A review of the North American species of the fungus-gardening ant genus Trachymyrmex (Hymenoptera: Formicidae)

Christian Rabeling, Stefan P. Cover, Robert A. Johnson, Ulrich G. Mueller

Research output: Contribution to journalArticlepeer-review

66 Scopus citations


We revise and key Trachymyrmex ants occurring in North America north of Mexico. We recognize nine species, including one new species from southern Arizona: T. arizonensis (Wheeler), T. carinatus Mackay & Mackay, T. desertorum (Wheeler), T. jamaicensis (André), T. nogalensis Byars, T. pomonae Rabeling & Cover sp. nov., T. septentrionalis (McCook), T. smithi Buren, and T. turrifex (Wheeler). Two infraspecific taxa are synonymized: T. smithi neomexicanus Cole syn. nov. (= T. smithi) and T. turrifex caroli Wheeler syn. nov. (= T. turrifex). We briefly characterize the previously undescribed queens of T. desertorum and T. nogalensis, and the males of T. desertorum and T. turrifex. We include keys for the identification of workers, queens and males, along with distribution maps for all species. A phylogenetic analysis of DNA sequence information for parts of the mitochondrial gene Cytochrome Oxidase 1 and the first intron of the F1 Attini, Formicidae, phylogeny and species boundaries, taxonomy, Trachymyrmex, United States copy of the nuclear protein-coding gene Elongation Factor 1-α, is used to characterize the intra- versus inter-specific genetic variation of several populations per species. The molecular phylogenetic analysis supports our taxonomic con-clusions concerning the North American Trachymyrmex species.

Original languageEnglish (US)
Pages (from-to)1-53
Number of pages53
Issue number1664
StatePublished - Dec 17 2007
Externally publishedYes

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology


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