lyonetia] TINEIDAE ^ 757 



1. L. prunifoliella, Hb. (pculifoliella, Hb.) 9-10 mm. Fore- 

 wings shining white ; sometimes a broad fuscous costal suftusion 

 with two darker sinuations beneath ; an oblique streak from 

 middle of dorsum, a short tornal streak, and about six streaks 

 from posterior half of costa rather dark fuscous ; apex of wing 

 ochreous ; a round black apical dot ; a projecting blackish hook 

 in apical cilia. Hindwings dark grey. 



Northampton (Whittlebury Forest), local; C Europe, Asia 

 Minor; 9, 10. Larva pale green: in blotches in leaves of 

 l)lackthorn and birch ; 7, H. 



2. L. clerkella, L. 8-9 nmi. Forewings shining white, 

 sometimes partly or wholly suffused with fuscous ; a brown or 

 darker fuscous blotch in disc posteriorly ; a bent transverse line 

 beyond this, and three costal streaks connected with an apical 

 spot brown or darker fuscous ; a round black apical dot ; a 

 projecting blackish hook in apical cilia. Hindwings dark grey. 



England, Ireland, rather common ; N. and C. Europe ; 6, 8, 

 10-4. Larva pale green : in long irregular galleries in leaves 

 of apple, hawthorn, birch, etc. ; 5, 7, 9, 10. 



13. rilYLLOCNISTIS, Z. 



Head smooth. Tongue short. Antennae almost 1, in <$ 

 simple, basal joint rather dilated and concave beneath to form 

 a small eyecap. Labial palpi moderate, filiform, drooping, 

 pointed. Maxillary palpi rudimentary. Posterior tibiae with 

 long bristles above, tarsi with bristly hairs above towards base. 

 Forewings : lb simple, 3 absent, 4 absent, 6 and 7 stalked, 7 

 to costa, 8 absent. Hindwings under ^, linear-lanceolate, cilia 

 5 ; transverse vein absent between 2 and 5, 3 absent, 4 absent, 

 5 and 6 stalked. 



Though at present very limited in numbers, the genus 

 extends through the Northern hemisphere and Australia ; it is 

 correlated with the two preceding ; two species only are known 

 in Europe, both of which are fond of frequenting old thatch, 

 from which they may be beaten in abundance. Imago with 

 forewings lanceolate, apex produced. Larva apodal, mining in 

 leaves. Pupa in a cocoon within the mine. 



Forewings with two longitudinal lines from base 1. saligna. 

 ,, without longitudinal lines . 2. snffusella. 



1. P. saligna, Z. 6-7 nnn. Forewings shining white, apical 

 area suft'usedly whitish-ochreous ; two parallel median longi- 

 tudinal dark fuscous lines from base to middle, enclosed space 

 sometimes ochreous-tinged ; a transverse dark fuscous line at |, 



