About Shield Bug
Also called stink bugs for the foul-smelling liquid they release when disturbed. Changes color from bright green in summer to bronze-brown before overwintering.
Did You Know?
Shield bugs can change color with the seasons — they produce green pigment in summer for leaf camouflage and switch to brown in autumn as leaves change.
How to Identify Shield Bug
Shield Bug (Palomena prasina) belongs to the order Hemiptera, family Pentatomidae. Adults typically measure 12-14 mm.
Shield Bug Habitat
Shield Bug is found in underground habitats, particularly across Europe, Asia. This species has adapted to thrive in its preferred environment, where it can find suitable food sources and shelter.
Shield Bug Diet and Feeding
Shield Bug feeds on plant sap by piercing stems and leaves with specialised mouthparts. Sap feeders extract nutrients directly from the plant's vascular system.
Where Is Shield Bug Found?
Shield Bug can be found in Europe, Asia, where it inhabits underground environments. Its distribution is influenced by climate, food availability, and habitat suitability.
Distribution Map
Where Shield Bug can be found
Is Shield Bug Dangerous?
Shield Bug is generally harmless to humans. It does not bite or sting and poses no significant health risk. Like most insects, it prefers to avoid human contact and will typically flee rather than confront a perceived threat.
Shield Bug Role in Nature
Shield Bug is part of the food web as a primary consumer, feeding on plant material. It serves as an important food source for birds, bats, amphibians, and other insectivores, connecting plant energy to higher trophic levels.
Seasonal Activity
Frequently Asked Questions About Shield Bug
What does Shield Bug look like?
The Shield Bug typically measures 12-14 mm.
Where is Shield Bug found?
The Shield Bug is found in Europe, Asia and typically inhabits underground environments.
What does Shield Bug eat?
The Shield Bug feeds on plant sap by piercing stems and leaves.
Is Shield Bug dangerous to humans?
The Shield Bug is generally harmless to humans. It does not bite or sting and poses no significant health risk.
What is an interesting fact about Shield Bug?
Shield bugs can change color with the seasons — they produce green pigment in summer for leaf camouflage and switch to brown in autumn as leaves change.
Cite This Page
APA:
InsectDiscover. (2026). Shield Bug (Palomena prasina). Retrieved from https://insectdiscover.com/insect/shield-bug
MLA:
"Shield Bug." InsectDiscover, https://insectdiscover.com/insect/shield-bug.