800 MICROPTERYGINA [HKPIALVS 



ous antemedian and irregular postmedian bands, former not 

 reaching costa. Hindwings in $ dark fuscous, in $ fuscous. 



Britain to Sutherland, E. Ireland, rather local ; N. and C. 

 Europe, N. Asia ; 6. Larva slender, pale greyish-ochreous ; 

 head, plate of 2, and several small plates on 3 and 4 shining 

 blackish-brown : in root-stocks and eventually shoots of Pteris 

 aquilina ; 7-6, living two years. The c emits a strong perfume 

 (compared to pine-apple) from the tibial tuft ; this serves to 

 attract the $ , which seeks for and flies against the $ . 



2. H. lupulinus, L. 24-38 mm. Antennae in simple. 

 Forewings light fuscous or ochreous- fuscous ; an irregular 

 whitish dark-edged streak from middle of base to near dorsum 

 before middle, and a similar streak from costa before apex to 

 above middle of dorsum, sometimes incomplete ; a whitish 

 longitudinal discal mark ; all markings more indistinct in 9 , 

 variable and sometimes wholly obsolete. Hindwings fuscous. 



Britain to the Orkneys, Ireland, common ; C. Europe ; 5, G. 

 Larva slender, ochreous-whitish ; head and plate of 2 brown : 

 on roots of Lamium, Plantago, Narcissus, etc. ; 7-4, living two 

 years. In this and the two following species the $ is attracted 

 by the $ in the usual way. 



3. H. velleda, Hb. 30-48 mm. Antennae in $ simple. 

 Forewings light brown-reddish, mixed with fuscous and dark 

 fuscous ; various irregular markings on anterior half, and an 

 irregular postmedian band furcate towards costa and not 

 reaching dorsum paler, dark-edged, enclosing central whitish 

 dark -edged inner markings ; an irregular subterminal streak 

 or spots whitish; cilia barred. Hindwings fuscous or dark 

 fuscous ; cilia barred. 



Britain to the Shetlands, Ireland, common, more local south- 

 wards ; N. and C. Europe ; 6, 7. Larva slender, grey- 

 whitish or ochreous-whitish ; head in $ red- brown, in $ 

 darker purple -brown ; plate of 2 in $ red -brown, in 9 pale 

 brownish - orange ; 3 and 4 with some pale brownish -orange 

 plates: in rootstock of Pteris aquilina ; 7-5, living two years. 



4. H. sylvinus, L. 31-45 mm. Antennae in $ lamellate. 

 Forewings deep ochreous, more or less crimson -tinged, in $ 

 more suffused with fuscous, especially in disc ; a whitish 

 anteriorly fuscous-edged irregular streak from disc at ^ to 

 middle of dorsum, and a straight postmedian streak not reach- 

 ing margins ; an indistinct fuscous discal spot and subterminal 

 shade. Hindwings dark fuscous, towards apex more or less 

 reddish-tinged. 



