Unseen insect biters are probably "No-see-ums"--a midge also known as "Flying Jaws". They're out at dawn and dusk, and target ankles and elbows.
Maggies Farm repellent is very successful in keeping them away.
Quote:
Originally Posted by sunfishman
Here is a picture of a biting fly that I killed recently at the beach. They are quite quick, and you have to be willing to let it start to bite you in order for you to nail it. Insectologists,? please zoom in and tell us what it is. They have been plentiful this year.
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That's a stealthy "Stable Fly". They're in the
Horse Fly family, but look like an ordinary
House Fly. The mouth parts of the ordinary
House Fly look like a plunger, while those of a
Stable Fly look like a dagger. Swat one, and a blood trail is proof.
The Deer Fly has stripes on its wings (as pictured), lands first on your head, circles you a few times, then stealthily bites exposed skin. Wait several seconds after first sighting one, then swat it with a rolled-up magazine when it lands on your calf. The "deer" fly spares no mammal, and leaves a blood trail when swatted. In states to the south, expect some yellow/orange coloration. Wear white clothing to discourage them.
The Horse Fly is comparatively mammoth in size, is stealthy, and is readily consumed by dragonflies in the Darner family. You won't see both at the same time--for long!
Maybe a dragonfly decal on your boat's deck will keep them away?