Jag

Jags are a non-sapient species of flying insectoid predators from the planet Lambda 771. They are the natural predators of the Radiates.

Biology
Jags are flying creatures which resemble mosquitoes, with a 30 cm body length. They have piercing jaws that perforate the eye rings of their prey and suck their body fluids. They drop on their prey from above, taking advantage of the fact that the Radiates can't see very far upwards and thus can be easily caught by surprise.

Appearances

 * Memoirs of a Spacewoman, by Naomi Mitchison (1962)