Plusiogramma aurosigna Hampson,
1895, Trans. ent. Soc. Lond. 1895: 278.
Plusiogramma aurisigna (sic)
Hampson; Kiriakoff, 1968: 257.
Diagnosis. The deep, rich, reddish brown forewings with a variable amount of silver
decoration distinguish this species.
Taxonomic notes. The male genitalia illustrated by Kiriakoff (1968) are of argentata Oberthur,
not aurosigna as stated.
The only other species in the genus is P. argentata from China.
In the male genitalia of argentata the tegumen is narrower than long,
longer than in aurosigna, and the uncus is very much smaller, entire
rather than bilobed. The taxon Pygaera denticulata Oberthur, based on a
female from the same locality as the holotype male of argentata, may
merely be the female of that species.
Geographical range. S. Burma (Tenasserim), Borneo, Sumatra (Kiriakoff
Habitat preference. The species is only known in Borneo from two males
taken at Badas, an area of Brunei with much swamp forest.
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