Aularches miliaris

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Aularches miliaris
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Orthoptera
Family: Pyrgomorphidae
Genus: Aularches
Species: Aularches miliaris
Aularches miliaris, showing some foam

Aularches miliaris is a grasshopper found in south and southeast Asia. It is protected by powerful chemical defences, and its warning colour signals its foul taste.

When it is disturbed or grabbed, it makes a sharp rasping noise with its thoracic segments. Then, if its thorax is pinched, it gives off a toxic foam.[1][2] It squirts a clear viscous mucus with unpleasant smell and a bitter taste, faintly alkaline, with many bubbles. This foam comes out as a strong jet from openings in the thorax, and more gently from other openings in the body (ten in total). The foam heaps up around the insect and partly covers it.[1]

Colouring and behaviour[change | change source]

The head and thorax are dark green with a canary-yellow band on the side. The leathery front wings are green with many yellow spots; the legs are blue, with a yellow serrated pattern on the hind legs. The abdomen is black with bright red bands.[1]

Like most noxious animals, it is very visible and slow-moving on vegetation.[1] It pays to advertise, and it does not need to hide.

References[change | change source]

  1. 1.0 1.1 1.2 1.3 Hingston R.W.G. (1927). "The liquid-squirting habit of oriental grasshoppers". Transactions of the Entomological Society of London 75: 65–69. doi:10.1111/j.1365-2311.1927.tb00060.x.
  2. (2013) Aularches miliaris miliaris (Linnaeus, 1758) from Orthoptera Species File (OSF) Online. Accessed on 2013-01-29.

Other websites[change | change source]