possible emergency, what is this?

[tmoney]

so, just looked in on the terrarium and noticed this on my den wassellii. i don’t think the species is really important tho.

i look in on it everyday, and didn’t see this till just now. admittedly, i have a mutant fungus gnat problem on my hands in there. but, ok, ive had gnats for 20 years and never seen this. could it be an outbreak or egg? that’s the only thing i could think. this doesn’t look like a normal plant growth to me.

it was immediately taken out and moved outside

thanks for any insight....