Phyllobius glaucus is a species of weevil found across Europe, especially in carrs.

The body is black, but is covered with elongate, hair-like scales that give the animal a very variable, greenish-brown appearance.

[2][3] A single specimen of P. glaucus (under the name P. calcaratus) has been recorded from Canada, but this is thought to be an error.

[1] The insects chew small holes in the leaves and petals of the trees.

[1] It is a typical component of the fauna of alder carr in northwestern Europe.