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Perixera
decretaria Walker comb. n.
Anisodes decretaria, Walker,
1861, List. Specimens lepid. Insects Colln Br. Mus., 22: 650.
Ephyra privata Walker, 1861, List Specimens lepid. Insects
Colln Br. Mus., 22: 668 syn. n.
Diagnosis. In facies this species is very similar to decretarioides possibly
slightly less heavily fasciated. The only really reliable distinction is in the
male genitalia: the uncus is not rugose; the valves are more elongate, the
costal process much narrower, less hooked distally; the aedeagus is less
sclerotised and spoonlike apically.
Taxonomic notes. Prout (1938, Gross-Schmett. Erde, 12:174) stated of the type of privata
that "this taxon is one of Walker's (unfortunately numerous) worn 
types
and although I have examined it repeatedly I am not yet confident about it". In
fact the specimen is not nearly as bad as he implied and can be associated with
material taken in recent surveys and with decretaria.
Geographical range. Borneo, Peninsular Malaysia.
Habitat preference. Most material is from lowland and hill dipterocarp
forest, though the holotype is from dry heath forest. Two females were taken in
stunted hill forest at 900m on Bukit Monkobo and one from a Eucalyptus
deglupta plantation at Brumas in Sabah.
Biology. Yunus & Ho (1980) recorded Coffea (Rubiaceae) as a
host-plant.
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