MICROLERIDOPTERA OF NEW GUINEA 
143 
Elasmion Hubner, 1806, Tentamen, p. 2 ( non descr.). 
Eutyphia Hubner, .1826, Verz. Eur. Schett., p. 416. 
Epityphia Hubner, 1826, ibidem , p. 416. 
Nemotois Hubner, 1826, ibidem, p. 416. 
Nematophora Agassiz, 1846, Nona. Zool. Lep., vol. 46, Ind. Univ., p. 247. Ibidem, 
8th edit., pp. 713—714, 1848. 
Nematois Walsingham, 1858, Oxf.-Cambr. Acc. List Brit. Lep., p. 81. Etc. 
Ucetia Walker, 1866, List Lep. Het. B. M., vol. 35, p. 1820. 
The genitalia of the British representatives of this genus are described 
and figured by Pierce (Genii. Brit. Tineina, p. 109, pi. 66, 1935), but his 
figures are rather simplistic and the aedoeagus is reproduced erroneously. 
The genitalia of the Indonesian species were treated recently (Diakonoff, 
Treubia, vol. 21, p. 174 et seq., 1951). 
Tegumen short, broad. Uncus rounded, cap-like, ventral edge slightly 
emarginate. Socii rounded, pending pads. Gnathos strong, united, narrow, 
with a short rising point in middle, strongly dilated towards extremities. 
Valva cardinate, apparently but little articulated. Aedoeagus, a narrow 
long and strong rod, sometimes furcate or finely spinose and with a few 
short spines towards orifice, vesica with a single and most peculiar cor- 
nutus: arrow-shaped and not retractile, but folding like a pen-knife in 
the body behind the saccus. Anellus small. Saccus very large, concave, 
tapering rostrad. 
When the aedoeagus is extruded before the copulation the arrow- 
shaped cornutus apparently unbends and serves as an anchor in the female 
genitalia. It seems that this arrow can be removed again, and is not 
thrown off in the bursa copulatrix, as it was present in all the male 
specimens studied by us. 
Specific differences of the genitalia are slight and difficult to describe. 
Key to the Papuan species of Nemophora 
1. A fasciate postmedian orange costal patch not reaching dorsum 2 
A complete postmedian orange fascia 4 
2. Postmedian orange patch dilated below; eyes in male contiguous 
cyanochrysa Meyrick 
Postmedian orange patch narrowed below ; eyes in male separate 3 
3. Postmedian orange patch connected with dorsum by a black streak .... 
projusella Walker 
This patch not connected with dorsum photodoxa Meyrick 
4. Basal patch and postmedian fascia separated by a straight, direct fascia of 
ground colour hippophylax Meyrick 
Basal patch and postmedian fascia separated by a broad fascia of ground colour, 
more or less curved outward, and distinctly dilated towards dorsum ... 5 
5. Eyes in male separate; frons black; postmedian fascia on costa twice as narrow 
as the preceding fascia of ground colour chrysorrhabda spec. nov. 
Eyes in male contiguous; frons ochreous; postmedian fascia on costa broader 
than the preceding fascia of ground colour homoeotropa spec. nov. 
