On a distant planet called Symbion, scientists working on some chemical formula that went wrong, causing all the inhabitants of the world to mutate. Much of the technological advancements of the planet were lost, but the resulting races of humans had gained the ability to telekinetically connect with insects, which have reached massive sizes and are called Insectoids. The world has been separated into two regions - the Shining Realm and the Dark Doman and the leaders of each side are racing to the Hyve, where they can find the Wisdom of the Ancients (sound familiar?). In an interesting twist, the "wisdom" are actually the technological advancements lost in the show's intro.
Sectaurs is genuinely one of the ugliest cartoons I've ever seen, whether it's intentional or not. The Sectaurs are so incredibly gross looking, I mean look at this guy:
Those ugly cat/bug looking eyes, the antenna, that massive unibrow. And this is one of the good guys! Even their names are ugly, like Pinsor and Mantor. Even worse though are their insect partners, each of them having weird, teeth-filled mouths and the same cat-like eyes. The Insectoids are weird amalgams of different bugs, like crosses of ants and crabs, with some looking more reptilian than anything. It's just gross looking. Even the settings are nasty, like the inside of this living ship.
The disgusting nature of this cartoon doesn't stop with it's visuals - it is one of the hardest cartoons to listen to, full of generic bug noises (Frank Welker must have been having an off day), and worse than that, each of the Sectaurs is constantly making this weird undulating war cry. I have never heard the word "maggot" used so much either, and by both sides no less. Even the sound effects are messy, with chomping sounds accompanying swipes with a bug's claw into the ground. It's like the sound director had something against this show. It is certainly strange hearing Dan Gilvesan (Bumblebee) leading a team that includes Peter Cullen (Optimus Prime).
This is General Spidrax, leader of the bad guys from the Dark Domain. He carries a whip make from the venomous antenna of some species of bug. He's telebonded with Spiderflyer, and yes, all the Insectoid names are this generic. Spiderflyer is a flying Tarantula, even though it only has six legs. It shoots a poisonous web that renders anyone it touches unconscious, though I've never seen it in the cartoon. I don't think Spiderflyer does much of anything besides help Spidrax retreat.