Procedures

Choose Sampling Locations

Mark Sampling Area

• Define a fixed area to sample (e.g., 10m × 10m plot or a straight 20-meter transect).

• Use flags, cones, or visual markers if needed.

Sweep the Vegetation

• Hold the net with two hands, with the opening facing forward.

• Walk slowly through the plot, sweeping the net from side to side in a wide “figure-eight” or “U” motion.

• Sweep at a medium level through grasses, shrubs, or low plants.

• Perform a consistent number of sweeps (e.g., 20 or 50 sweeps per plot) to keep data comparable.

Check the Contents

• After the set number of sweeps, stop and carefully inspect inside the net.

• Gently transfer insects into a plastic bag for identification.

• Document each species with name and amount, using identification tools such as iNaturalist

Record Field Data

• Write down observations such as habitat type, weather, plant types present, any notable insect behavior

Clean Up

• Empty the sweep net and plastic bag before moving to the next site or storing it, as well as the plastic bag

Choose Sampling Sites

• Select areas with different levels of plant density (e.g., open grassland, mixed vegetation, wooded areas).

• Record the site location, plant types, habitat characteristics, and environmental conditions

Prepare the Trap Holes

• Use a trowel to dig a hole big enough to bury the cups

• Pack soil around 2 stacked cups to bury them with the rim level to the soil surface

• Make sure the cups are snug in the hole so insects don’t get stuck on the edges.

Set the Trap

• Remove the upper cup to ensure that soil doesn't get into the trap

• Pour 1–2 inches of isopropyl alcohol into the cup to capture and preserve the insects.

• Place a cover slightly above the cup balanced on metal brackets to keep out debris while allowing insects to crawl in

Leave Traps in Place

• Leave traps for 24–72 hours

• Avoid disturbing them while they’re active.

Collect the Samples

• After the trapping period, carefully remove the cup.

• Pour contents into labeled collection containers or bags for later sorting.

• Record any field notes: weather conditions, disturbances, or anything unusual.

Clean Up the Site

• Fill in the holes and remove all materials.

• Leave the area as undisturbed as possible.