noun
- small dark-colored biting flies that are common near streams and rivers
Examples
- The blackflies were so thick near the waterfall that we had to wear head nets.
- Blackflies are most active during the day, unlike mosquitoes.
- The hikers applied insect repellent to protect themselves from blackflies.
- Blackflies can make outdoor activities unpleasant in certain regions.
- The female blackflies need blood meals to produce their eggs.
- Blackflies typically breed in fast-flowing streams and rivers.