Millipedes

The following is a guest post from millipede expert Paul Marek. The eerie glow of a Motyxia millipede (photo by P. Marek) I study millipedes in the family Xystodesmidae (order Polydesmida).  These millipedes contain hydrogen cyanide as a defensive chemical and use aposematic coloration to warn predators of their toxicity.  Coloration patterns in these species include bright yellows, oranges, reds, and violet. One nocturnal genus in this family, Motyxia, known only from California, does not display conspicuous coloration.  These millipedes do something even more remarkableâthey produce a…