Evolution, systematics, and natural history of a new genus of cryptobiotic fungus-growing ants

Jeffrey Sosa-Calvo, Ted R. Schultz, Ana JeŠovnik, Romain A. Dahan, Christian Rabeling

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Xerolitor, a new, monotypic genus of fungus-growing ants, is described to accommodate the phylogenetically isolated, relict species Mycetosoritis explicatus Kempf. We also diagnose the male and the larva of Xerolitor explicatus (Kempf) comb.n. and report ecological observations for the species, including nest architecture and foraging behaviour. Xerolitor explicatus comb.n. inhabits the dry habitats of the Brazilian Cerrado and the Bolivian and Paraguayan Gran Chaco. Bayesian multilocus phylogenetic analyses indicate that X. explicatus comb.n. is, contrary to some prior hypotheses, a member of the ‘higher’ fungus-growing ants and the sister taxon of the genus Sericomyrmex Mayr. Results from phylogenetic analyses of the fungal cultivar grown by X. explicatus comb.n. in Paraguay, as well as the presence of gongylidia, indicate that the fungal mutualist is a member of the clade of higher fungal cultivar species and that it is probably the same species cultivated by some Trachymyrmex Forel and Sericomyrmex species.

Original languageEnglish (US)
Pages (from-to)549-567
Number of pages19
JournalSystematic Entomology
Volume43
Issue number3
DOIs
StatePublished - Jul 1 2018

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combs (social insects)
natural history
Sericomyrmex
ant
new genus
Formicidae
fungus
taxonomy
fungi
Mycetosoritis
history
cultivar
Trachymyrmex
relict species
phylogenetics
Paraguay
cerrado
phylogeny
cultivars
foraging behavior

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Insect Science

Cite this

Evolution, systematics, and natural history of a new genus of cryptobiotic fungus-growing ants. / Sosa-Calvo, Jeffrey; Schultz, Ted R.; JeŠovnik, Ana; Dahan, Romain A.; Rabeling, Christian.

In: Systematic Entomology, Vol. 43, No. 3, 01.07.2018, p. 549-567.

Research output: Contribution to journalArticle

Sosa-Calvo, Jeffrey ; Schultz, Ted R. ; JeŠovnik, Ana ; Dahan, Romain A. ; Rabeling, Christian. / Evolution, systematics, and natural history of a new genus of cryptobiotic fungus-growing ants. In: Systematic Entomology. 2018 ; Vol. 43, No. 3. pp. 549-567.
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