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Apple twig borer

Scientific Name
Amphicerus (Amphicerus) bicaudatus
Scientific Author
(Say, 1824)
Taxonomy
(Coleoptera: Bostrichidae: Bostrichinae: Bostrichini)
Status
Exotic species - absent from Australia
Reliability
High
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Diagnostic Notes
The genus Amphicerus belongs to the tribe Bostrichini which is characterised by the mandibles narrowing to the tip and crossing over each other.

The genus Amphicerus is distinguished by the antennal club segments with 1, 2 or 3 deep, narrow longitudinal grooves on each side of each segment.

The genus has 14 unknown species which and is divided into 2 subgenera:

Amphicerus (Amphicerus): Both sexes have horns or hooks on the anterior margin of the pronotum.

Amphicerus (Caenophrada): The female has the anterior margin of the pronotum rounded and unarmed.

Amphicerus bicaudata is distinguished by:

- Body length: 5.5-13.0

- Pronotum middle of basal half densely coarsely imbricate-punctate

- Sutural margins only slightly elevated in middle of apical declivity.

Source: Graham Goodyer 2008 (unpublished) Identification of Bostrichid beetles to Genus and Species.
More Information
Specimen Contact
Museum Victoria
Author
McCaffrey, Sarah
Created
21/11/2011 03:03 AEST
Last Updated
30/01/2012 15:50 AEST
Citation
McCaffrey, Sarah (2011) Apple twig borer (Amphicerus (Amphicerus) bicaudatus) Updated on 1/30/2012 3:50:03 PM Available online: PaDIL - http://www.padil.gov.au.
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Free for use under the Creative Commons Attribution 3.0 Australia License

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