66 
MICROLEPIDOPTERA OF NEW GUINEA 
crly, terminal segment moderate, tip rounded, slightly roughish in male. 
Thorax without crest. Abdomen in both sexes with a pair of dorso-lateral 
moderate reniform openings on first segment, being terminations of a 
paired abdominal sense organ. Fore wing with a long, smooth costal fold 
in male, 2 from 3 / 5 , 3 from angle, widely remote from 4, (seemingly 
originating from before angle), 4 approximated to 5, 5 and 6 parallel, 7 
and 8 rather short-stalked, 7 to termen, 11 from middle. Hind wing without 
cubital pecten, 2 from 3 / 5 , 3 and 4 connate from angle, 5 closely approx- 
imated at base, 6 and 7 short-stalked. 
Tegumen short, broad. Uncus witli a broad base and a narrow bristled 
hook. Socius small or rather large, appressed to shoulders of uncus, or to 
arms of gnathos. Gnatbos short, curved upward, hook moderate. Transtilla 
strong. Valva simple, elongate-scmiovate, rather short, cucullus bristled, 
sacculus short, sometimes with a small apical projection. Anellus bristled. 
Aedoeagus moderate, little curved; eornuti, a sheaf of spines. 
Genital ventrite dilated, sclerotised. Ostium a wide funnel. Limen rather 
broad, often with rounded lateral lobes below. Colliculum sometimes 
present. No cestum. Ductus bursae narrow, moderately long. Bursa 
copulatrix ovoid; signum, a small thorn, without capitulum. 
Typus generis Tremophora carycina spec, nov., male, female. 
Allied to Taeniarchis Meyrtck but with veins 7 and 8 in fore wing 
stalked. Differing from all other known genera of Microlepidoptera by 
the presence of peculiar abdominal sense organs in the two sexes. The 
significance of these organs is altogether mystifying. It is to be regretted 
that by lack of fresh or correctly fixated material the study of the anatomy 
of these organs did not provide any indications as to their function. 
Key to the species of Tremophora, 
1. Fore wing with ground colour deep ferruginous -brown, sometimes a minute 
dark dot on upper angle of cell in female, and a deep blackish -ferruginous spot 
on end of fold in male 2 
Ground colour and markings not thus 3 
2. Ground colour deeper ferruginous-brown, discal dot in female and dorsal spot 
in male distinct; larger species (22-23 mm) carycina spec. nov. 
Ground colour lighter ferruginous -chestnut -brown, discal dot in female absent, 
dorsal spot in male ill-defined; smaller species (16.5 mm) . alopex spec. nov. 
3. Several pale ochreous-whitish, round dots scattered over wing, a vertical pair 
of dots on dorsum before middle guttulosa spec. nov. 
Not thus ^ 
4. Ground colour bright ochreous-yellow, coarsely retinate with suffused brownish- 
ferruginous strigulae scintillans spec. nov. 
Ground colour yellowish -whitish with fine dense dark ferruginous irroration; 
or reddish-fulvous, finely retinate with pale ochreous . . coniortus spec. nov. 
Tremophora scintillans spec. nov. (fig. 286) 
% 
cJ 19—22 mm. Head pale creamy-ochreous, face whitish. Palpus whitish 
