302 e NEPTICULID. 
fuscis, fascia fusca paullo post medium, fasciam totam luteam preece- 
dente ; capillis luteis. Exp. al. 23-3 lin. 
Head and face bright luteous. Palpi whitish. Antenne fuscous, 
basal joint whitish. Anterior wings yellowish, sparingly irrorated with 
Juscous towards the base ; the fuscous scales form a fascia a little be- 
yond the middle, which immediately precedes an uninterrupted fascia 
of the ground-colour ; the apical portion of the wing is entirely fuscous, 
with a faint violet tinge; cilia whitish-yellow. Posterior wings pale 
grey, with pale grey cilia. 
Appears in May and August. The moderate-sized yellowish 
larvee make dread tortuous galleries in the leaves of the nut and 
hornbeam, occurring in autumn and July; there are rarely more 
than half-a-dozen in one leaf. 'The cocoon is very flossy, and of a 
whitish or pale yellowish colour. 
18. Salicis, n. sp. lis anticis fuscis, dilute luteo parum irroratis, 
postice saturatioribus et violaceo-tinctis, maculis duabus dilute luteis 
pone medium, fasciam obsoletam obliquam formantibus ; capillis ferru- 
gineis, Exp. al. 23-3 lin. 
Head and face reddish-yellow. Palpi whitish. Antenne fuscous, 
basal joint whitish. Anterior wings fuscous, slightly irrorated with pale 
luteous, posteriorly darker and with a faint violet tinge; beyond the 
middle are two ill-defined, pale luteous spots, forming an indistinct oblique 
fascia ; the costal spot is anterior to the dorsal spot; cilia pale luteous. 
Posterior wings pale grey, with pale grey cilia. 
Appears in May and August. ‘The yed/owish larva makes small 
tortuous mines, resembling blotches in the leaves of sallows in 
autumn and in July. 
19. microtheriella, Wing, n. sp. lis anticis fuscis, paullulum 
purpureo-tinctis, precipue apicem versus, fascia tenui, subobliqua pone 
medium addida ; capillis luteis, fusco-mixtis. Exp. al. 14 lin. 
Head and face yellowish, slightly mixed with fuscous. Palpi whitish. 
Antenne fuscous, basal joint whitish. Anterior wings fuscous, slightly 
tinged with purple, especially towards the apex; beyond the middle is 
a slightly oblique, rather slender whitish fascia; cilia fuscous. Pos- 
terior wings grey, with paler cilia. 
The smallest known Lepidopterous insect! Appears in May 
and August, but rarely met with in the perfect state; the smadZ 
yellowish-green larva makes eatremely narrow tortuous galleries 
in the leaves of the nut and hornbeam, occurring in autumn and 
July. It is sometimes so abundant that upwards of thirty may 
be found in a single leaf! The rather jirm cocoon is of a pale 
buff’ colour. 
20. ignobilella, Sta. Cat. p. 29 (1849).—aurella, var. B. Haw. ? 
—posticella, Step.? Alis anticis dilute aurco-brunneis, apicem versus 
