snow-white streak on the costa, 

 bordered within with a broad fuscous line, which is gradually shaded off to 

 the inner margin ; and in the middle of the disc are two or three minute 

 black dots, adjoining a fuscous line: posterior wings whitish: palpi 

 fuscous. 



Also rare near London, but found in various parts of the country ; 

 apparently not so uncommon in the New Forest, whence I have 

 obtained numerous specimens: it is found at Darenth wood and 

 near Dover, and appears to frequent chalky districts. 



