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Celenna
festivaria Fabricius comb. rev.
Phalaena festivaria Fabricius,
1794, Ent. Syst., 3(2): 152.
Geometra saturataria Walker,
1861, List Specimens lepid. Insects Colln Br. Mus., 22: 519.
Hypochrosis festivaria temperata Prout,
1925, Ent. Mitteilungen, 14: 311.
Hypochrosis festivaria formosensis Inoue
and H. f. manifesta Inoue, 1964, Kontyu, 32: 338.
Hypochrosis festivaria Fabricius;
Holloway, 1976: 76.
Diagnosis. This and the next species are very similar but, whereas centraria Snellen
has the forewing band entire, in festivaria it is divided in two. The
hindwing patch has an excavation at the centre of its interior margin in
festivaria
but is more evenly rounded in centraria.
Taxonomic notes. The species is characterised by having a strong process in the centre of
the ventral margin of the valve. This is tapering in typical Indian material but
apically spatulate, with the genitalia generally more robust, in Bornean
material. In the aedeagus vesica the basal groups of cornuti are reduced in
Bornean material but the single cornutus is slightly longer, sinuous. The two
subspecies described by Inoue have the green areas of the wings much extended,
but the genitalia resemble those of Indian specimens. Sundanian material may be
referable to ssp. temperata but this taxon was based on a single female,
and no Philippines males were available for examination.
Geographical range. India, Burma, Borneo, Java; Taiwan (ssp. formosensis
Inoue); Ryukyu Is. (ssp. manifesta Inoue); Luzon (ssp. temperata Prout).
Habitat preference. In Borneo the species has mostly been taken in
montane forests between 1000m and 2000m (G. Kinabalu, G. Api, G. Mulu, Bukit
Retak) but specimens have also been taken in lowland dipterocarp forest on G.
Mulu and at Samarinda in the lowlands of Kalimantan.
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