Moth with long proboscis

Moth with long proboscis

Observation - Moth with long proboscis - UK and Ireland. Description: The snout is not a replacement for antennae and has visible internal structure (Image 3). Has it some function then in addition to what the antennae provide?

The snout is not a replacement for antennae and has visible internal structure (Image 3). Has it some function then in addition to what the antennae provide?