32 Transactions.—Zoology. 
Forewings moderate, considerably dilated posteriorly, costa gently arched, 
in male more strongly, apex acute, hindmargin sinuate, oblique ; whitish- 
ochreous, irregularly irrorated with fuscous, sometimes wholly suffused 
with ochreous-fuscous ; costal edge suffusedly dark fuscous; a straight 
narrow somewhat irregular dark fuscous fascia from + of costa to + of inner 
margin, dilated on margins; a round dark fuscous dot towards costa in 
middle, and another (sometimes two longitudinally placed) above fold in 
middle; a short linear dark fuscous transverse mark in dise beyond middle ; 
a narrow dark fuscous fascia from $ of costa to $ of inner margin, rather 
acutely angulated outwards above middle, dilated on costa: cilia dark fus- 
cous. Hindwings in male rather light grey, with a darker central lunule, 
cilia whitish-grey ; in female whitish, posteriorly slightly ochreous-tinged, 
cilia ochreous-whitish. 
This species and the preceding form the transition in the shape of the 
forewings from the rounded to the subfalcate apex. It varies considerably 
in depth of colour, but the characteristic fascia can generally be made out. 
Christchurch and Akaroa, from January to March; not uncommon 
amongst bush. 
33. Gymn. hyetodes, n. Sp. 
Media, alis ant. M. fuscis, F. ochreo-flavis, punetis disci tribus obscuris 
fasciaque postica recta nebulosa saturatioribus; post. M. saturate griseis, 
F. ochreo-flavis. 
Male. —20 mm. Head and thorax greyish-fuscous. Palpi whitish, 
anterior edge marked by a sharp black line throughout, second joint also 
with a black stripe on each side. Antennæ dark fuscous. Abdomen fus- 
cous-grey. Legs dark fuscous, apex of tarsal joints whitish, posterior 
tibie grey. Forewings moderate, considerably dilated posteriorly, costa 
moderately arched, apex acute, hindmargin sinuate, rather strongly oblique ; 
light fuscous, paler posteriorly, irrorated with darker; an indistinct darker 
dot in disc before middle, and a second rather obliquely beyond it on fold ; 
a cloudy dark fuscous transverse fascia from 2 of costa to $ of inner margin, 
obsolete on margins, posterior edge tolerably well-defined, slightly concave, 
anterior edge suffused, containing an obscure darker dot in disc: cilia with 
basal half dark fuscous, apical half whitish-ochreous. Hindwings dark 
fuscous ; cilia dark fuscous, tips paler. 
Female.—26 mm. Similar to male, but head, thorax, abdomen, poste- 
rior tibise, forewings, and hindwings with fuscous colour wholly changed to 
golden-ochreous. 
I have little hesitation in uniting these sexes ; although at first sight 
very dissimilar, the difference is of ground-colour only, and I suspect that 
the yellow tints of the female are protective, approaching those of a decaying 
