What are these things?

Don't know, but they have started the next generation. If you really want to know put some in a jar and send to your local Agricultural Dept.

Neil

Bit hard to tell exactly, but they look like the larval stage of a case moth. I've never seen them that tiny before though

If you are in the region of the Yorke peninsula they may be very small snails, common to SA, They are all through crop growing areas and totally coat fence wires and posts when bigger.
Just a thought, if they have a shell and sucker bottom.

Thanks for the replies.

I'm on the Gold Coast.

The thing they live in has a soft case, so maybe they are a moth, definitely some sort of little beetle in it from what I can see.

After a google maybe is a case moth, cheers.

It could also be a type of Caddis fly?

Caddis

They look like bag moths.
The larvae camouflage themselves by spinning a cocoon the attaching eg leaves to the outside.

Can I have the pink one

Thanks everyone.