ΔE 26.8, loose: different enough that you should pick on purpose. Beetle Green is noticeably darker, warmer than Psychotic Illusions.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 27). Beetle Green is noticeably darker, warmer than Psychotic Illusions.
The same difference applies the other way round: Psychotic Illusions is noticeably lighter, 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 Psychotic Illusions on the colour wheel See Beetle Green on the colour wheel
All matches: Psychotic Illusions equivalents · Beetle Green equivalents