It appears that Polyxenus is the only western North American genus in the order Polyxenida, and it is beyond my…
I was lucky on my first two millipedes. Tylobolus uncigerus is the only species in its order (Spirobolida) in our…
This very common millipede is in the order Polydesmida (flat-backed millipedes) and the family Xystodesmidae. It is sometimes called by…