Bug FAQSemipunctated Shield Bug
Graphosoma semipunctatum · Order: Hemiptera · Family: Pentatomidae
The semipunctated shield bug is bright red and warns predators that it is not tasty. It lives on many Apiaceae plants and can be told apart from the similar Graphosoma italicum by black dots on its pronotum and orange legs.
Source: Wikipedia
How to recognize it
Its red coloration signals that it is unpalatable to predators. It differs from G. italicum by having black dots on the pronotum instead of lines and mostly orange legs.
Source: Wikipedia
Where it lives
It is abundant on plants belonging to the Apiaceae family.
Source: Wikipedia
Lookalikes
It is very close in appearance to Graphosoma italicum. Key differences are black pronotal dots and orange legs versus the lines and darker legs of G. italicum.
Source: Wikipedia
More photos
Same family (Pentatomidae)
Brown Marmorated Stink BugHalyomorpha halysDamages trees, gardens or crops
Green Stink BugChinavia hilarisDamages trees, gardens or crops
Harlequin BugMurgantia histrionicaDamages trees, gardens or crops
Brown Stink BugEuschistus servusDamages trees, gardens or crops
Green Shield BugPalomena prasina
European Striped Shield BugGraphosoma italicumSources
- Wikipedia: https://en.wikipedia.org/wiki/Graphosoma_semipunctatum
Look it up elsewhere: GBIF · iNaturalist · BugGuide · Wikipedia
Text written 2026-10-22 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.