White eggs on potato plant leaves?

Hey everyone, I'm new to this forum (and to gardening really haha)... I've a potato patch in my back garden, I noticed quite a few leaves had holes in them. On further inspection I found little white round eggs, about 10-15 in total.

I've put the leaf in a sealed container to find out what would hatch, and from what I can make out at the minute as they are quite small is that they are little greenish caterpillars with brown heads.

Anybody an idea what they could be?

Thanks
Sabrina

 

Good evening Sabrina and welcome to the site. Any chance of a pic or two?

 

Thank you, I couldn't get amazing pictures, just on my phone. Keeping them in a container at the minute feeding them. Still kind of hoping they might be butterfly or moth caterpillars...:D

 

Hmm I've tried replying loads of times to this hopefully this one gets through!! I hope they aren't saw fly lol heres some pics:

About a week ago


Today