Effect of indoor light trap height on capture of Musca domestica and Megaselia scalaris

is study compared the number of individuals Musca domestica and Megaselia scalaris caught in multiple vertically placed traps to determine the e ective placement of height of traps for monitoring. e number of M. domestica decreased signi cantly as the height of the light trap increased. e number of M. scalaris was largest in the highest trap when 2 or 3 traps were operated. ere was no signi cant di erence in the number of M. domestica and M. scalaris caught at di erent heights when only one light was turned on, which suggested that both species were attracted to the light at any height, regardless of their height preferences. ese results indicate that when multiple traps are used for indoor monitoring of ies, the traps should be set at a uniform height.