Kriltic (Earth-5875)

The kriltic are a species of massive, scorpion-like arachnids found on many former forerunner-settled planets, such as Etran Harborage and LV-742. During the Battle of Etran Harborage, many of them were hostile to both UNSC, Covenant and xenomorph forces, and were used by the latter as hosts.

Anatomy and physiology
Kriltic are a massive species, reaching an average 8' 5" (256.54 cms) from the top of their craniums to their tails; they have an exoskeleton with a hard carapace, four legs, two pincers, a bladed tail and seven eyes, resembling to Earth's scorpions. They have thick white blood.