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Bregmatomyrma carnosa
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Formicinae
Tribe: Plagiolepidini
Genus: Bregmatomyrma
Wheeler, W.M., 1929
Type species
Bregmatomyrma carnosa
1 species
(Species Checklist, Species by Country)

Bregmatomyrma carnosa casent0178754 profile 1.jpg

Bregmatomyrma carnosa

Bregmatomyrma carnosa casent0178754 dorsal 1.jpg

Specimen Label

Known from a few collections of single queens of Bregmatomyrma carnosa. Habitat details from these collection include limestone forest and rainforest habitats.


The general habitus of the insect somewhat resembles that of Pseudolasius and suggests that it might be placed, for the present, near the tribe Lasiini.

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Distribution and Richness based on AntMaps



Only known from the queen caste.


Male Morphology

 • Caste unknown


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

  • BREGMATOMYRMA [Formicinae: Plagiolepidini]
    • Bregmatomyrma Wheeler, W.M. 1929b: 3. Type-species: Bregmatomyrma carnosa, by original designation.
  • [Bregmatomyrmex: Wheeler, G.C. & Wheeler, J. 1985: 259, incorrect subsequent spelling].

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



Robust, with thick, smooth integument. Head very high and convex in the middle, depressed at the posterior corners, which are rounded; the occiput deeply excised in the middle. Eyes very prominent but rather small, situated at the sides of the head and just in front of its middle. Ocelli large and prominent. Palpi very small and short. Mandibles well-developed, subtriangular, dentate, narrow at the bases which are inserted rather far apart near the anterior corners of the head. Clypeus broad and short with nearly straight anterior border; its posterior border straight and not continued back between the frontal carinre. The latter very short and neither prominent nor covering the antennal insertions, sigmoidal, moderately far apart. Antennre 12-jointed, long, inserted very close to the clypeus; scape stout, funiculus very slender, not thickened towards the tip; first joint shorter than the second. Antennal and clypeal fovere not confluent, the latter indistinct. Thorax robust and massive, broader than the head; mesonotum very prominent anteriorly, epinotum smooth and unarmed, its spiracles circular. Petiole large, with a very thick, rounded node above. Gaster short and subglobose, not longer than broad, very convex above; first segment short, not longer than the second and third together. Legs very long; femora, tibire and metatarsi flattened; spurs of posterior tibire very small and short. Claws simple. Wings lacking.


  • Agosti, D. 1991. Revision of the oriental ant genus Cladomyrma, with an outline of the higher classification of the Formicinae (Hymenoptera: Formicidae). Syst. Entomol. 16: 293-310. (page 296, Bregmatomyrma in Formicinae, Pseudolasius genus group)
  • Bolton, B. 1994. Identification guide to the ant genera of the world. Cambridge, Mass.: Harvard University Press, 222 pp. (page 50, Bregmatomyrma in Formicinae, Bregmatomyrmini )
  • Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. (page 82, Bregmatomyrma in Formicinae, Bregmatomyrmini )
  • Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 23, 102, Bregmatomyrma in Plagiolepidini)
  • Dlussky, G. M.; Fedoseeva, E. B. 1988. Origin and early stages of evolution in ants. Pp. 70-144 in: Ponomarenko, A. G. (ed.) Cretaceous biocenotic crisis and insect evolution. Moskva: Nauka, 232 pp. (page 77, Bregmatomyrma incertae sedis in Formicinae)
  • Wheeler, G. C.; Wheeler, J. 1985b. A simplified conspectus of the Formicidae. Trans. Am. Entomol. Soc. 111: 255-264 (page 259, Bregmatomyrmex [incorrect spelling]; incertae sedis is Formicidae (incomprehensible entry))
  • Wheeler, W. M. 1929b. Three new genera of ants from the Dutch East Indies. Am. Mus. Novit. 349: 1-8 (page 3, 5, Bregmatomyrma in Formicinae, Bregmatomyrmini [Bregmatomyrminii])