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"I brutaly collected this redlisted fly"
" you don't need to worry about overcollecting flies yet"

If to tell without joke, I don't think there is reason to redlisted insectas at all. No reason in situation that 1000 person can distinguish it from wasp, and 10 person can ID species.
If they want to help fly, they should help park or other lanscape, it is the only sensible way, I think.
Nikita