Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

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

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

Photos of 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

Previous events


Order Spirostreptida

long dark bug - Orthoporus Millipede? - Orthoporus ornatus Coiled millipede - Choctella cumminsi Orthoporus sp. - O. ornatus or O. texicolens? - Orthoporus Help myripoda id please Choctella cumminsi - male Choctella cumminsi - male Orthoporus flavior
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Myriapoda (Myriapods)
Class Diplopoda (Millipedes)
Order Spirostreptida
12 families worldwide
3 families in North America
Up to 28 cm
Large cylindrical millipedes found mainly in the tropics. There is only one pair of gonopods (sex organs). (1)
Snake-like body. Eyes usually present. Dorsal groove mainly absent except in some Cambalidae. Paranota absent. 30-90 segments.
This order includes the world's largest millipedes, approaching 28cm (2)
In the southwestern US millipedes of the genus Orthoporus often congregate in large numbers. Three species occur in states adjacent to Mexico. (1)
Internet References
Works Cited
1.Spiders and Their Kin: A Golden Guide from St. Martin's Press
Herbert W. Levi, Lorna R. Levi, Nicholas Strekalovsky. 2001. St. Martin's Press.
2.Centipedes and Millipedes, with an Emphasis on North American Fauna
Rowland M. Shelley. 1999. Emporia State University.