Definitions of botfly

n stout-bodied hairy dipterous fly whose larvae are parasites on humans and other mammals

Gasterophilus intestinalis, horse botfly
parasitic chiefly on horses
Dermatobia hominis, human botfly
large tropical American fly; parasitic on humans and other mammals
Oestrus ovis, sheep botfly, sheep gadfly
larvae are parasitic on sheep
Type of:
any of various large flies that annoy livestock

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