horsefly
US /ˈhɔːrs.flaɪ/
UK /ˈhɔːrs.flaɪ/

1.
mutuca, mosca-dos-cavalos
a large, stout-bodied fly with a painful bite, the female of which sucks blood from mammals
:
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I was bitten by a horsefly while hiking in the woods.
Fui picado por uma mutuca enquanto caminhava na floresta.
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The horses were bothered by swarms of horseflies.
Os cavalos estavam incomodados por enxames de mutucas.