Budget constraints kept the Borg from being depicted as insectoids as Maurice Hurley had originally intended, though the hive concept survived to become the overwhelming group mind known as the Collective.
http://memory-alpha.org/wiki/BorgThe Borg were initially conceived by Maurice Hurley as a race of insects (which were shown in the TNG Season 1 episode "Conspiracy"), but were changed to the more budget-friendly cyborgs that went on to become so famous.
TNG, Episode 2x16Writer Maurice Hurley had originally planned the season one episode "The Neutral Zone" to be the first part in a trilogy that would introduce an entirely new threat to the Federation. He finally got to proceed with his planned sequel with "Q Who",
First aired: 8 May 1989
Sure the Xindi-Insectoids were among the first sentient insectoid species encountered, were 'Insectoids' in ENT ep.#301 The Xindi and with CGI they were able to be created (at great cost).
able to be created as they were drawn only.By 2269, at least two species of insectoids had been encountered. (TAS: "The Time Trap", "The Jihad")
What if the Borg were originally premiered in Q Who as insectoid?