Your are here:

auger beetle

Scientific Name
Dinoderus scabricauda
Scientific Author
Lesne, 1914
(Coleoptera: Bostrichidae: Dinoderinae)
Exotic species - absent from Australia

Page menu options:

Diagnostic Images

Dorsal view - male
AQIS Melbourne intercept ex Vietnam from rattan woven basket 25 Nov 2009, leg. D. Steward, det. A. Broadley
Ken Walker Museum Victoria
Image Options
Diagnostic Images (9)
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. scabricauda include:

- Body length 3.5mm

- Antennae 11 segmented

- Antennal scape with two long club-shaped hairs

- Second segment of the anterior tarsus shorter than either segment 3 or segment 4

- Basal half of pronotum with two distinct excavations near midline

- Scutellum rectangular

- Colour black to dark brown

- Anterior teeth with 4 on each side, middle two widely separated.


Source: Graham Goodyer 2008 (unpublished) Identification of Bostrichid beetles to Genus and Species.

Length c. 3.5mm; foretarsal segments all subequal in length; antennae 11 segmented; basal half of pronotum with two distinct excavations near midline; scutellum rectangular; colour black to dark brown; anterior teeth with 4 on each side, middle two widely separated.
More Information
Walker, K.
02/12/2009 04:11 AEST
Last Updated
21/10/2011 09:42 AEST
Walker, K. (2009) auger beetle (Dinoderus scabricauda) Updated on 10/21/2011 9:42:19 AM Available online: PaDIL -
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License