The Martian host for the Green Beetle Scarab, B'arzz O'oomm, is named after the Barsoom sci-fi novels by Edgar Rice Burroughs. According to those novels "Barsoom" is the name the natives of Mars use for their home planet.
B'arzz O'oomm the Green Beetle of Mars is an original character created for the show, and does not appear in the comics.
In an odd bit of casting, Mark Rolston is playing Superman's arch nemesis AND his adoptive father!
The events depicted occur on April 7th, 8th, and 9th.
Appearance of the Arc# 16: time stamp 16:38.