you will need are:
or 70% alcohol
Dig a hole in the ground roughly the diameter and depth of the
PVC pipe, an auger is better to use than a shovel for this as
it will dig a neat hole and require less back fill. Once dug,
place the pipe into the hole making sure the top is level with
the ground and fill in any gaps around to create a tight fit.
Place the plastic cup into the pipe and stand the metal fence
lengthways across the top . The fence will help direct crawling
and walking invertebrates along the fence and into the cup.
Erect the roof over the top to keep out the rain and smooth
the dirt down and away from the cup. Put some collecting fluid
into the bottom of the cup to help preserve the trapped invertebrates,
then sit back and wait to see what you collect.
to make a Flight intercept/Malaise trap
you will need:
netting or fly wire
large cone or funnel
wooden posts or star pickets
or 70% alcohol
Start by digging a trench in the ground to fit the metal trough.
When the trench is just wide and deep enough to sink the trough
to ground level put it in and back fill any gaps so that there
are no other holes to trap invertebrates. Hammer in 2 of the
posts at either end of the trough and stretch some netting or
fly wire between the two making sure it is pulled tight. Insects
that hit the netting while flying along will drop into the trough
and this is where the name "flight intercept' comes from.
hammer in the remaining posts on the opposite sides of the trough
to form the corners of a square with the other 2 posts. This
forms a sturdy frame to support the top part of the trap known
as the "malaise trap". A large netting cone is supported
by the posts and a collecting bottle is placed at the top of
the cone. Those insects that are intercepted by the flight intercept
netting and don't fall into the trough below will usually climb
upwards towards the light and become trapped in the bottle.
Don't forget to put some collecting fluid in the bottle as well
as the trough to preserve the invertebrates you collect.