Merged in an Unknown Issidae HE from a wastebasket "Unidentified/Unknown" concept. Several months later: Planthoppers in the millipedes! Looks like the culprit is some (not all) of the NMNH Entomology classifications. -Jen -- Must have snuck in because of the Unidentified/Unknown HEs. Moved the Unknown diplopoda HEs to a separate concept.