Temnothorax arimensis

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Temnothorax arimensis
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Temnothorax
Species: T. arimensis
Binomial name
Temnothorax arimensis
(Azuma, 1977)

T. arimensis ranges from lowlands to mountainous areas, to about 1,000 m above sea level. It nests in soil or dead twigs. Relatively rare. (Terayama and Onoyama 1999)


Terayama and Onoyama (1999) - A small ant: total length of workers around 2 mm. Body color yellow to yellowish brown from mesosoma to gaster, head brown. Scapes long, slightly exceeding posterior margin of head. Dorsal outline of mesosoma gently and simply convex, almost without interruption in the metanotal section (propodeal dorsum almost straight in some individuals). Metanotal groove not incised or very shallowly incised dorsally. Propodeal teeth relatively short, slightly longer than their basal width. Petiolar node triangular, with slightly concave anterior slope in profile. Subpetiolar process very small or obscure.

Keys including this Species


Hokkaido, Honshu.

Distribution based on Regional Taxon Lists

Palaearctic Region: Japan (type locality).

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb




The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • arimensis. Leptothorax (Leptothorax) arimensis Azuma, 1953: 3 (w.) JAPAN. Azuma, 1977: 114 (q.). Combination in Temnothorax: Bolton, 2003: 271. See also: Onoyama, 1980: 194, 212; Terayama & Onoyama, 1999: 80.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.


Type Material

Terayama and Onoyama (1999) - Worker, female. Type locality: Arima-onsen Shrine, Arima, Hyogo Pref. (several workers, 2. VI. 1947, M. Azuma leg.)