Pomace fly and Two-winged insects

Pomace fly noun - Any of numerous small insects whose larvae feed on fruits.

Two-winged insects and pomace fly are semantically related. In some cases you can use "Two-winged insects" instead a noun phrase "Pomace fly".

Two-winged insects noun - Insects having usually a single pair of functional wings (anterior pair) with the posterior pair reduced to small knobbed structures and mouth parts adapted for sucking or lapping or piercing.

Pomace fly and two-winged insects are semantically related. Sometimes you can replace phrase "Pomace fly" with "Two-winged insects", this phrases are similar.