Lesser house fly
Measuring 5 to 6 mm, it is a little smaller and slimmer than the house fly. What is particularly noticeable is the jerky way that it flies, sometimes around lamps, sometimes zig-zagging through rooms. Mass infestations are rare.
In principle, it can have the same impact as the house fly. This species is a potential vector of diseases, as it often lingers on faeces and the carcasses of vertebrates, feeds on these and travels between faeces and foodstuffs. In addition, it is considered to be a nuisance, which impairs well-being and contaminates lamps, wallpapers, etc.