Giant Shield Bug

Pycanum rubens · Order: Hemiptera · Family: Tessaratomidae

No source yet on danger. We have no source yet on whether it bites, stings or damages anything.
Giant Shield Bug
Photo: Alan Cressler from Decatur, Georgia, USA, CC BY-SA 2.0

The giant shield bug, Pycanum rubens, belongs to the family Tessaratomidae. It is found across many parts of Southeast Asia, including Borneo, Burma, Yunnan in China, India, Indonesia, Java, the Malay Peninsula, the Moluccas, the Philippines, Sumatra, and Vietnam. Its original scientific name, Cimex rubens, was already used for another species, making the name a junior homonym.

Source: Wikipedia

How to recognize it

Pycanum rubens is a giant stink bug in the family Tessaratomidae.

Source: Wikipedia

Where it lives

The species lives in a wide range of Southeast Asian locations such as Borneo, Burma, Yunnan (China), India, Indonesia, Java, the Malay Peninsula, the Moluccas, the Philippines, Sumatra, and Vietnam.

Source: Wikipedia

Where it comes from

Its distribution includes the same Southeast Asian countries listed for its habitat.

Source: Wikipedia

Lookalikes

The name originally given by Fabricius, Cimex rubens, was already used for a different species, so it is a junior homonym.

Source: Wikipedia

More photos

Giant Shield Bug photo 3
Photo: S.E. Thorpe, Public domain
Giant Shield Bug photo 4
Photo: Bernard DUPONT from FRANCE, CC BY-SA 2.0
Giant Shield Bug photo 5
Photo: Bernard DUPONT from FRANCE, CC BY-SA 2.0
Giant Shield Bug photo 6
Photo: Bernard DUPONT from FRANCE, CC BY-SA 2.0

Same family (Tessaratomidae)

Lychee Stink BugLychee Stink BugTessaratoma papillosaDamages trees, gardens or cropsLychee Stink BugLychee Stink BugLyramorpha roseaDamages trees, gardens or cropsBronze Orange BugBronze Orange BugMusgraveia sulciventrisDamages trees, gardens or crops

Sources

  • Wikipedia: https://en.wikipedia.org/wiki/Pycanum_rubens

Look it up elsewhere: GBIF · iNaturalist · BugGuide · ITIS · Wikipedia

Text written 2026-10-23 from the sources above and checked sentence by sentence against them. Data fetched 2026-10-22.

How this page works

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