Who's the cutest widdle invasive species?

The tiny alien creatures known as skitters are silicophagous detritivores from the A'ovan homeworld, able to survive and thrive on metallic worlds such as Cybertron by dint of their unique diet.

Fiction

IDW 2019 continuity

The skitters first arrived on Cybertron along with the A'ovan, stowing away aboard their refugee ships; the skitters soon took to life on the metallic planet and turned invasive, but the Cybertronians allowed them to stay on account of their harmless natures. When Rubble first met Wheeljack, the newborn pointed out one such creature on the engineer's foot who cheerily explained what it was and sent it on its way before returning Rubble's attention to the glory of engineering. The World In Your Eyes Part Two

Prowl fed dead skitters to an organic avian pet of his. The World In Your Eyes Part Five

A skitter was roaming the badlands of Cybertron when Megatron accidentally ran it over. The Cracks Beneath Your Feet Part Four

Swindle's hosted a racetrack where patrons could illegally bet on skitter races. Swindle's

After the A'ovan habitat had been damaged and the Insecticons chased from it, Skrapnel and Kickback tried to feast on a skitter but it managed to scurry away to safety. Escape Part One

A skitter was scavenging a dead Insecticlone when Megatron nearly crushed it. Fate of Cybertron

Games

Transformers Roleplaying Game

Scatterspike enjoyed betting on skitter races. Catch a Falling Starscream

Notes

• Skitters come in a variety of colors: Transformers issue #2 shows a yellow specimen with a red shell, the skitters at Swindle's in #20 are a uniform grey, and green skitters with red shells feature in both #10 and #26. Escape #1 shows a purple skitter with a green shell and a red head, and a flashback to the A'ovan homeworld in the same issue shows another one in all-yellow.