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Claterna
cydonia Cramer
Phalaena
cydonia Cramer, [1775] 1779, Uitlandsche Kapellen,
1: 34.
Focilla
submemorans Walker,
1858, List
Specimens lepid. Insects Colln Br. Mus., 15: 1533.
Claterna
exagens Walker,
1858, List
Specimens lepid. Insects Colln Br. Mus., 15: 1543.
Claterna
affinis Rothschild, [1915] 1916, Rep. B.O.U. exp.,
2 (No. 15): 58.
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Claterna
cydonia 
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Diagnosis.
There is slight sexual dimorphism in forewing shape, the apex in males being
more produced, with the distal margin slightly sinuous (slightly angled in
females). The medium grey ground colour is tinged brownish on the forewings and
more mauve on the hindwings. The facies is similar to that of Mecodina
in
the development of a dark brown costal triangle in association with the forewing
submarginal, but the fasciation is otherwise whitish rather than darker.
Geographical
range. Indian Subregion to New Guinea.
Habitat
preference. This is an infrequent species of lowland forest, with no
records above 500m except for a singleton from stunted hill forest at 1200m on
Bukit Monkobo in Sabah. During the Mulu survey it was commoner in alluvial
forests and it was well represented in logged forest areas near the Danum Valley
Field Centre as well as in primary forest, more often in understorey samples (S.J.
Willott, unpublished data). Chey (1994) recorded it in some frequency from
lowland softwood plantations.
Biology.
The species has been reared from Mussaenda (Rubiaceae) in New Guinea (Miller et
al.,
unpublished).
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