Alien (Dinosaurs vs. Aliens)

This Aliens are extraterrestrial beings who invaded Earth, in the Mesozoic Era of Dinosaurs.

Biology
They are octopedal robotic-looking creatures with insectoid heads, mechanical tentacles that they use as arms and spider-like legs.

Technology
They pilot saucer-shaped motherships and they control octopus-like drones.

They also wear laser guns in their tentacles.