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Hypomecis tetragonata Walker comb. n.
Macaria tetragonata Walker, 1862, List Specimens lepid. Insects Colln Br. Mus., 26: 1651.
Menophra deficiens Moore, 1888, Descr. new Indian lepid. Insects Colln. Atkinson, p. 237.
Maidania pallidiplaga Warren, 1899, Novit. zool., 6: 351, syn. n.
Genophaga cinnamomaria Rothschild, 1915, Novit. zool., 22: 218.

Hypomecis tetragonata

The facies is atypical, the wings a uniform pale grey with finely punctate dark postmedials. The hindwing has an acute tail at M3, and the forewing is apically truncate, a submarginal spot and stronger marginal punctation associated with the posterior angle of the truncation.

Taxonomic notes. Structures of tegumen, valve and aedeagus in the male genitalia show this species to be a typical Hypomecis. In the female the bursa and signum are comparable but the ovipositor is elongate and telescopic as in Ectropis and Cleora. The genitalia of New Guinea males are similar to those of typical Oriental males, hence pallidiplaga Warren is brought into synonymy, but possibly should have subspecific status in consideration of the more speckled appearance of material from the east of the range of the species. Material from Sulawesi is larger than that from elsewhere.

Geographical range. N.E. Himalaya, Peninsular Malaysia, Sumatra, Borneo, Sulawesi, S. Moluccas, New Guinea (Sud-Est. I.).

Habitat preference. Most records are from lowland forest, particularly kerangas during the Mulu survey, but a few individuals have been taken in lower montane forest.

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