Definitions for "Frons"
The forehead; the part of the cranium between the orbits and the vertex.
The anterior part of the cephalon bearing the clypeus and lying between the antennulae and antennae and below the rostrum or vertex.
means the front and top of the head and is loosely translated as the face.
See upper face
The most visible part of the dragonfly's face. It's coloration is relevant in dragonfly identification.
The 'face'. Area between the eyes of a butterfly.