Monomorium intrudens

Japanese Name

Hime-ari

Smith, F. (1874) Descriptions of new species of Tenthredinidae, Ichneumonidae, Chrysididae, Formicidae, &c. of Japan. Transactions of the Entomological Society of London (4) 7: 373-409.

Not Monomorium floricola (Jerdon) (Jerdon, ) , Monomorium nipponense Wheeler (Wheeler, 1906) , Monomorium nipponense var. gracilum Teranishi (Teranishi, 1940) , Monomorium nipponense var. robustum Teranishi (Teranishi, 1940) , Monomorium nipponense var. satoi Teranishi (Teranishi, 1940) ,

Total length of workers around 1.5 mm. Body bicolored: yellow to yellowish brown from head to postpetiole; the gaster brown to blackish brown. Mandibles each with 4 teeth. Eyes each with 10 or more facets. Paired longitudinal carinae of clypeus obscure. Metanotal groove distinct. Posterodorsal border of propodeum rounded; the area of petiolar insertion not carinate. Ventral outline of petiole roundly convex. Body surfaces smooth and shining, without sculpture.

The species is found in open land, ranging to woodland margins. It nests under stones or in plant cavities, such as small bamboo stems. M. intrudens is one of the most common ant species of southwestern Japan.

Honshu, Shikoku, Kyushu, Nansei Is; Korean Peninsula.