The invention concerns a process for capturing mosquitoes by producing carbon dioxide (CO2) directed towards one or more mosquito traps, the CO2 being separated from the ambient air in at least one central system via at least one bed of microporous solid type materials, said process enabling an incoming flow of ambient air comprising 0.039% CO2 to be used to produce, in the direction of one or more mosquito traps, an outgoing gaseous flow of CO2 with a controlled regular flow rate comprising at least 10 g/hour/trap.
