isciinosoia] 



37. ISOHNOSOIA, n.rj. 



Head rough. Tongue developed. Antennae 1, in $ simple, 

 basal joint without peoten. Labial palpi rather long, por- 

 rectcd, second joint with apical bristles above and beneath, 

 terminal joint pointed. Maxillary palpi long, filiform, folded. 

 Posterior tibiae smooth -scaled. Forewings: lb furcate, 5 

 absent, 7 to costa, 8 absent, 10 absent. Hiudwiugs §, 

 lanceolate, cilia 3 ; cell open between 4 and 5, 5 and C 

 approximated. 



Only the following species is at present known ; it is a 

 development of Tinea. Imago with forewings elongate, narrow, 

 pointed. 



1. I. subtilella, Fvehe. 6-8 mm. Head whitish-ochreous. 

 Forewings pale whitish-ochreous ; a grey apical dot. Hind- 

 wings ochreous-grey-whitish. 



Dorset (Portland), amongst rocks, local ; Germany ; 7, 8. 



38. PiiYLLoroiUA, J/iin. 



lb-ad rough. Tongue rudimentary. Antennae |, in 3 

 shortly ciliated, basal joint without pecten. Labial palpi 

 moderate, porrected, second joint with apical bristles, ter- 

 minal joint poiuted. Maxillary palpi long, filiform, folded. 

 Posterior tibiae hairy. Forewings: lb furcate, 5 absent, 7 to 

 costa, 9 absent. Hindwings under 1, elongate-ovate, cilia 1£; 

 all veins separate. 



Contains at present only the following species ; derived from 

 Tinea. Imago with forewings elongate, tolerably pointed. 

 Larva tapering posteriorly, segments incised, legs hardly de- 

 veloped, mining in leaves. Pupa in an oval case cut out from 

 the leaf, on the ground. 



1. P. bistrigeila, lln: (subammanella, Stt.) 7-8 mm. Mead 

 oeln-eous- fuscous. Forewings fuscous; a straight shining 

 whitish fascia at J, and another sometimes interrupted beyond 

 middle J sometimes a whitish elongate diseal spot beyond this. 

 Hindwings grey. 



Britain to the Clyde, local ; N. Europe, Germany; 6. Larva 

 pale yellowish ; head pale brown : in a gallery terminating in a 

 blotch in leaves of birch ; 7, 8. 



39. Monopis, Hb. 

 Head rough. Tongue developed. Antennae \-%, in <J 

 simple or ciliated, basal joint, with small pecten. Labial 



