Amphicerus bicaudatus

Distinguished from other Bostrichidae by its cylindrical body form and size range. The combination of adult color variation (reddish brown to black) and association with woody host plants helps separate it from similar powder-post beetles. Larval identification relies on the white body with contrasting brown head and mandibles.

Adults are long and cylindrical, measuring 6–13 millimeters in length. Body color ranges from reddish brown to black. Larvae are white with a brown head and mandibles, reaching approximately 10 millimeters in length.

Associated with cultivated orchard trees, grapevines, and other woody tree species. Inhabits twigs and canes of host plants.

Recorded from North America, with specific distribution records from Manitoba, Canada and the Northern Territory, Canada.

Larvae bore into and feed on woody tissues of host plants including apple, grape, and other tree species.

• Malus - pestorchard trees
• Vitis - pestgrapevines
• various tree species - pestother woody hosts

Adults and larvae bore into twigs and canes of host plants, causing damage to cultivated crops. Population dynamics have been observed to exhibit periodicity, quasiperiodicity, and under some conditions chaotic patterns.

Pest species affecting cultivated woody plants; population dynamics are influenced by interactions with insecticide application, cane removal practices, and host plant availability.

Agricultural pest of economic significance in orchards and vineyards. Management involves insecticide application and physical removal of infested canes.

• Other BostrichidaeSimilar cylindrical body form; distinguished by host association, size range, and coloration.

• pest
• agricultural
• vineyard
• orchard
• powder-post beetle
• bostrichid
• wood-borer

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life