''Udea testacea'' is a moth in the family Crambidae. It was described by Arthur Gardiner Butler in 1879. It is found in

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

, Taiwan and the Philippines. The wingspan is 16–19 mm.Japanese Moths
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References

testacea Testacea may refer to: * a former order of rhizopods, which consisted of testate amoeboid organisms. * a former group of shelled molluscs and other invertebrates, created by Linnaeus and roughly corresponding to the colloquial term '' seashell'' ...

Moths described in 1879 {{Udea-stub