Meyrjck. — On New Zealand Micro-Lepidoptera. 141 



Art. XIII, — Descriptions of New Zealand Micro-Lepidoptera. 



By E. Meyrick, B.A. 

 [Read before the Philosophical Institute of Canterbury, 2nd October, 1884.] 

 VII. TOBTBICINA.— (Supplementary). 

 This paper is supplementary to that which I published on the Tortricina 

 in the Transactions for 1882. It contains nine additional species, of which 

 eight are new, the ninth having been previously known from the Hawaiian 

 Islands ; and also some corrections of classification. 



I propose to recast the definitions of the TortricidcB and Grapholithida 

 thus : — 



Tortricidce: Lower median veins of hindwings almost always without 

 basal pectination ; vein 2 of forewings rising before posterior third of lower 

 margin of cell ; genital uncus of male developed. 



GrrapholithidcB v .Lower median vein of hindwings pectinated with hairs 

 towards base ; vein 2 of forewings rising before posterior third of lower 

 margin of cell ; genital uncus of male not developed. 



I am indebted to Professor Fernald, well known as a special authority on 

 this group, for the information on which this change is founded. He 

 states that the genital uncus never occurs in the Grapholithida, and con- 

 siders that such genera as Ctenopseustis, hereafter described, should be 

 therefore referred to the Tortricidm ; which amounts to saying that the 

 possession of the uncus is a more valuable systematic character than the 

 possession of the basal pectination. As Professor Fernald has devoted much 

 labour to the investigation of material from all parts of the world, there is 

 little doubt that he is correct, and I have adopted his suggestion. I have 

 not yet found leisure to examine the genitalia of all the Tortricina of this 

 region, but I have investigated a few species, which appear to confirm his 

 views ; and in the case of the Pyralidina I have found the same character 

 valuable for family separation. The genital uncus (when present) is a hard 

 cylindrical, more or less downwards-hooked, process from the apex of the 

 abdomen in the male, and in some groups of Lepidoptera assumes complex 

 forms. 



The occurrence of the Hawaiian Chiloides straminea is interesting, and 

 may be compared with the presence of the genus Heterocrossa in both 

 regions. Probably they extend over the intervening space, but I have not 

 at present any evidence of this. The other additional species are all of 

 genera already recorded from New Zealand, and mostly interesting as repre- 

 sentatives of the old indigenous fauna. It seems probable that Proselena, 

 Harinologa, and Heterucrossa will be found to be richer in species than I had 

 previously anticipated, I think that Caccecia alopecana is also peculiarly 



