Ctenomorphodes chronus

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Ctenomorphodes chronus
Ctenomorpha chronus02.jpg
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Phasmatodea
Family:
Phasmatidae
Genus:
Ctenomorphodes
Species:
C. chronus
Binomial name
Ctenomorphodes chronus
Gray, 1833
Synonyms
  • Acrophylla chronus Kaup, 1871
  • Acrophylla scutigera Redtenbacher, 1908
  • Acrophylla tasmanensis Lea, 1902
  • Ctenomorpha marginipenne Gray, 1833
  • Ctenomorpha marginipennis Gray, 1833
  • Ctenomorpha oxyacantha Redtenbacher, 1908
  • Ctenomorpha phyllocerca Redtenbacher, 1908
  • Diura chronus Gray, 1833
  • Lopaphus macrotegmus Tepper, 1887

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Ctenomorphodes chronus is a species of stick insect endemic to southern Australia.

Description

File:Ctenomorphodes chronus & Match.jpg
Ctenomorphodes chronus next to matchstick to show scale

C. chronus resembles a eucalyptus twig and can grow up to 18 cm in length.[1] The males are long and slender, have full wings and can fly. The females are larger with blackish hind wings. The wings of the females are smaller than those of the males. The wings are obscurely spotted with white colour and have a green coastal area, irregularly marked with black. The legs and head (prothorax) are light pinkish brown, with the legs being dentated. The mesothorax, tegmina, abdomen and leaflets, are all blackish green. The mesothorax has small black tubercles. The abdomen contains numerous spots. Each segment is tipped with black colouration. The leaflets are somewhat dentated, and are fairly long.[2][3]

The pupae are similar to the older stage, but the rudimentary wings are spotted with white.[2]

This species can usually be distinguished from other members of the same genus by the appearance of their eggs.[1]

Distribution and habitat

This species is quite common in heaths and woodlands from central New South Wales south to Victoria, but prefers coastal environments.[1][2]

Reproduction

File:Eggs ctenomorpha chronus.JPG
Eggs of Ctenomorpha chronus

The female lays 3 mm elliptical eggs that look like plant seeds.[3] Like most phasmids, C. chronus flicks its eggs on the soil, where a little knob called the capitullum attracts ants to carry them to the ant refinery, where they hatch.[4] This species is parthenogenetic. Males can even mate with species other than their own, which can create new species.[2]

Ecology

C. chronus feeds on leaves from the eucalyptus tree as well as other tree species. It is a twig mimic, its body shape and coloration making it well camouflaged among eucalyptus twigs.

See also

Further reading

  • Balderson, J., Rentz, D.C.F. and Roach, A.M.E. (1998). in Houston, W.K.K. & Wells, A. (1998) (eds) Zoological Catalogue of Australia. Vol. 23. Archaeognatha, Zygentoma, Blattodea, Isoptera, Mantodea, Dermaptera, Phasmatodea, Embioptera, Zoraptera. Melbourne: CSIRO Publishing, Australia (ISBN 0643 06035 9). pp. 347 – 376.
  • Brock, P.D. (1999). Review, Zoological Catalogue of Australia. Bulletin of the Amateur Entomological Society, 58: 177-178.
  • Campbell, K. G., Hadlington, P., 1967. The biology of the three species of phasmatids which occur in plague numbers in forests of south eastern Australia. Forestry Commission NSW Res. Note No. 20, 38 pp.
  • Clark, J.T. (1976). The eggs of stick insects (Phasmida): a review with descriptions of the eggs of eleven species. Syst. Ent. 1: 95-105.
  • Hughes, L., 1996. When an Insect is more like a Plant. Nature Australia, 25(4): 30-38
  • Gray, G.R. (1833). The Entomology of Australia in a Series of Monographs. Part 1. The monograph of the genus Phasma. London: Longman & Co. 28 pp. 8 pls
  • Gray, G.R. (1834). Descriptions of several species of Australian Phasmata. Transactions of the Royal Entomological Society of London, i, 1 (7 November), pp. 45–46.
  • Gray, G.R. (1835). Synopsis of the Species of Insects Belonging to the Family of Phasmidae. 48pp. (Longman, Rees, Orme, Brown, Green and Longman: London.)
  • Lea, A.M. (1902). Notes on some remarkable Tasmanian invertebrates. Pap. Proc. Royal Society of Tasmania, 1902: 81-82.
  • Readshaw, J. L. (1965). A theory of Phasmatid outbreak release. Australian Journal of Zoology, 13: 475-90
  • Rainbow, W.J. (1897). Catalogue of the described Phasmidae of Australia. Records of the Australian Museum, 3(2), 37-44. [Note that he made a mistake re Extatosoma popa and E. tiaratum according to Gurney, A.B. (1947). Notes on some remarkable Australasian walkingsticks, including a synopsis of the Genus Extatosoma (Orthoptera: Phasmatidae). Annals of the Entomological Society of America. 40(3): 373-396. .]
  • Rentz, D.C.F (1996). Grasshopper Country, Chapter 16, Phasmatodea: Leaf and Stick Insects, pp. 244–257
  • Tepper, J.G.O. (1887). Description of a supposed new species of Phasmidæ. Transactions of the Royal Society of South Australia, 9 (1885–86): 112-113, pl. vi. [Published March, 1887.]
  • Tepper, J.G.O. (1902). List of the Described Genera and Species of the Australian and Polynesian Phasmidæ (Spectre-Insects). Transactions of the Royal Society of South Australia, 26: 278-287.
  • Vickery, V.R. (1983). Catalogue of Australian stick insects (Phasmida, Phasmatodea, Phasmatoptera, or Cheleutoptera). CSIRO Australian Division of Entomology Technical Paper, No. 20, 15 pp.

References

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  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.

External links

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