Euxenister

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There are three species in this myrmecophilous genus of Histeridae. All are from the New World and are found in army ant nests.

List of Euxenister and their Host Ants
Genus and species Author and Year Ant Host Distribution Notes
Euxenister asperatus Reichensperger, 1923 Eciton quadriglume Brazil
Euxenister caroli Reichensperger, 1923 Eciton burchellii Brazil, Costa Rica runs in emigration on foot; attached to pupa or larva carried by a worker; rides on underside of minor, intermediate and submajor worker, body upside down
Euxenister wheeleri Mann, 1925 Eciton hamatum Panama primarily runs in emigration on foot; rarely attached to larva or booty carried by a worker; rides on underside of workers, upside down; once attached to host male gaster

REFERENCES

  • Akre, Roger D., 1968: The behavior of Euxenister and Pulvinister, histerid beetles associated with army ants,. Pan Pac Entomol 44(2): 87-101