m- 



284 LYONETID^. 



similarity. We have only two British species. Of one, Clerckella, 

 the larva has been observed ; it mines in the leaves of a})ple (and, 

 according to Curtis, elm) ; it has sixteen legs ; it quits the leaf 

 when full-fed and spins a silken cocoon, which it suspends in a 

 horizontal position by silken threads. 



1. Clerckella, Limi. S. N. (10), 5-12. 299 (1758); Treit. ; Diip. ; 

 Zell. ; Sta. — cerasifoUella, Hiib. Tin. 190. — Malella, Schr. — autiimnella. 

 Curt, B. E. fo. 284 ; Step. — niveUa, Step. — var. cereeUa, Treit. — semi- 



a-C- aureUa, Step. — Fonscolombella, Dup. Alls anticis albis vel albidis, vel 

 -^ ajiieis, macula disci pone medium loncjitudinuU fusca, striohs costa? pos- 



ticis fuscis in tnaculam fuscam ante apicem decm'rentibus, puncto apicis 

 atro. Exp. al. 4 lin. 



Head white or whitish. Face and palpi white. Antennse fuscous; 

 the basal joint white. Anterior wings white ; beyond the middle is a 

 longitudinal fuscous blotch on the disc, beyond which is a narrow fuscous 

 fascia, followed by three short fuscous costal streaks, which unite with a 

 fuscous blotch ; at the apex of the wing is a deep black spot, from which 

 two short fuscous streaks diverge into the grey cdia. The wings are 

 sometimes entirely of a deep bronzy-fuscous, when, except the apical 

 spot and costal streaks, no markings are apparent, and there are various 

 intermediate varieties. Posterior wings grey, with grey cilia. 



Not uncommon in many places ; appearing in June and August, 

 and hybcrnated specimens in the spring. The larva makes long 

 tortuous flat mines in the leaves of apple-trees in July, September, 

 and October, 



2. padifoliella, Sta. Zool. 1848, p. 2100 ; Hiib.? Treit.? Bouehu? 

 — acerfoliella. Curt. — albella, Evers.? Alis anticis niveis, villa lata 

 costali fusca, dorsum versus sinuata et saturate fusca, striga obliqua pone 

 medium dorsi apicem versus producta saturate fusca, puncto apicis atro 

 caudulam emittente. Exp. al. 4i bn. 



Head, face, and palpi white. Antenna) fuscous ; the basal joint 

 white. Anterior wings snowy-white, along the casta broadly fuscous; 

 this fuscous streak is, towards the inner margin, sinuated, and is here 

 very dark fuscous, much darker than on the costa; beyond the middle 

 of the inner margin is a dark fuscous streak, which runs oblicpiely to- 

 wards the apex of the wing ; at the anal angle is a small dark fuscous 

 patch ; at the extreme apex is a deep black spot ; costal cilia whitish, 

 with four short fuscous streaks, the last of which is also continued 

 through the cilia of the hinder margin ; there is a dark fuscous arch 

 round the apical black spot, whence a dark fuscous hook also arises. 

 Posterior wings grey, with paler cilia. 



This elegant little species has only hitherto occurred among 

 maple, at Whittlebury i'orest, in Sej)tember and October. 



