Closterotomus norwegicus

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Closterotomus norwegicus
Closterotomus norvegicus MHNT.jpg
Scientific classification
C. norvegicus
Binomial name
Closterotomus norvegicus
(Gmelin, 1790)[1]

Closterotomus norvegicus (also known as the potato capsid) is a species of bugs belonging to the family Miridae, subfamily Mirinae.[2] It can be found feeding on nettle, clover,[3] and cannabis,[4] as well as Compositae, potatoes, carrots and chrysanthemums.[5] They prefer to feed on the flowers, buds and unripe fruit.[6] The species occurs in Great Britain and continental Europe. In 1997 it was moved from the Calocoris genus to its current name.[7]


The species is green coloured as a nymph, but when they get to adulthood the colour changes to reddish brown. It does however, vary by territory; for example, specimens from northern Britain are brownish black. The prothorax has two spots, while its scutellum has dark marks.[3]


  1. ^ Johann Friedrich Gmelin. "Cimex norwegicus" (PDF). Caroli a Linné, Systema naturae Ed. XII; Tom. 1, Pars. 4b. p. 2176. Retrieved June 12, 2014.
  2. ^ As Calocoris norvegicus in  Wheeler, Alfred George; Henry, Thomas J. (1992). A synthesis of the Holarctic Miridae (Heteroptera): distribution, biology, and origin, with emphasis on North America. Lanham, Maryland: Entomological Society of America. p. 32, Map 8. ISBN 978-0-938522-39-3.
  3. ^ a b "Closterotomus norwegicus". British Bugs. Retrieved October 12, 2013.
  4. ^ McPartland, J. M. (1996). "Cannabis pests". Journal of the International Hemp Association. 3 (2): 49, 52–55. Archived from the original on February 22, 2001.
  5. ^ Southwood, Richard; Leston, Dennis (1959). Land and water bugs of the British Isles. London: F. Warne. p. 291.
  6. ^ Edkins, Keith. "Potato capsid Closterotomus norwegicus". Photos of Insects in Cambridge. Edkins Family Index Page. Retrieved March 3, 2016.
  7. ^ Rosenzweig, V. Y. (1997). "Revised classification of the Calocoris complex and related genera (Heteroptera: Miridae)". Zoosystematica Rossica. 6 (1/2): 139–169. Archived from the original on January 26, 2014.