Amphicerus bicaudatus, known generally as the apple twig borer or grape cane borer, is a species of horned powder-post beetle in the family Bostrichidae.

Color can range from reddish brown to black.

Larvae are white with a brown head and mandibles, about 10 millimeters long.

[3] Allen et al., 1991 finds some periodicity and some chaos in its population dynamics while Allen et al., 1993 finds only periodicity and quasiperiodicity.

[4] Both examine the interaction of beetle, insecticide, cane removal, and the grapevine host.