Monomorium sahlbergi

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Monomorium sahlbergi
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Solenopsidini
Genus: Monomorium
Species: M. sahlbergi
Binomial name
Monomorium sahlbergi
Emery, 1898

Monomorium sahlbergi casent0904576 p 1 high.jpg

Monomorium sahlbergi casent0904576 d 1 high.jpg

Specimen Labels


In Yemen this species was collected from a banana farm where the soil was moist and rich in decaying livestock faeces. Several pselaphine beetles were also observed in the same habitat (Sharaf et al., 2017).


Worker caste of this species can be confused with the cosmopolitan species Monomorium pharaonis (L., 1758) but it can be separated by the finely longitudinally striated head, the smooth first gastral tergite, and the dark patches in front of the eyes (Sharaf et al., 2017).

Keys including this Species


Boer et al. (2020): All records of M. sahlbergi originate from desert-like, urban, industrial, and military areas ranging from sea level to an elevation of 1800 m. It is not clear from our research what the original geographic region of M. sahlbergi was. Based on the distribution of other species in the salomonis group, the native distribution would include specimens from the Indomalaya region (Nepal, India, Thailand). Our data came from the following main geographic regions: Palearctic (China, Israel, Netherlands (interception)), Australian (New Zealand, from likely interceptions), Nearctic (USA, in part interceptions), Neotropical (Panama, Galapagos), Afrotropical (Reunion, Madagascar) and Oceania (Hawaii).

Distribution based on Regional Taxon Lists

Afrotropical Region: Socotra Archipelago, Yemen.
Oriental Region: India (type locality), Pakistan, Sri Lanka.
Palaearctic Region: China, Israel (type locality), Oman.

Distribution based on AntMaps


Distribution based on AntWeb specimens

Check data from AntWeb


Sharaf et al (2018) - Oman: Several workers were found in leaf litter under a date palm tree where the soil was soft and dry.



The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

  • sahlbergi. Monomorium sahlbergi Emery, 1898c: 131, fig. (w., ergatoid q.) ISRAEL.
    • Senior synonym of dichroum: Boer et al., 2020: 93.
    • Status as species: Emery, 1908h: 684; Emery, 1922e: 174; Menozzi, 1933b: 65 (in key); Ettershank, 1966: 92; Kugler, J. 1988: 257; Bolton, 1995b: 266; Vonshak, et al. 2009: 43; Borowiec, L. 2014: 125.
  • dichroum. Monomorium dichroum Forel, 1902c: 212 (w.q.) INDIA (West Bengal, Karnataka, Maharashtra, Tamil Nadu).
    • Imai, et al. 1984: 7 (k.).
    • Status as species: Forel, 1903a: 688; Bingham, 1903: 202; Forel, 1908a: 3; Forel, 1911i: 221; Forel, 1918a: 721; Emery, 1922e: 173; Chapman & Capco, 1951: 164; Ettershank, 1966: 88; Bolton, 1995b: 261; Tiwari, 1999: 55; Guénard & Dunn, 2012: 45; Bharti, Guénard, et al. 2016: 39; Sharaf, Fisher, et al. 2017: 23; Sharaf, Fisher, et al. 2018: 25.
    • Junior synonym of sahlbergi: Boer et al., 2020: 93.



  • 2n = 16 (India) (Imai et al., 1984).


References based on Global Ant Biodiversity Informatics

  • Borowiec L. 2014. Catalogue of ants of Europe, the Mediterranean Basin and adjacent regions (Hymenoptera: Formicidae). Genus (Wroclaw) 25(1-2): 1-340.
  • Emery, C. "Beiträge zur Kenntniss der palaearktischen Ameisen." Öfversigt af Finska Vetenskaps-Societetens Förhandlingar (Helsinki) 20 (1898): 124-151.
  • Emery, C. "Beiträge zur Monographie der Formiciden des paläarktischen Faunengebietes. (Hym.) Teil V. Monomorium." Deutsche Entomologische Zeitschrift 1908 (1908): 663-686.
  • Ettershank G. 1966. A generic revision of the world Myrmicinae related to Solenopsis and Pheidologeton (Hymenoptera: Formicidae). Aust. J. Zool. 14: 73-171.
  • Forel A. 1902. Myrmicinae nouveaux de l'Inde et de Ceylan. Rev. Suisse Zool. 10: 165-249.
  • Forel A. 1903. Les Formicides de l'Empire des Indes et de Ceylan. Part X. J. Bombay Nat. Hist. Soc. 14: 679-715.
  • Forel A. 1911. Ameisen aus Ceylon, gesammelt von Prof. K. Escherich (einige von Prof. E. Bugnion). Pp. 215-228 in: Escherich, K. Termitenleben auf Ceylon. Jena: Gustav Fischer, xxxii + 262 pp.
  • Forel, A. 1908. Fourmis de Ceylan et d'Égypte récoltées par le Prof. E. Bugnion. Lasius carniolicus. Fourmis de Kerguelen. Pseudandrie? Strongylognathus testaceus. Bull. Soc. Vaudoise Sci. Nat. 44: 1-22
  • Martinez J. J. 2008. Firebreaks in planted pine forests in Israel: patches for Mediterranean Bata ants. Vie et Milieu 58(3/4): 233-236.
  • Narendra A., H. Gibb, and T. M. Ali. 2011. Structure of ant assemblages in Western Ghats, India: role of habitat, disturbance and introduced species. Insect Conservation and diversity 4(2): 132-141.
  • Rajan P. D., M. Zacharias, and T. M. Mustak Ali. 2006. Insecta: Hymenoptera: Formicidae. Fauna of Biligiri Rangaswamy Temple Wildlife Sanctuary (Karnataka). Conservation Area Series, Zool. Surv. India.i-iv,27: 153-188.
  • Ramachandra T. V., M. D. Subash Chandran, N. V. Joshi, A. Narendra, and T. M. Ali. 2012. Ant species composition and diversity in the Sharavathi Rivers basin, central Western Ghats. Sahyadri Conservation Series 3, ENVIS Technical Report 20. 51 pages.
  • Vonshak M., and A. Ionescu-Hirsch. 2009. A checklist of the ants of Israel (Hymenoptera: Formicidae). Israel Journal of Entomology 39: 33-55.