I see, this is a shuchuu. Shuchuu is sake bug. The one that Suika used as an extract in her gourd.

Your map led you straight to the shuchuu's habitat.

So it wasn't a treasure map...

Though as far as I can tell, it's still a baby...

I came here to catch it...

But it's odd...

It seems like that is the only one left here.

There were lots of them in this underground lake a long time ago...