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black twig borer

Scientific Name
Xylosandrus compactus
Scientific Author
(Eichhoff, 1875)
Taxonomy
(Coleoptera: Curculionidae: Scolytinae: Xyleborini)
Status
Exotic species - absent from Australia
Exotic species - absent from Australia
Reliability
High
High
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Diagnostic Images

Posterior view
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Caption
Western Samoa, ACIAR Pacific Forest Health, Asau Nursery, R. Basford ex mahogany seedlings det. Dr Judy King 2007
Source
Ken Walker Museums Victoria
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Diagnostic Images (10)
Diagnostic Notes

Adult female body length 1.4-1.7 mm, width 0.7 to 0.8 mm; body stout, cylindrical, elongate, brown to black; transversely oriented hair tuft at base of pronotum; and long strial setae;  declivital striae with punctures clearly impressed, in rows, declivital surface shining; elytra almost evenly arched from middle of disc to apex; setae on pronotal disc more generally distributed, slightly more abundant on a transverse row in median area at base; posterior portion of pronotum shining and punctate.

The surface of the declivity is:

- in X. compactus is shining and smooth

- in X. crassiusculus it is dull and granulate

- in X. germanus it is shining.

Xylosandrus compactus is smallest (1.4-1.7mm) with strial setae on declivity present.

Xylosandrus germanus (2.0-2.3mm) which has the strial setae on declivity entirely obsolete.

Xylosandrus crassiusculus is 2.1-2.9mm .

Xylosandrus mutilatus is largest about 3.5mm

Source:

See weblinks ISSG and Featured Creatures and HISL - PEET Xyleborini

More Information
Author
Walker, K.
Created
01/03/2008 06:03 AEST
Last Updated
25/11/2011 10:32 AEST
Citation
Walker, K. (2008) black twig borer (Xylosandrus compactus) Updated on 11/25/2011 10:32:26 AM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)

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