Crematogaster ogatai

This species has so far been known only from the type locality. The type series was collected from Tam Dao National Park (21° 21'–42' N, 105° 23'–44' E; 1,000–1,240 m altitude) of northern Vietnam.

Identification
This species is similar to Crematogaster treubi in having the weakly developed occipital carinae, but can be distinguished by the deep metanotal groove, long metanotal gland bulla and globular postpetiole.

Distribution based on Regional Taxon Lists
Oriental Region: Vietnam.

Nomenclature

 * . Crematogaster ogatai Hosoishi, 2022: 61, figs. 1-2 (w.) VIETNAM.

Type Material

 * Holotype: Worker from Vietnam: Tam Dao (1,000–1,240 m alt.), Vinh Phuc Prov., 8.viii.1998 (Sk. Yamane) (IEBR, KUECANT038).
 * Paratypes: Twelve paratype workers: same data as holotype, (BMNH (two paratypes, KUECANT040, KUECANT041), IEBR (one paratype, KUECANT039), KUEC (two paratypes, KUECANT042, KUECANT043), NHMW (two paratypes, KUECANT044, KUECANT045), SKYC (three paratypes, KUECANT046, KUECANT047, KUECANT048), THNHM (two paratypes, KUECANT049, KUECANT050)).