Webster's Revised Unabridged Dictionary · 1913

Midge

Midge , noun

[Old English migge, Anglo-Saxon mycge; akin to Old Saxon muggia, Dutch mug, German mucke, Old High German mucca, Icelandic m{not transcribed}, Swedish mygga, mygg, Danish myg; perh. named from its buzzing; compare Greek {not transcribed} to low, bellow.]

1.
Any one of many small, delicate, long-legged flies of the Chironomus, and allied genera, which do not bite. Their larvae are usually aquatic.
2.
A very small fly, abundant in many parts of the United States and Canada, noted for the irritating quality of its bite.

The name is also applied to various other small flies. See Wheat midge, under Wheat.