? about iCloud contact groups

Thinking I finally have all my devices set up properly in iCloud, I checked the address book on my iPhone and I see 2 groups listed: All Contacts and djmiCloud (the dim is the name given to iPhone account). All Contacts show all of my contacts, naturally, but the djmicloud is empty. I went to iCloud.com and see that indeed, all my contacts are there, and as a test, I added a new contact and found that it was added to all my devices--suggesting all is working well. So what is the deal with the djmicloud contact group? I don't see any way to delete or remove it from iPhone. I read a post by someone who mentioned apart groups. confused by this as well.