A saturated sponge provides high moisture levels for trapped amphibians. Leaf litter added to the trap from the site provides shelter and moisture which prolongs survival of trapped animals.
Pitfall traps may have "exclusion barriers" such as a selective grid or "roof" to exclude unwanted fauna (predators, non-target species) and rain. Not only that, but a large ground beetle having fallen into a dry trap will proceed to eat anything else that happens along. It is your responsibility to check these daily, especially if it's been raining and larger amphibians like toads are out. Alternatively, try an old sock suspended above the trap filled with dung - this seems to have achieved success in Africa on dung beetle expeditions. But WOW rotting fish really honks, so mine are set in a forest a few hundred yards up the road. Rotting fish seem to catch the most beetles for me, especially burying beetles. I have always found that pitfall traps seem to work better if you bait them with something to catch an insect's attention. Make some small holes in the bottom so that if it rains, the water doesn't drown your catches, dig a small hole, cover and you're set. Making a basic pitfall trap to catch beetles for your macro shots really is one of the easiest insect traps you'll ever make in your life.Īll you need is a plastic cup that's thin enough to use a needle to make holes in the bottom, a cover against rain and a few small stones. One of the easiest ways to catch beetles, but you must ensure that you check them daily. Making A Pitfall TrapĪ pitfall trap - insects fall in and they can't get back out. Apidae, Araneae, Carabidae, Diptera, Formicidae, Isopoda, Vespinae are all common catches in pitfall traps. You are likely to trap beetles and other insects, as well as spiders and slugs. Pitfall traps are extremely cheap to make and can be added to any garden.
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