By J.D. Holloway
I spent 4 months in New Caledonia in 1971 with the item of constructing a quantitative survey of the night-flying macrolepidoptera with light-traps and an evaluation of the Rhopalocera and microlepidoptera. This fieldwork was once financed through a central authority Grant-in-Aid for clinical Investigations adminis tered by means of the Royal Society, and by means of a furnish from the Godman Fund. I dedicated a different 3 weeks to sampling on Norfolk I. , and, with assistance from neighborhood naturalists, Mr. and Mrs. F. JOWETT, used to be capable of produce an in depth account of the biogeography and ecology of the moth fauna (HOLLOWAY, 1977). This booklet is an account of the result of the recent Caledonian paintings, including studies of the geology, phytogeography and basic zoogeography pre sented as history for the Lepidoptera fauna and its geography. prior paintings at the macroheterocera, essentially papers via VIETTE (1948- 1971), had recorded now not many greater than 100 species, a truly low overall contemplating the world of the island relative to that of the Fiji crew the place the moths have been being studied via Dr. G. S. ROBINSON while the hot Caledonian day trip was once on the strategy planning stage. The Fijian fauna then promised ponder ably to exceed 300 species. obviously many extra species awaited discovery in New Caledonia.
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Additional info for A Survey of the Lepidoptera, Biogeograhy and Ecology of New Caledonia
Overlying these formations are cherts and limestones. Basalts were discharged in the Palaeocene (Montian) to cover large parts of the western slope of the island, at a time when the opening of the Tasman Sea was ceasing. These basalts are discordantly overlain by greywackes, products of the erosion of complex Eocene fold structures which involved nappe formation on the western side of the island. There was metamorphism in the Late Eocene and the Eocene/Oligocene boundary saw a paroxysm of orogenesis, sediments being folded parallel to the axis of the island.
On this net fall were imposed the eustatic fluctuations caused by the Pleistocene glaciations. Sea-level minima of perhaps 100 m (QUINN, 1972; CHAPPELL, 1974), at most 283 m (STEVENS, 1973), occurred at approximately -20,000 to -16,000 years and at -165,000 years. In Figure 6, based on present day bathymetry, the land exposed by a drop of 100 m is indicated. Archipelagic connections become marked between Australia and New Caledonia, moderate between New Caledonia, Lord Howe I. and New Zealand, and a chain of atolls emerges, extending from the St.
The genus Dysoxylum of the Meliaceae also appeared in New Zealand in the Eocene. It is widespread, centred in Malesia with subcentres in E. Australia and New Caledonia. It is cauliflorous, the strongly scented flowers being attractive to Lepidoptera in New Caledonia, such as the butterflies Delias ellipsis and Hasora khoda (HOLLOWAY & PETERS, 1976) and the sphingid Macroglossum cory thus (p. 356). , indicative of good dispersal powers. In the Oligocene Myrsine (Myrsinaceae), Typha (Typhaceae) and Epilobium (Onagraceae) appeared.
A Survey of the Lepidoptera, Biogeograhy and Ecology of New Caledonia by J.D. Holloway