The Pinned Scorpion can be looted in some mechanical chests. This guy, technically, isn't even an insect at all, but an arachnid! (Think Spider) You won't have to worry about that dangerous stinger, it is safely pinned to whatever wall you choose. Now you don't have to worry about this critter stinging you (or scaring you) in your sleep!!!
How to Obtain
The Pinned Scorpion can be obtained via looting, semi-rarely, from mechanical chests and by trading.
At some point, it became possible to obtain a pinned scorpion by going to a desert biome and catching a small scorpion with a net. Even so, as of December 2018, the pinned scorpion still drops as "rare" loot from large mechanical chests. Bummer!