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Ourapteryx Leach
Type species: sambucaria Linnaeus (Palaearctic).
Synonyms: Acaena Treitschke (type species sambucaria);
Phrudura Swinhoe (type species pura Swinhoe, Sumatra) syn. n.
The generic features are listed in the tribal description. Phrudura contains
two Sumatran species with features typical of Ourapteryx except the tail
to the hindwing. This is also lacking in the Bornean O. incaudata Warren.
Phrudura is therefore brought into synonymy with Ourapteryx.
Several larvae in the genus are illustrated in Sugi (1987). A larva of
the type species was also examined. They are mostly long, slender, tapering
slightly and evenly over the whole length to the head. The thoracic legs are
relatively long, slender, that of T3 largest. There is a strong transverse ridge
dorsally, posteriorly on A5, with weaker ones on A3; just anterior to this on A3
are lateral conical processes. The coloration is in shades of reddish brown,
brown and grey.
Sato & Nakajima (1975) have recorded Japanese taxa as feeding on the
following plant families: Actinidiaceae, Aquifoliaceae, Betulaceae,
Caprifoliaceae, Cephalotaxaceae, Ericaceae, Fagaceae, Lauraceae, Leguminosae,
Rhamnaceae, Sabiaceae, Salicaceae, Styracaceae, Theaceae, Ulmaceae.
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