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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


Family Caseyidae

Millipede - Underwoodia iuloides millipede - Opiona columbiana Caseyidae? - Caseya Chordeumatida? Underwoodia? - Underwoodia iuloides Dark milliped with metallic rings Caseyidae? striped and dotted millipede striped and dotted millipede
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Myriapoda (Myriapods)
Class Diplopoda (Millipedes)
Order Chordeumatida
Family Caseyidae
6 genera in northeastern and western North America:
Caseya Cook & Collins, 1895 - 25 species and subspecies in California and Oregon
Metopiona Gardner & Shelley, 1989 - 1 species, Washington County, Oregon
Ochrogramma Gardner & Shelley, 1989 - 4 species, northern California and southwestern Oregon
Opiona Chamberlin, 1951 - 15 species and subspecies, coastal central California, western Oregon, Puget Sound region
Speoseya Causey, 1954 - 1 species, Calaveras County, California
Underwoodia Cook & Collins, 1895 - 2 species, northern North America
Vasingtona Chamberlin, 1941 - 1 species, British Columbia to Oregon