Stenodema laevigatum

Stenodema laevigatum, or sometimes Stenodema laevigata (also called Grass bug),[1] is a species of bug from Miridae family. The species have a gray to brown elongated body, with the eyes located backwards in the head.[2] Sometimes they might come in green colour.[3] They are 8–10 millimetres (0.31–0.39 in) in length, which makes it a rather big species of its kind.[2] They are common in the United Kingdom, and throughout the rest of Europe.[4] then east across the Palearctic through Asia Minor and the Caucasus to northern China.

Stenodema laevigatum
Stenodema laevigata, Farchynys, North Wales
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Class:
Insecta
Order:
Hemiptera
Suborder:
Heteroptera
Infraorder:
Cimicomomorpha
Superfamily:
Miroidea
Family:
Miridae
Subfamily:
Mirinae
Genus:
Stenodema
Species:
S. laevigatum
Binomial name
Stenodema laevigatum

Description

Adults are 7–10 millimetres (0.28–0.39 in) long. The species are of light-green colour, but can come in yellow or brown.[5] The species lacks femoral spurs, and have densely pitted prothorax.

Ecology
Habitat, Ireland

The larvae is light yellowish and is born in summer, with adults taking over by August. Adults and larvae are both feeding on unripe grains, which includes: Alopecurus, Dactylis, Festuca and wheat. Sometimes, larvae might suck juices from leaves and stems. They start to eat grass seeds and flowers by later development. The larvae hibernates in winter, by living in a soil, and leaf litter.[6] Both males and females mate in spring, with the males being greener than females. The larvae is active from May–July, after which the new generation appears, which will last till next spring.[7]

Camouflage

By autumn, the species turn brown, and start their overwintering. As soon as spring starts, their colour is changes to green, which camouflages them under a grass colour.[2]

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References
  1. Common name
  2. "Stenodema laevigatum". Garden Safari. Retrieved 18 February 2012.
  3. Green colour
  4. "Stenodema laevigata (Linnaeus, 1758)". Discover Life. Retrieved 18 February 2012.
  5. Description
  6. "Stenodema laevigata". Insectoid.info. Retrieved 18 February 2012.
  7. Ecology


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