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species
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Monomorium triviale
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Japanese Name
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Kiiro-hime-ari
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Original Reference
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Wheeler, W.M. (1906c) The ants of Japan. Bulletin of the American Museum of Natural History 22: 301-328.
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Description
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Total length of workers around 1.5 mm. Body unicolored: yellow to yellowish brown. Eyes each with around 10 facets. Mandibles each with 4 teeth. Median paired longitudinal carinae on clypeus obscure. Metanotal groove obscure. Posterodorsal border of propodeum rounded. Ventral outline of petiole roundly convex in profile. Body surfaces smooth and shining, without sculpture.
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Remarks
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Apart from coloration, the species is similar to M. intrudens and M. sp. 9. The general appearance of M. triviale (coloration, size, sculpturing) is also similar to Solenopsis japonica, but triviale has a 3- versus 2-segmented antennal club. It is found in open land and at woodland margins, and is quite rare.
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Distribution
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Honshu; Korean Peninsula.
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Editor
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Original text by Kazuo Ogata and Mamoru Terayama. English translation by Kazuo Ogata, edited by Robert W. Taylor.
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