The endermites are on the move thanks to Minecraft snapshot 14w11a

About the size of a pickaxe, the endermite shuffles its segmented, purple frame across the sands. The pretty, lavender snowflake particle effect that attends the enderman clings to this insect too - but admiring players would be wise not to get too close, for fear of immediate and persistent attack.

Why are the endermen just standing there : r/Minecraft

Spectator – Minecraft Wiki

TIL Endermites die (of suffocation?) on SoulSand (bug?) : r/Minecraft

Minecraft 1.8 Snapshot: Creepers Scare Monsters, Pet Death Messages, New 3D Model Pack

Forest – Minecraft Wiki

Minecraft snapshot 14w11a : r/Minecraft

I used over 168 ender pearls getting a endermite so I named it Alberts pain and suffering Once I got it. It then knocked me into the void. : r/ Minecraft

Minecraft snapshot 14w11a : r/Minecraft

How to spawn endermites in Minecraft

Endermite – Minecraft Wiki

Java Edition 15w49a – Minecraft Wiki

Endermite in Minecraft

Plains – Minecraft Wiki