Pachynoa xanthochyta is a moth in the family Crambidae. It was described by Turner in 1933 and originally found in Australia, where it has been recorded from Queensland. Later records indicate the species range may extend across Asia, for example to include BhutanIrungbam J.S., Chib M.S. & Wangdi K. 2016. Taxonomic review of the superfamily Pyraloidea in Bhutan (Lepidoptera). Journal of Asia-Pacific Biodiversity 9:355e382., Laos,Ko, J.-H., Lee, T.-G., Na, S.-M. & Bae, Y.-S. (2018). A new record of Pachynoa Lederer, 1863 (Lepidoptera: Crambidae: Spilomelinae) from Laos. Journal of Asia-Pacific Biodiversity 11(3): 395–398. and even India (Andaman and Nicobar Islands).Rao, B.S.K. & Sivaperuman, C. 2022. New records of pyraloid moths (Lepidoptera: Pyraloidea: Crambidae) from India. Zoosystematica Rossica 31(1): 20-26. However, these latter localities then are geographically close to historical records of Pachynoa spilosomoides (Moore, 1886) described from Sri Lanka and later various Indian localities by Hampson, 1896.Hampson, G.F. 1896. The Fauna of British India, including Ceylon and Burma (Moths) 4: 1–594. Taylor and Frances, London. In a paper by Rao & Sivaperuman, 2022Rao, B.S.K. & Sivaperuman, C. 2022. New records of pyraloid moths (Lepidoptera: Pyraloidea: Crambidae) from India. Zoosystematica Rossica 31(1): 20-26. which gave the first Indian records for "Pachynoa xanthochyta" (p.24) they list five species of Pachynoa were previously recorded from India - but without mention of Pachynoa spilosomoides (Moore, 1886)
The wingspan is about 30 mm. The wings are translucent yellow with black markings.Lepidoptera Larvae of Australia
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