Facts about Black Flies: Black flies
Small humpbacked flies that develop in clear running water, unlike mosquitoes
The adults live for about 2-3 weeks
Females feed on blood, males on nectar
Black flies bite in the middle of the day and like dark colors
As the female bites, she injects saliva into the skin, which is highly irritating and leads to swelling and itching
Females deposit from 150 to 500 eggs in submerged vegetation. The eggs hatch in four to five days.
Mayflies