Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Discussion, insects and people from the 2018 BugGuide Gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

TaxonomyBrowse
Info
ImagesLinksBooksData

Genus Ptyoiulus

What bug? - Ptyoiulus impressus Millipede - Ptyoiulus impressus Millipede - Ptyoiulus impressus Millipede - Ptyoiulus impressus Ptyoiulus impressus Ptyoiulus impressus Millipedes - Ptyoiulus impressus Millipede - Ptyoiulus impressus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Myriapoda (Myriapods)
Class Diplopoda (Millipedes)
Order Julida
Family Parajulidae
Genus Ptyoiulus
Numbers
Two species:
Ptyoiulus impressus (Say, 1821)
Ptyoiulus montanus (Cope, 1869)
Identification
Typically larger Parajulidae, color dark purple. Can be separated from other Parajulids by its hairy caudal rings and moderately long, pointed epiproct
Range
Eastern North America
Season
Mature individuals most often found during the fall