Monomorium triviale

This species is found in open land and at woodland margins, and is quite rare in Japan (Japanese Ant Image Database). Idogawa and Dobata (2018) found colonies nesting in bamboo cavities in Kyoto Prefecture, Japan in a thicket dominated by deciduous broad-leaved trees.

Identification
Apart from coloration, this species is similar to Monomorium intrudens. In Japan, the general appearance of M. triviale (coloration, size, sculpturing) is also similar to Solenopsis japonica, although M. triviale has a 3- rather than 2-segmented antennal club.

Distribution based on Regional Taxon Lists
Palaearctic Region: China, Japan, Republic of Korea.

Nomenclature

 *  triviale. Monomorium triviale Wheeler, W.M. 1906c: 311 (w.) JAPAN.

References based on Global Ant Biodiversity Informatics

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