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Giant weta

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Giant weta

Giant weta
Poor Knights Islands giant weta
Deinacrida fallai
Overall length 20 cm (8 inches)
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Orthoptera
Family: Anostostomatidae
Genus: Deinacrida
White, 1842
Species

See text.

Giant weta are several species of weta in the genus Deinacrida of the family Anostostomatidae. Giant weta are endemic to New Zealand and are examples of island gigantism.

There are eleven species of giant weta, most of which are larger than other weta, despite the latter already being large by insect standards. Large species can be up to 10 cm (4 in) not inclusive of legs and antennae, with body mass usually no more than 35 g. One captive female reached a mass of about 70 g (2.5 oz.), making it one of the heaviest documented insects in the world[1] and heavier than a sparrow. This is, however, abnormal, as this individual was unmated and retained an abnormal number of eggs. The largest species of giant weta is the Little Barrier Island giant weta,[2] also known as the wetapunga. One example reported in 2011 weighed 71 g,[3] and a 72 g specimen has been recorded.[4]

Giant weta tend to be less social and more passive than other weta. Their genus name, Deinacrida, is Greek for "fierce grasshopper". They are found primarily on New Zealand offshore islands, having been almost exterminated on the mainland islands by introduced mammalian pests.

Species list

References

  1. ^ "Book of Insect Records". 
  2. ^ Jessica Satherley (2011-12-01). "Meet the world's heaviest insect, which weighs three times more than a mouse... and eats carrots".  
  3. ^ "World's biggest insect is so huge it eats carrots". Telegraph. 2011-12-01. Retrieved 2012-08-26. 
  4. ^ Crispe, Imogen (4 December 2011). "Weta minute - he's a wee 'un". The New Zealand Herald. Retrieved 23 December 2011. 

External links

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