MICROLEPID OPTERA OE NEW GUINEA 
119 
unfortunately, the distal part of the ovipositor is missing. In M. lacticaput 
and still more so in M. victa, the reduction of this organ is evident: the 
postapophyses are unusually short for the genus and the lobes with their 
sensile hairs and bristles are entirely atrophied. 
We could find no traces of egg-shells around the larvae; apparently they 
were resorbed during the larval development. 
It would be extremely interesting to observe living insects in the process 
of the deposition of larvae. There is little chance in near future to lay hands 
on living material of the Papuan species described below. But more exotic 
species of this extensive group proved to us to have the same singular 
biology. As far no deviations from the common oviposition were ever 
observed in the European species of Monopis. 
The ostium is little modified and concealed by the limen being a moderate 
bilobed plate, bristly at the top. The shape of the colliculum provides 
specific characteristics. Through the mass of the larvae, which we did not 
remove from the mounts, the shape of the bursa copulatrix and of the 
signa was not traceable. 
The genitalia of the four species described are drawn under an equal 
magnification. 
Key to the Papuan species of Monopis 
1. Fore wing with veins 7 and 8 stalked 2 
Fore wing with veins 9 and 10 stalked or connate, 7 and 8 separate 3 
2. A dorsal and a costal pale yellow spots thiantha Meyrick 
A large yellow costal blotch, no dorsal markings . . trapezantha Meyrick 
3. Fore wing with veins 2 and 3 out of 4 hypocliTysct spec. nov. 
Fore wing with vein 2 separate ^ 
4. Fore wing with transverse yellow fasciae: before and beyond middle 5 
Fore wing without a basal or an antemedian fascia, sometimes with a dorsal 
patch by far not reaching costa 6 
5. Head orange-yellow ; first transverse fascia antemedian . crateroxantha Meyrick 
Head pale ochreous -yellow ; first transverse fascia subbasal . congestella Walker 
6. A yellow streak from dorsum beyond base running just below second fourth 
of costa cuspidigera spec. nov. 
Costal spots postmedian 7 
7. Costal spot pear-shaped ochnodelta Meyrick 
Costal spot more or less distinctly triangular or narrowed-trapezoidal 8 
8. Head yellow eudochinc t Meyrick 
Head snow-white or sordid white ® 
9. Costal and dorsal spots sharply edged, veins 9 and 10 stalked 
(trimaculella Snellen) 
Costal and dorsal spots with irregular edges, rather suffused 10 
10. Fore wing with the hyaline discal spot distinctly antemedian 
lacticaput spec. nov. 
Fore wing with the hyaline spot median victa spec. nov. . 
