MICROLEPIDOPTERA OF NEW GUINEA 
19 
Callartona Hampson, 1893, Fauna Brit. India, Moths, vol. 1, p. 233. 
Scaptcsylix Hampson, 1895, Trans. Ent.. Soc. Lond., 1895, p. 283 
Sthenistis Hampson, 1896, Fauna Brit. India, Moths, vol. 4, p. 541. 
Hyperperissa Walsingham, 1900, Cat. Lep. Het. Mus. Oxon., vol. 2, p. 546. 
Pseudotortrix Turner, 1900, Trans. Roy. Soc. S. Austral., vol. 24, p. 15. 
When regarded in the sense of Meyrick this genus consists of numerous 
heterogeneous species from many regions. Dr. Clarke, tvho recently 
undertook a revision of Meyrick’s types in the British Museum, informed 
us that the conception of that author is no longer tenable and that Imma 
will have to be split in several distinct genera. Awaiting the opportunity 
of a revision of this group we put the following species, however hetero- 
geneous, in the genus Imma, sensu Meyrick, for the time being. 
For the same reason we prefer to postpone giving a key to the Papuan 
species till a following opportunity. 
Imma niphopelta Meyrick, 1930 
Imma niphopelta Meyrick, 1930, Exot. Microl., vol. 4, p. 4. 
Imma niphopelta lutescens subsp. nov. 
$ 22.5 mm. Palpus yellow with dorsal half of median segment and 
terminal segment entirely dark greyish-fuscous. Fore wing dark purplish- 
fuscous, with costal edge indistinctly greyish anteriorly; the collar and a 
submedian longitudinal streak yellow; shining metallic markings above 
the latter streak consisting of a narrow interrupted subcostal streak from 
base to before middle, of a moderately broad streak from above middle of 
base, somewhat dilated, curved upward posteriorly and merging in the 
former before its apex, and of a small spot halfway between middle of 
submedian yellow streak and dorsum; cilia greyish-tawny tinged lilac, 
basal third dark purplish-fuscous. Hind wing with costal band of black 
scaling dilated as far as the parting vein, posteriorly reaching to the 
closing vein ; vein 4 with thicker scaling, which is triangularly dilated 
towards closing vein and marginal band. 
Araucaria Camp, 800 m, March 19, 1939. One specimen. Differs from 
the nominate form by a yellow, instead of a white median streak, by the 
greyish-tawny, instead of white cilia, and a paler ground colour in the 
fore wing. 
Imma aristogiton spec. nov. (fig. 736) 
&qiotoq = noble, ydriav = neighbour 
rj 16 mm. Head, vertex fuscous-grey with lilac gloss, face pale yellowish- 
ochreous. Antenna fuscous, scape and base of flagellum yellow below. 
Palpus ascending, densely scaled with smoothly appressed scales, con- 
