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bark beetle

Scientific Name
Hypothenemus eruditus
Scientific Author
Westwood, 1836
Taxonomy
(Coleoptera: Curculionidae: Scolytinae: Cryphalini)
Status
Exotic Species Occurrence in Australia
Reliability
High
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Diagnostic Images

Dorsal Image
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Caption
Brasilien: Nova Teutonia, 1944, F. Plaumann Coll. Det. K. E. Schedl, 1950
Source
Sarah McCaffrey Museum Victoria
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Diagnostic Images (10)
Other Images (7)
Diagnostic Notes

Body Length 1.0 - 1.5 mm; body colour dark brown to almost black. Anterior margin of pronotum armed with 6 teeth, lateral teeth smaller than median teeth. Frons with median groove. Pronotum anterior margin narrowly rounded, mwedium pair of serrations on anteior margin subcontiguous or very narrowly separated; Elytral ground vestiture of fine confused hairs, well-developed at least on postero-lateral part of elytra, in addition to uniseriate rows of erect interstitial scales and fine strial hairs.

 

Generic characters of Hypothenemus: Eyes emarginate, antennal club with 3 sutures indicated by rows of hairs, summit of pronotum in middle, elytral ground vestiture either absent or hairlike:

 

Key to species on PaDIL (Modified from Beaver & Maddison 1990 - see references):

 

1. Frons with a round median tubercle at level of top of eyes, shallow groove below tubercle; no ground vestiture on elytra; body; length 1.5mm Hypothenemus crudiae

 

- Frons not as above; elytral ground vestiture present or not present .. 2

 

2. Anterior margin of pronotum with 4 teeth, median pair larger; frons without a median groove; elytral vestiture scalelike on declivity; body length 1.5-2.2mm Hypothenemus birmanus


- Anterior margin of pronotum with 6 teeth, all about same size; frons with or without median groove; elytral vestiture hairlike of absent ... 3

 

3.  Frons without a median groove; ground vestiture hair type combines simple and scale like hair; body length 1.0-1.3mm Hypothenemus eruditus


- Frons with a median groove ... 4


4. Ground vestiture hair type of simple hair only; body length 1.5mm. Hypothenemus hampei


-  Ground vestiture absent; body length 1.4-1.5 Hypothenemus seriatus

More Information
Author
Walker, K.
Created
11/09/2006 10:19 AEST
Last Updated
09/03/2012 13:59 AEST
Citation
Walker, K. (2006) bark beetle (Hypothenemus eruditus) Updated on 3/9/2012 1:59:38 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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