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The scale of measurement given in descriptions of new species is from
the centre of the thorax to the forewing apex.
Information on habitat preference has been gained almost entirely from
light trap surveys of G. Kinabalu (Holloway, 1976), the G. Mulu National Park
(Holloway, 1984a, 1989) from collections made by Col. M.G. Allen and colleagues
in Brunei, by W. Boyd-Wallis in Kalimantan and by A.H. Kirk Spriggs (National
Museum of Wales) in Sabah. Additional data on the fauna of softwood plantations
and material from the Forest Research Centre Collection, Sepilok, have kindly
been made available by Mr Chey Vun Khen of the Sabah Forest Department, together
with some life history data (Chey, 1994). Similar data for Peninsular Malaysia
have been made available by the Forest Research Institute of Malaysia (FRIM).
Broad vegetation categories were discussed in Part 4 of this series.
Data on geographical range are mainly from the collections of The
Natural History Museum (BMNH), but with some data on the Sumatran fauna has been
made available through the collecting activities of Dr E. Diehl and other
members of the Heterocera Sumatrana Society. Data for Peninsular Malaysia are
supplemented from the collections of Mr H.S. Barlow and FRIM, the latter
particularly through recent surveys conducted by Miss J. Intachat, and those for
the Philippines from the collection of Mr C. Treadaway. Recent publications on
the fauna of Nepal (Yazaki, 1992, 1993, 1994) have also been a valuable source.
Many host-plant data are drawn from unpublished records of the
International Institute of Entomology. These are collated from material
submitted to the Institute for identification from throughout the
Indo-Australian tropics. Of particular note in recent years are records on
material submitted by the Indian Central Agricultural Research Institute station
in the Andaman Is. Plant nomenclature follows Mabberley (1987).
Holotypes of new taxa have been deposited in The Natural History Museum
except where indicated to the contrary.
Nomenclatural details of all genus-group names are to be found in
Fletcher (1979), and are therefore not repeated here. Fletcher did not indicate
generic gender. Whilst the Code of Zoological Nomenclature stipulates that
adjectival species-group names should agree in gender with the genus-group name,
the application of this in the Geometridae is fraught with difficulty (Holloway,
1993[4]). In describing new taxa in genera ending in -odes, for aesthetic
reasons I follow feminine tradition rather than masculine erudition. Given
modern requirements for computerised database construction, and given the
confusion that rectification would be likely to cause amongst users of
biosystematics not familiar with the niceties of the Latin language, all species
names given here have the orthography of the original description. The reader
should also note that the convention of putting author names in parentheses,
where the genus of combination is not the original one, has not been followed,
as the situation is clear from the synonymy attached to each species treated.
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