Cionus hortulanus is a species of weevils belonging to the family Curculionidae, subfamily Curculioninae.

[1][2] The genus name Cionus derives from the Greek kíonos, meaning column, with reference to the shape of the snout.

[6] These tiny beetles have a short, oblong and convex body, a conical thorax and a long thin rostrum.

The basic body color is grey-brown, with one large velvety black spot in the middle of the elytra and a smaller one at the apex.

[6] They feed on leaves of Buddleja and Verbascum species, while larvae feed on Water Figwort (Scrophularia auriculata), Common Figwort (Scrophularia nodosa)[6] and Great Mullein (Verbascum thapsus).