The experts behind the Scottish Midge Forecast are worried that a change in the recent dry spell in the Highlands which has suppressed their numbers could see the fearsome predators come back with a "bang".
Scientists at Dundee-based APS Biocontrol Ltd say the biting pests usually emerge in two (and sometimes in very unlucky summers, three) waves with the first having already appeared in early to mid-June.
However, the second wave has seemingly been delayed by the hot, dry weather in the north, which isn't ideal for the vicious insects to survive, reports the BBC.