Catching Insects with Pitfall Traps

Set a pitfall trap for some of the wild animals in your garden, using just an old plastic cup, and investigate the fascinating world of bugs.

What you need

A plastic cup

A small trowel (something to make a small hole)

Somewhere to put the hole - eg a garden.

Half a bucket / Ice cream container (optional)

What to Do

What may Happen

Sam found a springtail - They've got six legs but they're not actually insects. They're called non-insect hexapods. They look as though they're about 3 or 4 millimetres long. They crawling around like ants but with longer antennae. They have a spring at the end of their tails, which is a little structure that looks a bit like an arm. They can straighten it very fast and will propel them into the air, so it's an escape response. The reason is that these things are eaten by nearly everything, so that's why they're a bit nervous and twitchy animals. Everything's trying to munch them.

Luke Caught a pill woodlouse. Its response is to curl up a little bit like an armadillo and protect itself from predators.

What is going on?

You may find that traps in dark shady places work a lot better than in the sun, as insects feel a lot safer from big predators like birds.

If you want to identify the bugs you find you could try:

Exeter Universities Bug Club

Kendall Bioresearch's Insect Key