THE CANADIAN ENTOMOLOGIST 189 



although the genus in its present form has acquired a number of 

 specialized characters. 



The neuration of the fore wings in the three genera just 

 mentioned can easily be derived fron that of Corythophora. The 

 absence of vein 11 is not significant, but is of recent disappearance, 

 as it is virtually absent in one species of Proleiicoptera while present 

 in the other, and thus can not be considered as a character of im- 

 portance. However, the fact that vein 4 is here present and oc- 

 cupying its normal position would suggest that a slightly different 

 interpretation should be put upon the venation of Proleiicoptera, 

 ^'iz., that vein 3 is absent and not 4, as stated by Mr. Busck in his 

 characterization of that genus. 



The derivation of the neuration of the hind wings of the 

 \-ounger genera from this type is not so obvious. However, the 

 examination of the hind wing of Proleiicoptera smilaciella Bsk. 

 discloses a feature hitherto overlooked, which shows clearly its 

 origin from the present genus. As shown in the accompanying 

 figure (Fig. 2), veins 5 and 6 are stalked from the base and distinctly 

 separate from 7 toward base, but almost anastomose with it 

 along the middle of the wing, becoming separate again where 

 they branch. 



Its affinities with Tineid stock are at once apparent; in fact, 



its neuration closely approaches 

 that of some of the Tineid 

 genera. This furnishes strong 

 confirmatory evidence of the 



Fis;. 1"J. — Hind wing of Prolcucof^tera smilaciella , r i • r ,1 



descent ot this group trom the 

 Tineidci\ from which it has been regarded as derived. 



Corythophora aurea, n. sp. 



Head and appendages very pale yellow, flap of scales on basal 

 segment of antennae somewhat deeper yellow. 



Thorax pale yellow or white, patagia golden yellow. Fore 

 wings golden yellow, deepening toward the apex, where the colour 

 is deep orange. Costal margin from l/5 to just beyond the begin- 

 ning of the cilia, and dorsal portion of the wing below the fold, 

 pale yellow, fading almost to white on the extreme margins. 



