Refers to tiny biting flies of the family Ceratopogonidae; common in damp areas.
I was bitten by no-see-ums near the river on a summer evening.
Katakana spelling is common for this insect name; the word is usually written in kana.
Kanji spelling is rare and may not be widely recognized.
From 糠, “rice bran,” and 蚊, “mosquito,” describing a biting midge as a minute, bran-speck-sized mosquito-like insect.