Pristhesancus plagipennis is an Australian insect in the assassin bug genus Pristhesancus.

Amongst its prey is the bronze orange bug (Musgraveia sulciventris), a common garden pest.

[1][2][3][4] It is sometimes called the bee-killer assassin bug, as it is also known to prey on honey bees.

The juveniles (nymphs / instars) have a distinctive bright orange abdomen.

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