ΔE 29.2, loose: different enough that you should pick on purpose. Beetle Green is noticeably darker, much more saturated, warmer than Boreal Beetle.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 29). Beetle Green is noticeably darker, much more saturated, warmer than Boreal Beetle.
The same difference applies the other way round: Boreal Beetle is noticeably lighter, much more muted, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Boreal Beetle on the colour wheel See Beetle Green on the colour wheel
All matches: Boreal Beetle equivalents · Beetle Green equivalents