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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Bostrichoidea » Horned Powder-post Beetles (Bostrichidae) » Bostrichinae » Bostrichini » Amphicerus » Apple Twig Borer (Amphicerus bicaudatus)

Species Amphicerus bicaudatus - Apple Twig Borer

Classification · Other Common Names · Synonyms and other taxonomic changes · Explanation of Names · Size · Identification · Range · Habitat · Food · Life Cycle · Works Cited

Amphicerus bicaudatus (Say) - Amphicerus bicaudatus

Dark reddish, cylindrical beetle - Amphicerus bicaudatus

Some Amphicerus sp.? - Amphicerus bicaudatus

Bostrichid beetle--Prostephanus punctatus? - Amphicerus bicaudatus

Apple Twig Borer? - Amphicerus bicaudatus

One of the Amphicerus? - Amphicerus bicaudatus

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga

Superfamily Bostrichoidea

Family Bostrichidae (Horned Powder-post Beetles)

Subfamily Bostrichinae

Tribe Bostrichini

Genus Amphicerus

Species bicaudatus (Apple Twig Borer)

Other Common Names

Grape Cane Borer

Synonyms and other taxonomic changes

this species used to be called Amphicerus hamatus (Fabricius 1787), but that name is in fact a syn. of Apate terebrans (Pallas 1772)(1)

Explanation of Names

Amphicerus bicaudatus (Say 1824)

Size

6-13 mm(2)

Identification

Strongly dimorphic: Male with two dentiform projections on declivity, and pronotum with concave front margin, edges cornute; in females, declivity with blunt hump, pronotum apically rounded/truncate

♂

♀

Range

NA east of the Rockies (QC-NT to FL-NM)(3)(4)

Habitat

injured/dying/recently dead trees(4)

Food

hosts: deciduous trees(2); may attack pecan, peach, plum, apricot, pear, ash, butternut, hickory, maple, apple and grape (Mulder 2014)

Life Cycle

one generation/yr; adults overwinter (mostly head downward in larval galleries)(4)

Works Cited

1.	Additions and corrections to Borowski and Węgrzynowicz's world catalogue of Bostrichidae (Coleoptera) Ivie M.A. 2010. Zootaxa 2498: 28–46.

2.	Beetles of Eastern North America Arthur V. Evans. 2014. Princeton University Press.

3.	Checklist of beetles (Coleoptera) of Canada and Alaska. Second edition Bousquet Y., Bouchard P., Davies A.E., Sikes D.S. 2013. ZooKeys 360: 1–402.

4.	Guide to insect borers in North American broadleaf trees and shrubs Solomon, J.D. 1995. USDA Forest Service Agriculture Handbook. 735 pp.

Contributed by Will Chatfield-Taylor on 9 December, 2008 - 9:47pm
Additional contributions by Mike Quinn, Boris Bueche, v belov
Last updated 4 July, 2023 - 2:12pm

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