Mryricx.—On New Zealand Micro-Lepidoptera. 41 
Male, 12-15 mm ; female, 15-16 mm.—Head, palpi, and thorax in male 
whitish-ochreous, ochreous, fuscous, or grey, in female whitish-ochreous ; 
palpi elongate. Antenne whitish-ochreous or greyish, in male sharply 
annulated with dark fuscous. Abdomen whitish-ochreous or grey. Legs 
varying from whitish to dark fuscous. Forewings in male triangular, 
moderate, costa moderately arched, somewhat bent in middle, hindmargin 
almost straight, rather oblique ; in female rather oblong, dilated posteriorly, 
costa strongly arched towards base, sinuate beyond middle, apex somewhat 
produced, hindmargin somewhat sinuate, rather oblique ; in male pale 
whitish-ochreous, whitish-grey, ochreous, fuscous, or dark fuscous-grey, 
more or less distinctly strigulated or reticulated with darker; in female 
whitish-ochreous, reticulated with darker ochreous; one whitish-grey male 
has posterior half of wing reddish-fuscous, and one grey male has whole 
wing except basal patch suffused with blackish-grey ; outer edge of basal 
patch, central fascia, and costal spot generally ochreous-fuscous or fuscous, 
more or less distinctly darker than ground-colour, but sometimes wholly 
obsolete in male; outer edge of basal patch in male from } of costa to 4 of 
inner margin, sharply angulated above middle, in female irregular, from 1 
of costa obliquely outwards, angulated above middle, thence irregularly 
concave, ending in middle of inner margin ; central fascia rather narrow, 
straight, from middle of costa to inner margin before anal angle, generally 
obsolete beneath, posterior edge dilated outwards into an abrupt suffused 
projection above middle ; costal spot in male roundish, sometimes produced 
as a fascia to anal angle, in female flattened semi-oval, often confluent with 
projection of central fascia ; costal space between central fascia and costal 
spot often conspicuously paler than ground-colour : cilia in male whitish 
or whitish-ochreous, basal half blackish-grey, sometimes almost wholly 
blackish-grey, in female whitish-ochreous, towards base dark ochreous- 
fuscous. Hindwings in male varying from grey-whitish to dark grey, when 
light spotted with darker, cilia paler, with a darker basal line; in female 
white, apex very faintly ochreous-tinged, cilia white. 
The variability of this species is extraordinary, the sexes being also very 
different, and the various forms can hardly be included in a single descrip- 
tion. From the preceding species the female is immediately distinguishable 
by the white hindwings and different form, the male by the conspicuous 
dark basal half of the cilia of forewings, the usually perceptible basal patch 
and costal spot, and the much smaller size. 
Larva moderate, cylindrical, slightly tapering at both ends; pale greyish- 
green, spots concolorous ; head pale greyish-ochreous, lateral margins dark 
fuscous, mouth spotted with dark fuscous ; second segment greenish-whitish, : 
with an ochreous-tinged dorsal plate; anal segment greenish-whitish, with a 
