Milkweed Assassin Bug Nymph

Scientific Name: Zelus longipes

Order & Family: Order Hemiptera; Family Reduviidae

Size: Nymphs start around 2-5mm; adults reach 15-20mm in length.

Milkweed Assassin Bug Nymph

Natural Habitat

Found in gardens, fields, and open woodlands, particularly on plants like milkweed that attract varied insect prey.

Diet & Feeding

Carnivorous predator; they consume a wide variety of soft-bodied insects including caterpillars, aphids, and flies using an ambush or stalking strategy.

Behavior Patterns

They use 'sticky trap' strategy by secreting a glue-like substance onto their legs to help catch prey. They undergo incomplete metamorphosis (egg, nymph, adult).

Risks & Benefits

Benefits: Highly beneficial for gardens as they act as natural pest control. Risks: Can deliver a painful, though medically non-threatening, defensive bite to humans if handled.

Identified on: 4/21/2026