Fid--a very small insect, (smaller than the .(dot/full stop) used in average newpaper). It lives in the deep woods, and is lives it entire life cycle in a single day. Its entire lifecylce is hatching, mating, laying eggs, and dying. the eggs are layed on plant material, they hatch, and eat the plant material, drop to ground as larva, and spend the next 364 days, burrows.

What make the Fid dangerous, is, it swarms, and will attack living thing for protein for its eggs. Their saliva has a potent nerve toxin, (to help immobilize the prey.)

Caught in a swarm, a human adult can be immobiled in second, and dead with in 15 minutes.
Fids can be found temperate forest of south america. several colonies of fid have been found in NA, and authorities are worried that the animal might be now making its home here.

The next time you see a swarm of nosee'um, it might actualy be a swarm of fids.