Hive Cluster

Spawns

 * Evolved Lemurian
 * Spitter
 * Gup
 * Parent

Bosses

 * Toxic Beast
 * Imp Overlord
 * Scavenger

Bloated Survivor
The bloated survivor can be found in the bottom-right corner of the map; you will fight a giant bug when you confront them, so be ready!

Artifact
The artifact gate can be found in the upper-rightmost corner of the map. Hanging from the ceiling is a series of invisible, climbable vines that periodically glow a bright pink. Jumping across is sufficient to unlock the Command artifact.