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species
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Pyramica circothrix
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Japanese Name
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Maruge-uroko-ari
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Original Reference
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Ogata, K. & Onoyama, K. (1998) A revision of the ant genus Smithistruma Brown of Japan, with descriptions of four new species (Hymenoptera: Formicidae). Entomological Science 1: 277-287.
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Synonym
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Smithistruma circothrix Ogata & Onoyama, 1998,
Pyramica circothrix (Ogata & Onoyama): Bolton, 1999,
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Description
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Total length of workers around 1.5 mm. Body color reddish brown. Clypeus with straight anterior margin, rounded corners, and a fringe of spatulate hairs. Leading margins of antennal scapes angulate. Head and mesosoma covered with suborbicular hairs, similar to those of species formerly assigned to Epitritus and Quadristruma.
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Remarks
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Rare. Found on the floor of broadleaf forests, nesting in the soil. Pyramica circothrix corresponds to "Smithistruma sp." of Onoyama (1976), and S. sp. 8 of the Myrmecological Society of Japan Editorial Committee (1988).
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Distribution
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Okinawa I. (Nago [Takuya Abe leg.]; Seifaa-utaki [Keiichi Onoyama leg.]), Ishigaki I. [Katsura Morimoto leg.]
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Editor
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Original text by Kazuo Ogata and Keiichi Onoyama. English translation by Kazuo Ogata, edited by Robert W. Taylor.
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