Ptyonota formosa Hampson, 1894, Fauna Br. India, Moths, 2: 425.
Ptyonota formosa Hampson; Kobes, 1997: 82.
Diagnosis. The two species in this genus are very similar in appearance,
with formosa being slightly smaller and more uniform. In carissima
Wileman & West the medial zone of the forewing is distinctly blackened. In the
male genitalia, also very similar, the aedeagus vesica diverticulum with many
spines has about ten straight ones in formosa and about four or five
longer, curved ones in carissima; the diverticulum itself is longer in
Burma (Tenasserim), Singapore, Sumatra, Bali,
Bornean material seen is restricted to a series of
five specimens taken in mangrove in the Bay of Brunei.
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