Where Do Dungeon Key Guardians Spawn?

Can someone give me a list where all the key guardians spawn? i am currently looking in the jungle right after nasak for undergrowth ruins key (near where the dungeon is) but can't seem to find any, may i have some help?

 

Decrepit Sewers: Ragni Plains
Infested Pit: Black Road area
Lost Sanctuary: Time Valley and occasionally near the Roots of Corruption
Underworld Crypt: Ancient Nemract and the surrounding area
Ice Barrows: Llevigar/Nesaak areas
Undergrowth Ruins: Jungle, Dernel Jungle (rarely), Swamp
Galleon's Graveyard: Ocean, Dernel Jungle, Dark Forest
Corrupted Decrepit Sewers: Kander Forest
Corrupted Infested Pit: Light Forest
Corrupted Lost Sanctuary: Lake Gylia and western Canyon of the Lost
Corrupted Underworld Crypt: Mid-Canyon of the Lost
Corrupted Sand-Swept Tomb: Eastern Canyon of the Lost, Corkus
Fallen Factory: Corkus, Molten Heights
Corrupted Ice Barrows: Corkus

This is probably not what you want but whatever, and also for some reason Undergrowth Ruins Key Guardians are a pain to hunt.

 

I always found a lot of Undergrowth Ruins Guardians in the jungle around troms, i wouldn't say they are hard to get

 

NEED UNDERWORLD CRYPT KEYS

 

Just go to Ancient Nemract

 

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