Micro-Lepido'j)tera from Mauritius and Gliagos Isles. 371 
Tanychastis, n. g. 
Head with appressed scales; ocelli absent; tongue developed. 
Antennae over 1, in ^ simple, basal joint moderate, without pecten. 
Labial palpi long, recurved, second joint with appressed scales, 
terminal joint shorter than second, slender, acute. Maxillary palpi 
very short, filiform, appressed to tongue. Posterior tibiae smooth- 
scaled, with some rough scales towards base above. Forewings with 
2 from towards angle, 7 absent, 11 from before middle. Hindwings 
£-, elongate-ovate, cilia 1J; 3 and 4 connate, 5 somewhat approximated,- 
6 absent. 
Tanychastis lysiyama, n. sp. 
^. 9 mm. Head and thorax dark bronzy-fuscous. Palpi, antennae, 
and abdomen dark fuscous. Fore wings elongate, rather narrow, 
costa anteriorly straight, po.steriorly gently arched, apex rounded- 
obtuse, termen rounded, rather strongly oblique; dark fuscous ; a 
somewhat irregular white transverse line from costa at reaching 
across wing : a fine white inwards-curved line from f of costa to 
tornus, interrupted beneath costa and above toimus : cilia dark 
fuscous, tips whitish at apex. Hindwings and cilia dark fuscous. 
Mauritius; one specimen. 
Ancylometis, Meyr. 
Ancylomctis trigonodcs, Meyr. 
Mauritius; three specimens. In the hindwings veins 
3 and 4 are sometimes coincident, but 5 remains separate. 
Ancylometis dilucida, n. sp. 
^. 16 mm. Head, palpi, antennae, and thorax dark fuscous. 
Abdomen light fuscous, anal tuft ochreous. Forewings elongate, 
costa gently arched, apex obtuse, termen obliquely rounded ; dark 
purplish-fuscous, with a few scattered whitish-ochreous scales : a 
transverse ochreous-yellowish streak about i, suffused posteriori}^ 
angulated near dorsum, sending from its angle an undefined streak 
of whitish-ochreous suffusion to dorsum beyond middle ; an un¬ 
defined patch of blackish suffusion in disc before middle, a smaller 
spot about f (these represent the stigmata), a spot between and 
beneath these, and a spot on dorsum at |, all with some adjacent 
groups of whitish-ochreous or light yellowish scales; a cloudy 
whitish-ochreous transverse mark on costa at |, whence an abruptly 
curved series of scattered whitish-ochreous scales, preceded by some 
blackish suffusion, runs to tornus : cilia fuscous, on basal half dark 
