Crematogaster nawai

This species is abundant near sea shores and nests under stones or (rarely) inside the wood of dead trees (Japanese Ant Image Database).

Identification
Within Japan, C. nawai is distinguishable from other species because its thoracic dorsum is convex and not margined laterally and its petiole is longer than wide. Note that identifications of specimens as C. nawai in literature preceding Onoyama (1976) are likely to be erroneous (Onoyama, 1980).

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

Nomenclature

 * laboriosa. Crematogaster laboriosa Smith, F. 1874: 407 (w.) JAPAN. [Junior primary homonym of laboriosus Smith, F. 1860b: 109, above.] Wheeler, W.M. 1928d: 109 (m.); Imai, 1966: 119 (k.). Combination in C. (Acrocoelia): Emery, 1922e: 143; in C. (Crematogaster): Bolton, 1995b: 166. Synonym of nawai which is hence first available replacement name: Onoyama, 1998: 230.
 *  nawai. Crematogaster auberti var. nawai Ito, 1914: 41 (w.) JAPAN. Combination in C. (Acrocoelia): Emery, 1922e: 143. Raised to species: Emery, 1922e: 143. Subspecies of laboriosa: Santschi, 1930c: 263. Raised to species; synonym of and hence first available replacement name for laboriosa Smith, F. 1874: 407 [junior primary homonym of laboriosus Smith, F. 1860b: 109]: Onoyama, 1998: 230.

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