Welcome!
I can't help you, other than to say, try the normal ways with searches on the web. Can you get the fabric name details from the person who has the precuts? that would help!
There are some posters here, that might be able to help you as they are "buggy about bugs"! You might want to try a thread in the Main section ... and title it "Searching for This Bug Fabric", or something similar, to get their attention!
I will admit ... you do have me curious as to what you will be making. care to share?