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auger beetle

Scientific Name
Dinoderus brevis
Scientific Author
Horn, 1878
(Coleoptera: Bostrichidae: Dinoderinae)
Exotic species - absent from Australia

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Diagnostic Images

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Diagnostic Images (7)
Diagnostic Notes
The subfamily Dinoderinae is characterised by:

- Hind coxae contiguous or closely approximated

- Pronotum hood-like; head deeply inserted into the pronotum underneath, head not entirely visible from above

- Pronotum with posterolateral carina but carina not present along entire lateral margin

- Pronotum anterior margin rounded or conical shaped or truncate

- Pronotum with medium tooth most prominent

- Head with plane or labrum angled downwards from a raised clypeus

- Tarsal segment 1 as long as or longer than segment 2; Segment 3 as long as or longer than segment 2

The genus Dinoderus is characterised by:

- Body length: 2.2-4.5mm

- Pronotum with posterolateral carina (in some species weakly developed)

- Elytra not more than 2.0x as long as pronotum

- Second antennal segment distinctly less than half as long as the first

There are 26 known species in this genus:

Diagnostic characteristics for D. serriger include:

- Body length 2.5-3.0mm

- Antennae 11-segmented

- Foretarsal segement all subequal in length

- Pronotum with two distinct excavated areas on basal half

- Pronotum anterior marginal teeth 6-8 conspicuously large, separated and acutely rounded at apices, the middle two largest and widely separated, especially in females

- Elytra disc circular, punctuation nearly uniform, but irregularly distributed and not all in longitudinal rows

- Hairs in apical declivity less dense and a little longer than on rest of elytra.

Source: Graham Goodyer 2008 (unpublished) Identification of Bostrichid beetles to Genus and Species.

More Information
Walker, K.
30/05/2005 04:51 AEST
Last Updated
21/10/2011 09:42 AEST
Walker, K. (2005) auger beetle (Dinoderus brevis) Updated on 10/21/2011 9:42:18 AM Available online: PaDIL -
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Free for use under the Creative Commons Attribution 3.0 Australia License