Bumblebee millipedes ?

[Jerry]

I have a large bumblebee millipedes colony not sure if that's what you would call it but I've noticed there not getting the bright yellow at one time I had some smokey oak millipede in with them so I'm curious are they not getting something they need from the sub and food I provide or is it more likely that there is something else going on I'll post some pics as soon as I can

 

[pannaking22]

Pics would definitely help. Are they adults?

 

[Jerry]

 

[mickiem]

How old are they? Sometimes they don't get their color for close to a year. They look like bbb's to me!

 

[Jerry]

To be honest I know some of them are young but it's becoming almost impossible to tell there's so many of them in this pic the much larger one is strange I don't see the adults a hole lot

 

[SFA]

With the exception of the bigger one in the middle, they look exactly like my baby bumblebees!