orange fly
/ˈɒrɪn(d)ʒ ˌflʌɪ/noun
1 Angling. A fly with an orange body and black wings, used as bait; an artificial fly imitating this. Now rare.
2A fruit fly whose larvae infest oranges. rare.
Origin
Mid 17th century; earliest use found in Robert Venables (d. 1687), parliamentarian army officer. From orange + fly.