Julodimorpha bakewelli

Julodimorpha bakewelli is a species of beetles in the family Buprestidae.

Julodimorpha bakewelli
Julodimorpha bakewelli from Australia
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Coleoptera
Suborder:
Polyphaga
Superfamily:
Buprestoidea
Family:
Buprestidae
Genus:
Julodimorpha
Species:
J. bakewelli
Binomial name
Julodimorpha bakewelli
(White, 1859)
Synonyms
  • Stigmodera bakewellii (White, 1859)

Description

Julodimorpha bakewelli can reach a length of over 40 millimetres (1.6 in). These large brown buprestids have an elongate and almost cylindrical body. The head is almost hidden when the beetle is viewed from above. Pronotum is dark brown and quite wide at the base. Elytra are brown, wider than pronotum and densely striatopunctated.

Adults are diurnal and herbivore. They are reported to breed in roots and trunks of Eucalyptus species (Myrtaceae). Larvae are root-feeder. Both larvae and adults are present on flowers of Acacia calamifolia (Mimosaceae).

Observations on mating behaviour

The males of this species have the habit to aggregate on and attempting to copulate with discarded brown "stubbies" (a type of beer bottles). The males are apparently attracted by the refraction of light produced by the glass bumps of the bottles, resembling giant females with a very similar colour and surface. Consequently to this behaviour the species is actually threatened. Prof. Darryl Gwynne, from the Toronto University, and David Rentz have achieved the Ig Nobel Prize for their studies on Julodimorpha species behaviour.[1][2] This behavior is often given as an example of a Supernormal stimulus.

Distribution

This species can be found in the arid and semi- arid areas of Queensland, New South Wales, South Australia, Victoria and Western Australia.

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References
  1. Gwynne, Darryl T.; Rentz, David C. F. (February 1983). "BEETLES ON THE BOTTLE: MALE BUPRESTIDS MISTAKE STUBBIES FOR FEMALES (COLEOPTERA)". Australian Journal of Entomology. 22 (1): 79–80. doi:10.1111/j.1440-6055.1983.tb01846.x. ISSN 1326-6756.
  2. Amos, Jonathan (2011-09-29). "Beetle's beer bottle sex wins Ig Nobel Prize". BBC News. Retrieved 2020-07-13.

Further reading


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