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broadhorned flour beetle

Scientific Name
Gnatocerus cornutus
Scientific Author
(Fabricius, 1798)
Taxonomy
(Coleoptera: Tenebrionidae: Diaperinae)
Status
Exotic Species Occurrence in Australia
Reliability
High
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Diagnostic Images

Dorsal view - male
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Caption
Australia: Victoria, Melbourne
Source
Simon Hinkley & Ken Walker Museum Victoria
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Diagnostic Images (8)
Other Images (1)
Diagnostic Notes
Adult body length 3.5-4.5mm; eye 1-2 facets wide laterally; males have distinctive structures on the head with each mandible bearing a conspicuous, flattened, dorsal projection, the anterior margin of the head is swollen and sharply sinuate, and the frons has two small, triangular protuberances. Females have no projections on the mandible or protuberances on the frons and have the anterior margin of the head rounded and resemble species of Tribolium. Can be distinguished from Tribolium  in having the lateral edge of the pronotum continuous over the anterior margin and the intercoxal process of the prothorax parallel-sided.
More Information
Specimen Contact
Museum Victoria
Author
Walker, K.
Created
19/03/2007 10:57 AEST
Last Updated
28/07/2010 16:20 AEST
Citation
Walker, K. (2007) broadhorned flour beetle (Gnatocerus cornutus) Updated on 7/28/2010 4:20:26 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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