heel fly


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Related to heel fly: cattle grub

heel fly


[So called because it lays its eggs on the legs of cattle and other mammals.]

cat′tle grub`


n.
the larva or adult of a warble fly, esp. Hypoderma lineatum, a common pest of cattle in North America.
[1925–30]
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References in periodicals archive ?
The third-stage larvae, now triumphantly exiting the skin, had started their journey about a year ago when a heel fly had deposited its eggs on the legs of the steer.
My first order of business was to inform the owner of the steer that there was no risk to other animals or humans, since the emerging grubs simply fall to the ground to pupate for several months until a new heel fly emerges.
The grubs are larvae of the heel fly, which lays its eggs on the hair of a calf's leg.