Lista comentada de formícidos (Hymenoptera: Formicidae) en parques urbanos de la Zona Metropolitana de Guadalajara, Jalisco, México.

Urban ecosystems are areas subject to constant changes due to human activities, characterized by spatial heterogeneity and temporal dynamics, which translates into disorder and reduction of biodiversity. Diversity is lower in urban and agroecosystems than in conserved ecosystems, transition zones become highly diverse due to the complexity of vegetation and opportunities as a new environment. Ants can adapt to urban environments, they tend to be generalist, dominant and with aggressive behavior, these environments have a greater number of introduced species. These organisms have been little studied in urban environments despite their importance and interactions they have with other organisms. In order to know the species of ants in parks of the Guadalajara Metropolitan Zone, 13 parks of Agencia Metropolitana de Bosques Urbanos were selected, one visit was made to each park between February and July 2021. Six points were marked in each park, four baits were placed in each point (two with tuna and two with walnut) and two hours of manual collection were carried out in the morning, from 9:00 to 11:00 am. The material was taken to the laboratory where it was separated and determined and deposited in the Colección Entomológica of Cento de Estudios en Zoología of the Universidad de Guadalajara. An annotated checklist of the ant species found was prepared. 17,677 individuals belonging to 35 species were collected; of which 26 are native species and nine are introduced species. Eight species of ant were found in all the parks, three species were exclusive to only one park. The most diverse park had 26 species, and the least diversity were two parks, with 17 species each one. Paratrechina longicornis was the most abundant species, while Hypoponera opaciceps, Solenopsis subterranea and Strumigenys louisianae were the least abundant species with only one individual each one. Myrmelachista skwarrae is collected for the first time in urban environments. [ABSTRACT FROM AUTHOR]