Alien ants (Hymenoptera: Formicidae) in Mexico: the first database of records

The synthesis of comprehensive databases on the identity and distributions of alien organisms is a critical step to developing informed invasion management plans and identifying areas that are data-deficient. Here, we assembled all available records of alien ant distributions for Mexico, based on the literature, databases and unpublished data for a period ranging from 1855 to 2019; we compiled 967 records for 42 ant species non-native to Mexico, distributed across 438 localities. For the first time, we present mapped records and the distribution database of alien ants which is available through The Global Ant Biodiversity Informatics database at www.antmaps.org. The most commonly recorded species were Paratrechina longicornis, Monomorium pharaonis and Anoplolepis gracilipes. The states with the most records were Veracruz, Chiapas, Jalisco and Quintana Roo. The alien ants were most frequently encountered in urban areas (372 records) and in deciduous forest habitats (220). We provide summary of their distribution patterns and other related information useful for the control of these species in Mexico.