684 TINEINA [antjspila 



species. Imago with forowings lanceolate. Larv^a almost apodal, 

 mining in leaves. Pu])a in an oval case cut out from the leaf. 

 The imagos fly in sunshine. 



Posterior costal spot triangular . .1. xifeifftrella. 



,, ,, transverse-oblong . 2. treitschkiella. 



1. A. pfeifferella, Jib. 8-9 mm. Head dark bronzy-fuscous. 

 Foi-ewings dark coppery-bronzy -fuscous ; a slender fascia before 

 middle, a triangular tornal spot, and a triangular costal spot 

 beyond it pale golden-metallic. Hindwings dark grey. 



England to York, common ; C Europe, Asia Minor ; 5. 

 Larva very pale greyish -green ; head and plate of 2 pale 

 brown: in blotches in leaves of Cornus ; 7, 8. Pupal change 

 in autunni ; case subterranean. 



2. A. treitschkiella, F.R. G mm. Differs from A. jifeijferella 

 as follows : forewings with markings yellower-tinged, costal spot 

 more transverse-oblong, not triangular. 



England to York, local ; C. Europe ; 6. Larva grey-whitish ; 

 head and ])late of 2 black; 3-12 beneath each with a black 

 dot: in blotches in leaves of Cornus; 8, 9. Pupal change in 

 spring; case on surface of ground. 



17. AUGASMA, 7/^'. 



Antennae f , in S thick, simple. Labial palpi short, drooping, 

 filiform, pointed. Posterior tibiae rough-haired. Forewings : 

 lb furcate, 3 absent, 5 absent, 6 and 7 stalked, 7 to costa, 8 

 absent. Hindwings |, lanceolate, cilia 3 ; transverse vein partly 

 absent, 4 absent, 6 absent. 



Only the one species is known ; its exact affinities are 

 obscure. The larva is remarkable as being a true gall-pro- 

 ducer. Imago with forewings elongate-lanceolate, costa notably 

 subconcave. 



1. A. aeratellum, Z. 9-10 mm. Forewings dark bronzy, 

 with coj)])ery reflections. Hindwings rather dark fuscous. 



Kent, Surrey, Essex, local ; Germany, Austria, Ital}', Asia 

 Minor ; 6, 7. Larva pale yellowish ; head and two spots of 2 

 pale brown : in small podlike galls amongst flowers of Polygonum 

 avicidare ; 9-4. The galls are produced by the action of the 

 larvae themselves, and are not the work of other insects. 



18. DOUGLASIA, »S'^^ 



Antennae |^, in S simple. Labial palpi short, porrected, 

 tolerabl}' filiform, pointed. Posterior tibiae rough -haired. 

 Forewings : lb furcate, 5 absent, G and 7 stalked, 7 to costa. 



