Sand flies are about 1/8 of an inch long, and have hairy, brownish-gray wings. They hold their wings above their bodies in a “V” shape and are most active between dusk and dawn. The larvae look like worms. They're found mainly in tropical and subtropical climates.

Where are sand flies found?

Sandflies mostly breed in salt mashes; nevertheless other species breed in fresh water areas and tree holes. Larvae of sandflies are found in mud, sand and debris around the ends of the ponds, creeks springs, lakes, in tree holes or in slimy covered bark.

How do sand flies bite you?

The female midge has piercing and sucking mouth parts, which suck blood and cause the classic allergic response. A bite is made in the skin and saliva is injected to prevent blood clotting, thereby allowing the blood to be sucked up.