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

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 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


TaxonomyBrowse
Info
ImagesLinksBooksData

Species Pachydesmus crassicutis

Unknown Polydesmida - Pachydesmus crassicutis - female Millipede - Pachydesmus crassicutis Millipede - Pachydesmus crassicutis Xystodesmidae? - Pachydesmus crassicutis Centipede species? - Pachydesmus crassicutis Pachydesmus crassicutis Pachydesmus crassicutis Pachydesmus crassicutis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Myriapoda (Myriapods)
Class Diplopoda (Millipedes)
Order Polydesmida (Flat-backed Millipedes)
Family Xystodesmidae
Tribe Pachydesmini
Genus Pachydesmus
Species crassicutis (Pachydesmus crassicutis)
Identification
It is the largest bodied xystodesmid in the United States, and this is its typical color pattern.
Remarks
Pachydesmus is in the tribe Pachydesmini.

Caution: Many millipedes with bright color patterns secrete a compound containing cyanide. Wash your hands after handling them and do not allow children to pick them up.

"Millipedes are entirely non-toxic to humans and can be picked up by hand. Some secretions discolor the skin, but this wears away in a few days without lasting effect. Some large, cylindrical, tropical species squirt their defensive secretions up to a half meter (2-3 feet) and can blind chickens and dogs. Their fluids are painful if they get into the eyes, and persons working with tropical millipedes should be suitably cautious." ~Rowland Shelley
Internet References
Sciencemag.org - info regarding chemical spray