MICRO LEPIUOPTERA OF NEW GUINEA 
45 
Zacorisca thiasodes (Meyrick, 1910) (figs. 19, 24, 26, 31) 
Atteria thiasodes Meyrick, 1910, Proc. Linn. Soc. N.S. Wales, vol. 35, p. 
221 — 222 . 
Megalodoris thiasodes Meyrick, 1912, Lepid. Catal., vol. 10, p. 15; Gener. Ins., 
vol. 149, p. 21, 1912; Exot. Microl., vol. 1, p. 5, 1912. 
Megalodoris lamprostola Durrant, 1915, Brit. Omit. Un. & Woll. Exp., vol. 1, 
p. 153; syn. nov. 
Distribution.: British New Guinea: Biagi, Mambare River, 5000 feet; 
Aroa River; Base Camp. Netherlands New Guinea, Fakfak. 
A series of both sexes in excellent condition reveals that the female 
insect described by Meyrick as the female of the present species belongs 
to an other distinct species, which has been redescribed under the new 
name of toxopei Diakonoff. The true female of thiasodes was described by 
Durrant under the name of lamprostola, which, therefore, is a synonym. 
The present species may be redescribed as follows. 
£ 29.5 mm, $ 34 — 37 mm. Head and thorax deep greenish-blue, shining, 
in male lower part of face, a minute tuft pressed between bases of antennae 
on vertex, and scape of antenna below, white. Palpus deep greenish-blue 
in male, blackish -purple with bluish shine in female. Antenna with 
flagellum blackish in male, suffused laterally with whitish-grey in female. 
Abdomen deep purple-blue, in female more violet tinged, anal tuft in male 
shining pale ochreous, corethrogyne dull pale ochreous, laterally some- 
what greyish-tinged. Legs black, in male with deep purple-bluish shine, 
in female with purple gloss. Fore wing elongate-subtruncate, costa 
strongly arched anteriorly, apex rounded, termen slightly sinuate above, 
rounded beneath. Basal area light orange-yellow, terminal area bright 
orange-yellow, markings deep bluish-purple in male, deep purple in female. 
Costal fold broadly semiovate to about 1 / G of costa, abruptly strongly 
narrowed thence, reaching beyond middle of costa. A short narrow streak 
along base of wing and of costa; a broad transverse fascia, in male some- 
what narrower, with edges tolerably parallel, anterior in male from beyond 
1 / 1 of costa, in female from J / 4 or from slightly before 1 / s of costa, to beyond 
3 / s of dorsum, concave throughout, much more so in female, especially 
along upper half (in one female specimen narrowly connected along costa 
with basal streak); its posterior edge from slightly beyond middle of 
costa to dorsum just before tornus, in male almost straight along upper 
third, faintly excavate in middle and with a broadly rounded slight 
projection at 3 / 4 ; in female almost straight to below middle, without- 
excavation, stronger rounded and projecting at, or below, 3 / 4 ; apical patch 
in male extending over 1 / 5 of costa, its posterior edge regularly convex, 
to termen just above middle; in female extending over r / 5 of costa, with 
edge regularly sinuate, to termen above tornus. Cilia dark grey, orange- 
yellow in tornus. Hind wing deep purple or purple-violet with a deep 
orange terminal fascia, mostly somewhat clouded with blackish-fuscous, 
