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The Male Genitalia of the New Zealand Tortricidae. By Alfred Philpott, Hon. Research Student in Lepidoptera, Cawthron Institute, Nelson. [Read before the Nelson Philosophical Society, 4th July, 1928; received by Editor, 6th July, 1928; issued separately, 16th November, 1928.] The named Tortricidae of the world probably now comprise between 1,300 and 1,400 species. To this total New Zealand contributes rather more than 100 forms, all but a few of the 112 described species on our list being endemic. Taking the number of known (named) insects in the world as 471,000 (see Tillyard, Insects of Australia and New Zealand, p. 8), we find that the Lepidoptera represent about 19.5 per cent. of that total. The number of Tortricidae now listed being set down as 1,350 (Meyrick, Genera Insectorum, 1913, tabulates 1,031 species) gives the per centage of this family to the whole of the Order as about 1.5 The proportion of New Zealand Tortricids to the total New Zealand Lepidoptera is about 8 per cent., thus showing that the family is quite well represented specifically. Of the 15 genera found in New Zealand seven are endemic, namely, Ochetarcha Meyrick, Eurythecta Meyrick, Ascerodes Meyrick, Epalxiphora Meyrick, Gelophaula Meyrick, Ecclitica Meyrick, and Philocryptica Meyrick, three, Capua Stephens, Tortrix Linnaeus and Cnephasia Curtis, are practically cosmopolitan, and the remainder chiefly of Australian and New Zealand distribution. During the course of the present study it has become apparent that several species have been heretofore misplaced generically; the necessary nomenclatural changes will be indicated in the body of the paper and will be more formally dealt with in a descriptive paper appearing elsewhere in this volume. Genitalia Characters of the Family. The most recent text-book dealing with the Lepidoptera (Tillyard, The Insects of Australia and New Zealand, 1926) treats the Tortricid groups as forming a section of the super-family Tineoidea. The male genitalia of the Tortricids are, however, of so different a type from those of the Tineoids proper that there seems to be sufficient reason for bestowing on them super-family rank. The development of the socii and transtilla, with the hinged aedeagus, are the chief characters which serve to distinguish the Tortricids, though with the exception of the last mentioned these are not invariably present. The eighth segment is normally unmodified, but occasionally, as in Ascerodes, the tergite may be clothed dorsally with long hair-scales which project above the tegumen. The tegumen is usually moderately broad and does not fuse with the vinculum, but connects membranously with the upper basal angles of the harpes, its lateral extremities being suddenly narrowed and slightly incurved. The uncus is small to moderately large, thus offering a distinction from