Spilosoma extrema is a moth in the family Erebidae. It was described by Franz Daniel in 1943. It is found in Yunnan, China."Spilosoma Curtis, 1825" at Markku Savela's Lepidoptera and Some Other Life Forms
Note: Lepindex lists a Spilosoma extrema Bannerman, 1933 as a synonym of Spilosoma purpurata.
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