Throughout the English-speaking world ‘gnat’ is usually reserved for small, biting flies, allied to mosquitoes but most of the groups for which British entomologists have used the word do not bite. Note that the only groups of British Diptera which ‘bite’ (and only female flies do so) are species of Culicidae (mosquitoes), Scatopsidae (blackflies), ceratopogonidae (biting-midges), Tabanidae (horseflies) and Muscidae (houseflies and allies). In some parts of the world Ceratopogonidae are called ‘no-see-ums’ because females are small, do not whine like mosquitoes, and attack en masse, producing a large number of suppurating spots.
Little buggers got me good tonight at Hamsterley Forest. Gnats. Millions of ’em.
R O T H A R . C O M 
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