The Probert Encyclopaedia of Nature

CLEG

The cleg (clegg, breeze-fly, gad-fly) is a name applied to the members of the insect family Tabanidae, which are flies furnished with a lancet-like proboscis, of powerful flight, and a habit of sucking blood. It is only the female which sucks blood, and in some examples - such as the Hadrus lepidotus of Brazil - they may inflict wounds which bleed very freely. The common cleg (Tabanus bovinus) is a large insect resembling a bee which produces a deep hum which panics horses and cattle. It also attacks man, and its hard proboscis can penetrate even thick clothing.
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