Worldwide spread of the longhorn crazy ant, Paratrechina longicornis (Hymenoptera: Formicidae)

The longhorn crazy ant, Paratrechina longicornis (LATREILLE, 1802), is a ubiquitous agricultural and household pest throughout much of the tropics and subtropics and a pervasive indoor pest in temperate areas. I compiled specimen records of P. longicornis from > 2100 sites worldwide and analyzed historical, ecological, and evolutionary information to evaluate its known distribution, geographic origin, and potential future spread. I documented the earliest known P. longicornis records for 181 geographic areas (countries, major islands, island groups, US states, and Canadian provinces), including many for which I found no previously published records, e.g., Anguilla, Argentina, Austral Islands, Bahrain, British…