Corethrellidae are a family of biting midges, small flying insects belonging to the order Diptera, females of which feed on the blood of frogs.

[2] Adult female Corethrella are attracted to the mating calls of male frogs, their chosen host taxa.

Because of this, Corethrella follow typical distribution patterns of external parasites and are restricted to only areas with abundant populations of their host frogs.

[1] Corethrella species have been observed sucking blood from individuals of the tree frog genus Hyla.

[1][4] The family contains members that date to the lower Cretaceous Period some 110 million years ago.