Sidri

The Sidri, also known as Sidrian Hunters, are a fictional race of extraterrestrial beings in the Marvel Comics universe. They are adversaries of the X-Men. Created by writer Chris Claremont and artist Dave Cockrum, they first appeared in Uncanny X-Men #154 (February 1982).

Physical characteristics and abilities
The Sidri look roughly like giant beetles or crabs. The dorsal portion of their bodies resembles a shell and is dark purple. The underbelly is yellow. Sidri have six apparently digit-less limbs. Four limbs are large, purple, and located on the sides. Two are small, yellow and located near the front of the underbelly. Each Sidri has a single, large, red eye.

Sidri lives in colonies and are so closely linked that they can combine into a "ship matrix." The ship matrix is a giant collective Sidri being roughly resembling a manta ray. The ship matrix has a tail and two limbs with digits on the underbelly. This bioship form is capable of faster than light flight and survival in space.

Sidri can project an energy beam of unknown nature to stun their opponents. Sidri are particularly vulnerable to heat. They reproduce by laying eggs.

Encounters with the X-Men
The Sidri first encounter the X-Men when a group of Sidri bounty hunters followed Corsair to the X-Mansion. The Sidri attacked Corsair, Cyclops, and Storm and destroyed the mansion. The Sidri ship matrix then pursued the trio who had escaped in the Blackbird jet. Corsair killed the Sidri by igniting a petroleum storage facility.

Later, Kitty Pryde was attacked by a group of Sidri in maintenance tunnel of the reconstructed X-Mansion's sub-basement. The sub-basement had survived the attack, and several Sidri had hid there to lay eggs. Colossus and Lockheed came to Kitty's aid, and the three defeated the Sidri. Lockheed destroyed thousands of Sidri eggs by burning them with his fire-breath and eating them.