ARGYUESTHIA] TINE1DAE 767 



22. A. semitestacella, Curt. 12-13 mm. Head yellowish- 

 white. Forewings light ferruginous -brown, faintly 'purplish- 

 tinged ; a thick whitish dorsal streak to torn us, interrupted 

 by a dark ferruginous-brown triangular median spot. Hind- 

 wings grey. 



Britain to the Clyde, common ; C. Europe ; 8, 9. Larva in 

 shoots of beech ; 5, 6. 



19. ZBLLBRIA, Stt. 



Head rough, tufted between antennae, face smooth. Tongue 

 developed. Antennae |-|, in <J simple, basal joint moderate, 

 with pecten. Labial palpi moderately long, somewhat curved, 

 drooping, somewhat loosely scaled beneath, terminal joint 

 usually longer than second, sometimes more rough -scaled, 

 tolerably pointed. Maxillary palpi obsolete. Posterior tibiae 

 smooth -scaled. Forewings: Ib simple or furcate, 4 and 5 

 sometimes stalked, 7 to termen. Hindwings 4~1> lanceolate, 

 cilia 1J-2J ; 4 absent, 5 and 6 rather approximated. 



A small but nearly cosmopolitan genus, correlated with the 

 preceding ; more species are at present known from Australia 

 than from any other region. The attitude of the imago in 

 repose resembles that of Argyresthia, but is less pronounced. 

 Imago with fore wings elongate, narrow, pointed. Larva 

 slender, active, in a web amongst leaves. Pupa in a dense 

 white cocoon. 



1. Forewings reddish-brown . .1. heparieda. 



,, more or less whitish . . .2. 



2. Forewings with distinct dark costal antemedian spot 



2. fasciapennella. 

 ,, without such spot . . 3. saxifragae. 



1. Z. hepariella, Stt. (insignipennella, Stt.; fusca, Stt.) 10-13 

 mm. Head varying from reddish-brown to ochreous-whitish. 

 Forewings red-brown, sometimes suffusedly irrorated with dark 

 fuscous, towards dorsum sometimes obscurely paler; second 

 discal stigma sometimes obscurely dark fuscous. Hindwings 

 dark grey, lighter anteriorly. 



Britain to Perth, local and not common ; C. and SE. 

 Europe; 8-4. Larva light green; dorsal line dark green; 

 head yellowish-brown : in shoots or amongst spun leaf-tips of 

 ash ; 6. 



2. Z. fasciapennella, Stt. 15-18 mm. Head light fuscous, 

 mixed with whitish. Forewings light grey, irrorated with 

 whitish ; four longitudinal series of black dots, uppermost only 



