Ugh. Some serious deerfly action up here in Minnesota.
Ohio Extention has more info about deer flies–how about you amuse yourself reading about the slashing/sucking mouthparts of these little bastards while I run for cover?
I did not bring my head net, and I’m regretting it right now:
“Female horse and deer flies are vicious, painful biters. They feed on the blood of cattle, horses, mules, hogs, dogs, deer, other warmblooded animals, and even humans. These flies cut through the skin with their knife-like mouthparts and suck the blood for several minutes….Deer flies seem to be attracted to moving objects and dark shapes. They attack humans especially around the face and neck areas (four to five deer flies attack at one time)”
There is a fair amount of evidence that wearing light-colored clothing attracts less deer flies.
Purdue has a nice graphic of the life cycle, BTW..
[Photo from sinkha63]