To reach that number in Colombia I’m guessing you’ve found a lot of birds, plants, insects, etc. Impressive!
I imagine in such a biodiverse country there are probably still hundreds of species to be found, but many may not be well studied enough for identification… have identifiers told you of any undescribed species that you’ve found?
In addition to moth lights, another avenue for more obscure species would be micro-organisms. If you have a microscope, there’s a whole other world of organisms to explore out there.