Crematogaster yamanei

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Crematogaster yamanei
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Crematogaster
Species: C. yamanei
Binomial name
Crematogaster yamanei
Hosoishi & Ogata, 2009

Crematogaster yamanei casent0905904 p 1 high.jpg

Crematogaster yamanei casent0905904 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of Crematogaster yamanei.


A member of the subgenus Physocrema. Hosoishi and Ogata (2009) - This species is very similar to Crematogaster vacca. It differs in the reticulate rugulae on the head and promesonotum, and the relative depth of the metanotal groove.

Keys including this Species


This species is known only from the type locality in Sumatra.

Distribution based on Regional Taxon Lists

Indo-Australian Region: Indonesia (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.

  • yamanei. Crematogaster (Physocrema) yamanei Hosoishi & Ogata, 2009b: 33, figs. 20, 32 (w.) INDONESIA (Sumatra).

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



HW 1.15–1.7; HL 1.03–1.45; CI 112–118; SL 0.93–1.1; SI 65–81; EL 0.2–0.28; PW 0.63–0.9; WL 1.26–1.78; PSL 0.15–0.18; PtL 0.41–0.55; PtW 0.36–0.5; PtH 0.23–0.28; PpL 0.22–0.33; PpW 0.31–0.48; PtHI 50–57; PtWI 90–96; PpWI 143–146; WI 85–95 (Three workers measured).

Workers with pronounced size polymorphism.

Scape reaching posterior corner of the head in large workers.

In lateral view, pronotum and mesonotum forming a single convexity; propodeum slightly raised relative to promesonotum. Anterior margin of pronotal collar slightly concave in dorsal view. Metanotal groove not convex posteriorly in dorsal view, not very deep and situated posterior to the posterior ridge of pronotum in lateral view; thorax not strongly constricted in middle in dorsal view. In dorsal view, many longitudinal rugulae connecting between mesonotum and propodeum; but the boundary distinct. Propodeal spiracle situated away from the metapleural gland orifice, the distance between them much greater than the propodeal spiracle diameter. Propodeal spines present.

Postpetiole slightly bilobed behind without longitudinal median sulcus.

Clypeus sculptured with longitudinal rugulae. Longitudinal rugulae on dorsal face of head, pronotum, mesonotum and propodeum.

Standing pilosity sparse on dorsal face of head and mesosoma. Dorsal face of head with appressed setae. Fourth abdominal tergite with some erect setae and abundant appressed setae.

Body color black.

Type Material

Hosoishi and Ogata (2009) - HOLOTYPE worker from INDONESIA: Parapat (900m alt), Danau Toba, N. Sumatra, 19. viii. 2002 (SU02-SKY-66) (Sk Yamane) (Bogor Zoological Museum). Paratypes. 12 workers, same data as holotype (The Natural History Museum, Kyushu University Collection, Museo Civico di Storia Naturale, Genoa, Museum of Comparative Zoology, Musee d'Histoire Naturelle Genève, Naturhistorisches Museum, Basel).