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Plotheia viridalis Pagenstecher comb. n.
Epizeuxis viridalis Pagenstecher, 1888, Jb. nassau. Ver. Naturk., 41: 163.
Gadirtha cuprescens Hampson 1912, Cat.
Lepid. Phalaenae Br. Mus., 11: 348 syn. n..


Plotheia viridalis

The general appearance is similar to that of exacta, except the forewings are narrower, more rectangular and a somewhat brighter green. The hindwings are uniform brown. See also

Taxonomic note. A note by W. Brandt in the BMNH collection suggested that cuprescens might be a junior synonym of Epizeuxis viridalis Pagenstecher (Ambon), the holotype being in the Wiesbaden Museum. A colour image of this type was kindly made available by Herr F. Geller-Grimm, the curator there, and this synonymy is here confirmed. It is possible also that P. elongata Hampson comb. n. from the N. E. Himalaya is closely related, but no males were available for dissection, and the female genitalia have a more pyriform, less irregular and less strongly corrugated corpus bursae and a narrower, less sclerotised ductus bursae than a female of viridalis from New Guinea. The genitalia of muscosa Fletcher are intermediate, with a bursa in elongata but a ductus as in viridalis though somewhat shorter.

Geographical range. New Guinea, Ambon, Sulawesi, Borneo.

Habitat preference. The only specimen is from lowland forest at 150m near the Danum Valley Field Centre, Sabah.

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