Colony extension and foraging areas of the Argentine ant in nine locations of Madrid. A Enrique Tierno Galván Park B del Norte-Carmen Tagle Park C Real Jardín Botánico de Madrid and Alfonso XII Street D Príncipe de Vergara Street E Sorolla Museum Gardens F Nueva España Neighbourhood G Casa de Campo Park (east side) and Madrid Río Park.

 
 
  Part of: López-Collar D, Cabrero-Sañudo FJ (2021) Update on the invasion status of the Argentine ant, Linepithema humile (Mayr, 1868), in Madrid, a large city in the interior of the Iberian Peninsula. Journal of Hymenoptera Research 85: 161-177. https://doi.org/10.3897/jhr.85.65725