Carl Linnaeus, The Lapland Journey, translated by Peter Graves (Edinburgh: Lockharton Press, 1995), p. 104.
The Prefecture of Luleå [1], 26/06/1732, ¶511:
The biting gnat is a little mosquito, far smaller than any other mosquito, being about the size of a large flea and whitish grey or smoke coloured. It bites viciously and leaves behind a black patch the size of a big fleabite.