羽虫
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Meanings
1
biting louse; chewing louse
Technical term for lice of the order Mallophaga, which feed on feathers, skin, or debris of birds and mammals. Not a common everyday word.
See also: ハジラミ
Biting lice can sometimes be found among bird feathers.
2
small winged insect; flying ant; termite alate
Colloquial term for any small flying insect, especially swarming ants or termites. Often used when the exact species is unknown or unimportant.
See also: 羽アリ
At night, a lot of small winged insects came in because I had the window open.
During the rainy season, you often see small winged insects flying around.