Both (Lumina & Umbra) spawn on the following maps:

Scorched Earth, The Center, Ragnarok, Lost Colony, Valguero, Extinction, Astraeos

Lumina at day, Umbra at night.

This is literally a knockoff light fury

PastelGothPower

The idea incubation temperature for lumina is -85°.

Can confirm they do spawn on scorched near wyvern trench

I think that these are the female version to the umbra but idk

They also spawn on scorched earth

Is only on Ragnarok hard to find this one.

I never heard of this but i am the first tip