''Polyhymno alcimacha'' is a

moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...

of the family Gelechiidae. It was described by Edward Meyrick in 1918. It is found in

India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...

, where it has been recorded from

Coimbatore Coimbatore, also spelt as Koyamputhur (), sometimes shortened as Kovai (), is one of the major metropolitan cities in the Indian state of Tamil Nadu. It is located on the banks of the Noyyal River and surrounded by the Western Ghats. Coimbato ...

in the south and

Assam Assam (; ) is a state in northeastern India, south of the eastern Himalayas along the Brahmaputra and Barak River valleys. Assam covers an area of . The state is bordered by Bhutan and Arunachal Pradesh to the north; Nagaland and Manipur ...

. The

wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan of ...

is 11–12 mm. The forewings are dark bronzy fuscous with a strong ochreous-white median streak from the base to five-sixths, attenuated to a point posteriorly and with an ochreous-white line along the costa from towards the base to before the middle, then very obliquely to beyond the apex of the median streak, where it is very acutely angulated inwards and joins an ochreous-white line running along the fold from before the middle of the wing to the tornus. The apex and termen are occupied by pale ochreous suffusion and there is an angulated leaden-metallic line from a white mark on costa at three-fourths, the lower half running along the termen. Beyond this is a white spot mostly in the cilia, preceded and followed by minute indistinct whitish strigulae. The hindwings are grey.Meyrick, Edward (1916–1923)
''Exotic Microlepidoptera''. 2 (5): 129.

References

Moths described in 1918 Polyhymno {{Thiotrichinae-stub