Abstract
Paropiona Shear & Marek, gen. nov. is described from northwestern and central Washington State, USA. It includes two new species, Paropiona gardneri Shear & Marek, sp. nov. from Pacific and Cowlitz Counties, and Paropiona aenigma Shear & Marek, sp. nov. from Clallam, Grays Harbor, Jefferson, Lewis, Mason, Pacific, Thurston and Wahakiakum Counties. Opionoides Shear & Marek, gen. nov. is monotypic with only Opionoides cataracta Shear & Marek, sp. nov. from Coos Co. Oregon. The new genera are related to, but distinct from the genus Opiona Chamberlin, 1951.
References
- Causey, N.B. (1952) Four new chordeumoid millipeds from the United States. Proceedings of the Biological Society of Washington, 65, 111–118.
- Causey, N.B. (1954) The millipeds collected in the Pacific Northwest by Dr. M.H. Hatch. Annals of the Entomological Society of Washington, 47, 81–86. https://doi.org/10.1093/aesa/47.1.81
- Causey, N.B. (1955) New records and descriptions of Californian diplopods. Proceedings of the Biological Society of Washington, 68, 87–94.
- Causey, N.B. (1963) Two new caseyid millipeds from California caves. Wassman Journal of Biology, 221, 193–198.
- Chamberlin, R.V. (1941a) New American millipeds. Bulletin of the University of Utah, Biological Series 6 [4], 3, 1–39.
- Chamberlin, R.V. (1941b) New western millipeds. Bulletin of the University of Utah, Biological Series 6 [5], 31, 1–23.
- Chamberlin, R.V. (1947) Seven new American millipeds. Proceedings of the Biological Society of Washington, 60, 9–16.
- Chamberlin, R.V. (1951) Eleven new western millipeds. Chicago Academy of Science Natural History Miscellania, 87, 1–12.
- Chamberlin, R.V. (1952) Two Oregon millipeds of the Order Chordeumida. Chicago Academy of Science Natural History Miscellania, 113, 1–3.
- Cook, O.F. (1896) Notes on the classification of Diplopoda. American Naturalist, 30, 681–684. https://doi.org/10.1086/276460
- Cook, O.F. & Collins, G.C. (1895) The Craspedosomatidae of North America. Annals of the NewYork Academy of Sciences, 9, 1–100.
- Gardner, M.R. & Shelley, R.M. (1989) New records, species, and genera of caseyid millipeds from the Pacific Coast of North American (Diplopoda: Chordeumatida: Caseyidae). Pan-Pacific Entomologist, 65, 177–268.
- Loomis, H.F. (1966) Two new families and other North American Diplopoda of the suborder Chordeumidea. Proceedings of the Biological Society of Washington, 79, 221–230.
- Shear, W.A. (1972) Studies in the milliped order Chordeumida (Diplopoda): a revision of the family Cleidogonidae and a reclassification of the order Chordeumida in the New World. Bulletin of the Museum of Comparative Zoology, 144, 151–352.
- Shear, W.A. (2011) Cave millipeds of the United States. XI. Opiona graeningi, n. sp., a troglomorphic caseyid milliped from Siskyou County, California, with comments on the genus Opiona Chamberlin 1951 (Diplopoda, Chordeumatida, Caseyidae). Zootaxa, 3114 (1), 50–56. https://doi.org/10.11646/zootaxa.3114.1.5
- Shear, W.A. (2021) Additions to the milliped family Caseyidae. II. Martenseya, a new genus of miniature, blind millipedes from California (Diplopoda, Chordeumatida, Caseyidae). Zootaxa, 4984 (1), 108–113. https://doi.org/10.11646/zootaxa.4984.1.10
- Shear, W.A. & Crawford, R.L. (2019) Cave millipedes of the United States. XVI. Two new species from Oregon Caves National Monument, Oregon (Diplopoda, Chordeumatida, Caseyidae). Zootaxa, 4674 (5), 572–580. https://doi.org/10.11646/zootaxa.4674.5.6
- Shear, W.A. & Leonard, W.P. (2007) Additions to the milliped family Caseyidae. I. Caseya richarti n. sp., and new records of previously described species in the genus Caseya Cood & Collins 1895 (Diplopoda, Chordeumatida, Caseyidae). Zootaxa, 1524 (1), 23–34. https://doi.org/10.11646/zootaxa.1524.1.2
- Shear, W.A. & Marek, P.E. (2024) Additions to the millipede family Caseyidae Verhoeff, 1909. III. Proposal of the new subfamily Ochrogrammatinae, new records of Vasingtona irritans (Chamberlin, 1910), established species of Ochrogramma Gardener and Shelley, 1989, a new species of Ochrogramma from Washington state, USA (Diplopoda, Chordeumatida, Striariidea), and observations on spermatozoa and spermatophores. Insecta Mundi, 1090, 1–21.
- Shelley, R.M. (1993) The milliped genus Underwoodia (Chordeumatida: Caseyidae). Canadian Journal of Zoology, 71, 168–176. https://doi.org/10.1139/z93-023
- Shelley, R.M., Shear, W.A., Leonard, W.P. & Ovaska, K. (2007) Diplopoda, Chordeumatida, Caseyidae, Opiona Columbiana Chamberlin, 1951: Distribution extensions into the Alexander Archipelago, Alaska, USA, Queen Charlotte Islands, Pritish Columbia, Canada and eastern & southern Washington State, USA; additional new records from British Columbia and Washington. Check List, 3 (1), 14–17. https://doi.org/10.15560/3.1.14
- Verhoeff, K.W. (1909) Neues System der Diplopoda-Ascospermophora. Zoologische Anzeiger, 34, 566–572.