Thunderflies are tiny insects that appear in large numbers during certain seasons. They’re also referred to as thrips or thunderbugs.
They come from near water sources and lay eggs in damp soil or vegetation. Thunderflies do not bite or sting humans.
Unlike mosquitoes or gnats, they do not possess mouthparts designed for piercing skin and sucking blood. They feed on decaying matter, pollen, and plant sap. They are attracted to sunlight and warmth.
While they can be bothersome when they gather in swarms, they are harmless. To deal with them, you can use screens on windows, a vacuum or swat them if they get inside.
You should also minimize outdoor lighting at night and keep windows and doors closed if they’ve become a recurring problem. Thunderflies are most prevalent during warm and humid weather conditions, particularly in the spring and summer months.
For further information about thunderflies, you can find more detail here.
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