||It has been suggested that this article be merged with Stenodema laevigatum. (Discuss) Proposed since August 2014.|
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. 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.