8 . Transactions.—Zoology. 
Nearest to T. impletella, Walk., and T. longipalpella, Meyr., and somewhat 
intermediate between these two species, but not capable of confusion with 
them or any other; the black markings towards base are a sufficient dis- 
tinction. 
. I have only met with this species in one place on the grassy volcanic 
hills near Christchurch, where it was sufficiently common in March. 
2. CRYPTOMIMA, n. g. 
Antenne of male shortly ciliated. Labial palpi long, attenuated. Fore- 
wings broad, surface with tufts of raised scales; with 12 veins, 8 and 9 
stalked. Hindwings with 8 veins, 4 and 5 stalked, 6 widely remote at 
origin from 7, 7 and 8 stalked, cell closed. 
Nearly allied to Thinasotia, from which it can only be distinguished by 
the tufts of scales on the forewings, though in superficial appearance and 
habit very dissimilar ; in these respects it approaches Diptychophora, but 
differs considerably in venation. The larva probably feeds on moss or 
lichens. The genus is probably confined to New Zealand; I have only 
one species. 
1. Crypt. acerella, Walk. — 
(Gadira acerella, Walk., Brit. Mus. Cat. Suppl., 1742; Botys mahanga, Feld., Reise der 
Novara, Pl. CXXXVII., 27. 
Male, fenale.—17-181 mm. Head light greyish-ochreous, mixed with 
white on crown, with a white stripe along anterior margin of eyes. Maxil- 
lary palpi pale greyish-ochreous, with a dark fuscous band, apex white. 
Labial palpi pale greyish-ochreous, mixed on side with dark fuscous, and 
above and internally with white. Antenne pale greyish-ochreous. Thorax 
pale ochreous mixed with dark fuscous, and on back with white. Abdomen 
ochreous-whitish, suffused with ochreous-fuscous except at apex of segments. 
Legs dark ochreous-fuscous, middle and posterior tibiæ banded with ochreous- 
whitish, all tarsi with ochreous-whitish rings at apex of joints. Forewings 
broad, triangular, costa at first straight, slightly sinuate in middle, strongly 
arched towards apex, apex obtuse, hindmargin sinuate above and again 
below middle, moderately oblique; dull ochreous-fuscous, with scattered : 
black seales; veins on basal half of wing marked by white lines; some 
whitish seales towards basal third of costa; a short suffused white streak 
along costa beyond middle; a very inwardly oblique white line from costa 
at $ to submedian fold near base, obliterated on veins, only distinet at 
extremities ; a straight double white line from middle of costa to before 
middle of inner margin; a blackish 8- shaped mark in dise beyond middle, 
upper half containing a spot of ground-colour, lower half a clear white spot; 
a ridge-like tuft of raised scales below middle of dise; a strongly outwards- 
curved double white line from ł of costa to ł of inner margin, inner edge 
