OK everyone again the noseeums confusion!
I have done quite a lot of research on bugs on Eleuthera, because of our past experience with different bites we received.
1. There are flies on the island that look like smaller version of our house flies. Yes they bite like the ones by our home in summer. These of course are not noseeums, because you can see them. They do hang around garbage like the standard flies. Can these be called sand flies? I suppose.
2. Now there are SAND FLEAS, not like SAND FLIES. Sand fleas are not an insect, they are a crustacean. So small you can not see them. They DO NOT FLY, but only jump (about 50cm or so). They live on the beach, in seaweed on the beach, in piles of casuarinas leaves, wood decks etc... They mainly attack your ankles, and lower legs, unless you are lying down. The females use an enzyme to penetrate your skin. They live under your skin feeding off blood. They poke out an air tube to breathe while there. That’s why some sand flea bites get worse over the days.
3. Noseeums mosquito’s - Now there is the mosquito issue in the Caribbean, and Florida. These mosquito’s are so small it very hard to see them (hence forth the nickname noseeums). Yes they fly of course, usually at dawn, and dusk. You will encounter them in shaded areas during the day in foliage also. I saw them coming at me when I was pulling a kayak up a beach path near dusk. It seemed they might have had a tan hue to them. Not easy to see at all.
OK then the battle rages on! Know your enemies.
A. The standard Fly is not so bad.
B. The noseeum Mosquito bite is very irritating, and they fly.
C. Sand Fleas are the worst as they jump, then bury in your skin.
So in conclusion B & C could both be called noseeums.
Solutions for B. & C. - Truthfully not much helps. The wind is a great factor in keeping away both B & C, that’s why the windward (Atlantic) side of the island is favored. One local told me he just goes indoors at dusk when the mosquito’s come out.
Islanders say you build up immunity the more your on Eleuthera.