Well, you would never want to feed your Pacman Frog anything that is caught outside. Parasites and pesiticides can easily kill a Pyxie Frog.

As far as if they are dangerous for frog consumtion...I don't know. I did watch a video of someone feeding one of those hoppers to their Pacman Frog. The dude got fussed at alot, but the guys says his Pacman Frog is fine. That doesn't mean they aren't dangerous, it just means that it didn't directly kill his Pacman Frog.

That doesn't mean it is safe, though, so I don't even know if this post has helped at all.

[still, never feed any pet wild-caught insects! Too many sad stories! Parasites, from what I have heard, are no fun to deal with (deadly or not)]