Ogmograptis scribula

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Ogmograptis scribula
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Family: Bucculatricidae
Genus: Ogmograptis
Meyrick, 1935
Species:
O. scribula
Binomial name
Ogmograptis scribula
Meyrick, 1935

Ogmograptis scribula, the scribbly gum moth, is a moth of the family Bucculatricidae. It is found in the Australian Capital Territory, New South Wales and Queensland. It is responsible for producing 'scribbles' found of multiple species of Eucalypts, creating the pattern from which its name is derived.

Contents

Life cycle

The adult moth lays eggs on a depression in the bark of target eucalypt species in autumn/early winter. The larvae then burrow into the bark to the depth of the next years phellogen creating long arcs, which tighten to squiggles as they develop into larger instar stages. The second-last instar will backtrack along the original mine, doubling its width or creating a parallel track depending on species. The final instar, a caterpillar with legs, will then follow the path one last time, feeding on the nutritious scar tissue that they tree lays down in the previously damaged areas. [1]

The caterpillar then emerges and forms a cocoon at the base of the tree, and emerges as a moth ~1 month later. [1]

Distribution

The scribbly gum moth is found on the east coast of Australia, between Victoria and Southern Queensland. [2]

Patterns

The patterns created by the scribbly gum moth are only visible after the caterpillar exists the tree and the top layer of bark sheds, which historically made it difficult to identify the species which caused the marks. [1]

In 2007, Cooke and Edwards [3] argued that O. scribula was the scribbler on Eucalyptus pauciflora , but that the scribbles on other ACT species of scribbly gum ( Eucalyptus racemosa ssp. rossii, and E. delegatensis ) came from a different species of Ogmograptis , since the patterning of the scribbles was consistently different across the three eucalypt species.

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References

  1. 1 2 3 Horak, M.; Day, M.F.; Barlow, C.; Edwards, E.D.; Su, Y.N.; Cameron, S.L. (2012). "Systematics and biology of the iconic Australian scribbly gum moths Ogmograptis Meyrick (Lepidoptera : Bucculatricidae) and their unique insect–plant interaction". Invertebrate Systematics. 26: 357–398. doi: 10.1071/IS12022 .
  2. "Scribbly Gum Moth". Australian Museum. 2020-12-08. Retrieved 2024-08-29.
  3. Cooke, Julia; Edwards, Ted (2007). "The behaviour of scribbly gum moth larvae Ogmograptis sp. Meyrick (Lepidoptera: Bucculatricidae) in the Australian Capital Territory". Australian Journal of Entomology. 46 (4): 269–275. doi:10.1111/j.1440-6055.2007.00606.x. ISSN   1326-6756.