Not sure if this has been pointed out before. I was just re-watching The Animated Series episode "The Time Trap" for fun since it's the 40th anniversary of TAS this week, and noticed among the council of aliens stuck in the space version of the Bermuda triangle something that liked a lot like a Xindi insectoid.
Now of course TAS predates ENT by decades, so I wonder if the ENT people decided to use this TAS insectoid for inspiration or if it's entirely serendipitous. Since it's kind of a standard design for something that's an upright humanoidish insect alien species. The TAS version has two sets of arms, while the ENT Xindi does not.