30 
MICROLEPIDOPTERA OF NEW GUINEA 
whitish, first tuft with a grey longitudinal median streak, posterior half 
of segment fuscous-grey becoming blackish towards base, tufts and apex 
narrowly edged with white, terminal segment blackish with an oblique 
transverse median white line extending over tuft, tip of tuft white. Legs 
pale grey speckled with dark fuscous, anterior tibia and tarsus black, 
white-ringed, median and posterior tibia with a median and subapical 
black band, median and posterior tarsus white with two rings and a black 
apical fourth. Fore wing broad, triangular, costa and termen rather 
rounded, apex obtuse. Grey, along costa and more so along termen suffused 
with dark brownish-fuscous, finely irrorated throughout with whitish, 
giving rise to ill-defined transverse bands; white costal dots: at 1 / 3 , at 3 / s 
and just before apex, and three minute equidistant white points along 
basal third of costa; a transverse band from first costal dot, narrow 
above, abruptly dilated and becoming ill-defined at x / 3 , apparently to 1 j z of 
dorsum; a broad transverse band from below second costal dot and 
confluent with it, to dorsum before tornus, its posterior edge traceable, 
regularly strongly convex; an elongate patch of whitish irroration from 
beyond second fourth of this band to apex; costal area except at 1 / 4 , and 
terminal area, not irrorated with whitish; a transversely elongate spot in 
apex continued as a minute terminal line: brownish-fulvous. Cilia dark 
grey, basal third fuscous-black, posterior two thirds irregularly barred 
with whitish, except opposite tornus, where the cilia are entirely black. 
Hind wing dark brownish-fuscous, a streak along s / 4 of costa whitish, 
coarse whitish scales scattered towards apex and upper third of termen 
and along upper tlrird of terminal edge. Cilia whitish becoming grey 
along lower third of termen and on dorsum, throughout with a broad 
blackish basal band. 
Tegumen weak, broad, narrowed and weakly bristled. Uncus, gnathos, 
transtilla absent. Valva elongate, concave, cucullus with strong bristles 
directed basad ; sacculus moderate, with a patch of strong bristles beyond 
base. Vinculum broad, semicircular. Anellus a weak tube. Aedoeagus 
rather short, top curved. (Slide no. 1046 D, type.) 
Sigi Camp, 1500 m, February 20, 1939. One specimen. An obscure 
species, perhaps allied to C. streptatma Meyrick, from Papua. 
ELACHISTIDAE 
Key to the Papuan genera of Elachistidae 
1. Fore wing with vein 8 out of stalk of 6 + 7 Cosmiotes Clemens 
Fore wing with vein 6 out of stalk of 7 + 8 .... Elachista Treitschke 
Cosmiotes Clemens, 1860 (fig. 745) 
Cosmiotes Clemens, 1860, Proc. Acad. Nat. Sci. Phil., 1860, p. 8. Braun, Mem. 
Amer. Ent. Soc., No. 13, pp. 6, 7 (keys), 89-91 (redescr.), figs. 16, 16a, 16b (neur.), 
56, 56a, 57a (<$ gen.), 103, 103a, 104, 105 ($ gen.), 1948. 
