CRDESTIS] 



TINEIDAE 



761 



slightly reddish-tinged, towards base and apex whitish-sprinkled; 

 a somewhat curved white fascia before middle, preceded by a 

 darker fascia ; indistinct whitish tornal and opposite costal 

 spots ; 5 and 10 absent. Hindwings grey. 



Britain to Aberdeen, common ; C. Europe ; 6, 7. Larva 

 pale brown, greener dorsally ; head and plate of 2 black : in 

 leaves of Pinus sylvestris ; 3, 4. 



2. C. gysseleniella, Dup. 11-13 mm. Forewings white, 

 irrorated with minute curved dark fuscous marks on scale-tips ; 

 a pale golden -brown fascia near base, and another before 

 middle; indistinct tornal and opposite costal white spots; 5 

 and 10 present. Hindwings pale grey. 



Kent, Norfolk, Westmoreland to Perth, local ; C. Europe ; 

 6, 7. Larva light brown ; head and plate of 2 black : in a 

 loose web amongst leaves of Pinus sylvestris ; 3, 4. 



18. ARGYRESTHIA, Hb. 



Head rough above, face smooth. Tongue developed. An- 

 tennae f , in c serrulate, pubescent, basal joint moderate, with 

 pecten. Labial palpi moderately 

 long, somewhat curved, por- 

 rected, somewhat rough beneath, 

 terminal joint longer than 

 second, pointed. Maxillary 

 palpi obsolete. Posterior tibiae 

 smooth -scaled. Forewings : Ib 

 furcate or simple, 7 and 8 

 sometimes stalked, 7 to termen. 

 Hindwings under 1, lanceolate, 

 cilia 2-3; 3 and 4 connate or 

 stalked or separate, 5 and 6 

 stalked, 7 parallel. 



A characteristically European genus of moderate size, 

 extending also into North America. In repose all the species 

 sit with the hinder part obliquely raised from the surface, so 

 that they appear to stand on their head ; the purpose of this 

 curious attitude does not seem to be known. Imago with 

 forewings lanceolate. Larva feeding within shoots, leaf -buds, 

 fruits, or bark. Pupa in a dense white cocoon. 



1. Forewings unicolorous (and cf. conjugella) . 2. 



,, not unicolorous . . .4. 



2. Head ochreous-yellowish . . 1. illuminatella. 



white or whitish ... 3. 



Neuration and head of Argyresthia 

 nitidella. 



