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. 



Antenna? 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., Eeise der 



Novara, PI. CXXXVIL, 27.) 



Male, female. — 17-18^ 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 XDalpi pale greyish-ochreous, mixed on side with dark fuscous, and 

 above and internally with white. Antennae 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 tibiae 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 scales ; veins on basal half of wing marked by white lines ; some 

 whitish scales towards basal third of costa ; a short suffused white streak 

 along costa beyond middle ; a very inwardly oblique white line from costa 

 at f to submedian fold near base, obliterated on veins, only distinct at 

 extremities ; a straight double white line from middle of costa to before 

 middle of inner margin ; a blackish 8-shaped mark in disc 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 disc ; a strongly outwards- 

 curved double white line from £ of costa to f of inner margin, inner edge 



