Tropical pitcher plants catch prey and eat them. It does this by attracting them with sweet smelling nectar on the rim and hood of its pitcher. The pitcher acts as a pit fall trap and is filled with digestive juices. The rim is also slippery so when the bug goes to investigate the sweet-smelling nectar, it slips and falls. The trap is also lined on the inside with hairs that point downward so its victim can't escape. 

Tropical Pitcher Plants at the Akron Zoo

You can find our Tropical Pitcher Plants in Curious Creatures.