Cocoon of either Sloe Bugs or Forest Bugs. I find it difficult to tell these two creatures apart. The lighter brown one looks more like a Sloe Bug but the others look like Forest bugs. Could they be sharing a cocoon?

Cocoon of either Sloe Bugs or Forest Bugs. I find it difficult to tell these two creatures apart. The lighter brown one looks more like a Sloe Bug but the others look like Forest bugs. Could they be sharing a cocoon?