Large green and yellow spider-like aberrations, covered in chitinous armor. Seven legs, with two pincers in front, bodies covered in pulsing organic sacs. Disturbingly human heads, bald, dead-eyed, jaundiced. If they bite you, they can steal up to six hours of your memory and pass those memories on to their young.
First Reference: Chapter 180
Other Notable References: Chapter 181, Chapter 183