Crematogaster jacobsoni

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Crematogaster jacobsoni
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Crematogaster
Species: C. jacobsoni
Binomial name
Crematogaster jacobsoni
Forel, 1911

Crematogaster jacobsoni casent0908369 p 1 high.jpg

Crematogaster jacobsoni casent0908369 d 1 high.jpg

Specimen Labels


Hosoishi and Ogata (2012) – Examination of syntype workers in Musee d'Histoire Naturelle Genève and Naturhistorisches Museum, Basel reveals that C. jacobsoni is not similar to the C. brevis group or C. treubi group in Asia. Characteristic features include: occipital carinae developed; petiole weakly broader anteriorly, but without angular corners; postpetiole weakly bilobed with longitudinal median sulcus. This species is similar to Crematogaster semperi or Crematogaster simoni. We hereby transfer C. jacobsoni to the subgenus Crematogaster, to compare it with closely related species in this group in the future.


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.

  • jacobsoni. Crematogaster jacobsoni Forel, 1911b: 201 (w.) INDONESIA (Java). Combination in C. (Orthocrema): Emery, 1922e: 132; in C. (Mesocrema): Santschi, 1937e: 310.

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


Type Material

Hosoishi and Ogata (2012) –Three syntype workers from INDONESIA: Semarang, Java (Musee d'Histoire Naturelle Genève) and one syntype worker (Naturhistorisches Museum, Basel) [examined].


  • Emery, C. 1922c. Hymenoptera. Fam. Formicidae. Subfam. Myrmicinae. [part]. Genera Insectorum 174B: 95-206 (page 132, Combination in C. (Orthocrema))
  • Forel, A. 1911b. Ameisen aus Java beobachtet und gesammelt von Herrn Edward Jacobson. II. Theil. Notes Leyden Mus. 33: 193-218 (page 201, worker described)
  • Hosoishi, S. & Ogata, K. 2012. Revision of the Crematogaster brevis complex in Asia (Hymenoptera: Formicidae). Zootaxa. 3349:18-30.
  • Santschi, F. 1937e. Contribution à l'étude des Crematogaster paléarctiques. Mém. Soc. Vaudoise Sci. Nat. 5: 295-317 (page 310, Combination in C. (Mesocrema))