Dictyophorus spumans

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Koppie foam grasshopper
Koppie foam grasshopper (Dictyophorus spumans spumans) 3.jpg
Koppie foam grasshopper (Dictyophorus spumans spumans) nymph.jpg
Adult above, nymph below
both D. s. spumans in Walter Sisulu National Botanical Garden, South Africa
Scientific classification
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D. spumans
Binomial name
Dictyophorus spumans
(Thunberg, 1787)
Synonyms
  • Gryllus spumans
  • Poecilocera spumans
  • Petasia spumans
  • Phymateus spumans
  • Tapesia spumans [1]

Dictyophorus spumans, the koppie foam grasshopper or rooibaadjie, is a species of grasshopper in the family Pyrgomorphidae indigenous to southern Africa. The name "foaming grasshopper" derives from the insect's ability to produce a toxic foam from its thoracic glands. [2] It is closely related to Phymateus .

Contents

Adult males are typically 4.5–5 cm (1.8–2.0 in) long and females typically 5–7 cm (2.0–2.8 in), [3] but can grow up to a length of 8 cm (3.1 in). [4] The neck shield has a warty surface, and their colors are highly variable but usually with at least parts that are contrasting and bright. It is toxic due to the poisons that it sequesters from its diet, which includes a large number of toxic and distasteful plants such as milkweed. [4]

Subspecies

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<span class="mw-page-title-main">Pyrgomorphinae</span> Subfamily of grasshoppers

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<i>Dictyophorus griseus</i> Species of grasshopper

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<i>Chromacris</i> Genus of grasshoppers

Chromacris is a genus of lubber grasshoppers in the family Romaleidae. The nine described species in Chromacris are found in Mexico, Central America, or South America. They often have bright aposematic colors and they are presumed to be toxic.

<i>Tropidacris cristata</i> Species of grasshopper

Tropidacris cristata, the giant red-winged grasshopper, is a widespread species of lubber grasshopper in the family Romaleidae from tropical South and Central America, and Mexico. It is among the largest grasshoppers in the world by length and wingspan, reaching up to 14.5 cm (5.7 in) and 24 cm (9.4 in) respectively. More typical adult lengths are 5.5–7 cm (2.2–2.8 in), average 6.5 cm (2.6 in), in males and 7–12 cm (2.8–4.7 in), average 11 cm (4.3 in), in females. As suggested by the common name, adult T. cristata have conspicuously red wings in flight, although the exact red hue varies. The flightless and gregarious nymphs have aposematic dark-and-yellow stripes and are presumed to be toxic.

<i>Dictyophorus</i> Genus of grasshoppers

Dictyophorus is the type genus of grasshoppers in the tribe Dictyophorini, of the family Pyrgomorphidae; it is native to sub-Saharan Africa. The genus was named by Carl Peter Thunberg in 1815. They are relatively large, typically about 4–7 cm (1.6–2.8 in) long, and often have bright colurs warning of their toxicity.

References

  1. Googlebooks
  2. Whitehouse, Christopher (6 October 2015). "Foaming Grasshoppers". Phillipskop Mountain Reserve. Phillipskop Discovery Trails (Pty) Ltd. Retrieved 18 March 2018.
  3. Whitman, D.; Vincent, S. (2008). "Large size as an antipredator defense in an insect". Journal of Orthoptera Research. 17 (2): 353–371. doi:10.1665/1082-6467-17.2.353.
  4. 1 2 Mike Picker, Charles Griffiths & Alan Weaving (2004). Field guide to insects of South Africa. Struik. ISBN   978-1-77007-061-5.

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