Which family includes predatory ambush bugs with dilated raptorial forelegs and clubbed antennae, typically waiting for prey on vegetation?

• A. Phymatidae
• B. Reduviidae
• C. Tingidae
• D. Lygaeidae

Answer: (A)

Ambush bugs are predatory true bugs that wait on vegetation to grab prey, using their enlarged, grasping forelegs to seize instantly. This ambush feeding style, combined with specific hunting adaptations, places them in the assassin bug family. The group described—the predatory ambush bugs with dilated raptorial forelegs and clubbed antennae—fits Reduviidae, specifically the ambush bugs in the subfamily Phymatinae. So the family is Reduviidae.

The other families don’t match this predatory ambush lifestyle: Tingidae are lace bugs that feed on plant sap and have lace-like wings; Lygaeidae are seed bugs that typically feed on seeds; Phymatidae is not the family that these ambush predators belong to.