DIY entomology II - build your own moth trap
@mikeburrell recently posted a how-to on building your own moth trap, including tips on where to source materials. These traps are fantastic and using them allows you to collect insects throughout the night, which is helpful as different species fly at different times. So if you are relying on a sheet and staying up until 1:00 am, you still may be missing some species. You also may get more sleep by using a trap....
One option to consider for the trap is a garbage can with a tight-fitting lid, rather than a muck bucket. The advantage of the garbage can is that you can store most of the material in the can, and leave it outside.
Also, as Mike notes in his post, mercury vapour lights are becoming hard to find. High quality UV bulbs are also good for traps. Bioquip, based in Los Angeles, will ship to Canada. I haven't found a Canadian vendor for this product. If anyone has any other suggestions, please add a comment below.