Ptyoiulus

Cook, 1895

Species Guides

Ptyoiulus impressus(Flocculent Tailed Millipede)

Ptyoiulus is a of millipedes in the Parajulidae, established by Cook in 1895. The genus contains approximately seven described distributed in eastern North America. Species within this genus are cylindrical millipedes characterized by features typical of the Julida order. The genus is taxonomically placed in the Ptyoiulinae.

Ptyoiulus impressus by (c) Derek Hennen, some rights reserved (CC BY), uploaded by Derek Hennen. Used under a CC-BY license.

Ptyoiulus impressus 178878184 by Lance Andrew. Used under a CC BY 4.0 license.

Millipede - Ptyoiulus impressus, Leesylvania State Park, Woodbridge, Virginia, March 14, 2022 (52454443788) by Judy Gallagher. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Ptyoiulus: //ˈtaɪ.oʊ.aɪˌjuː.ləs//

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Distribution

Eastern United States. Specific locality records include Vermont. epithets suggest additional range components: georgiensis (Georgia), montanus (mountainous regions), and pennsylvanicus (Pennsylvania).

More Details

Species Composition

Seven have been described: Ptyoiulus conveanus, P. coveanus, P. ectenes, P. georgiensis, P. impressus, P. montanus, and P. pennsylvanicus. Ptyoiulus impressus was originally described by Say in 1821, indicating long recognition of this . Ptyoiulus pennsylvanicus was described by Brandt in 1840. Ptyoiulus ectenes was transferred from the Iulus by Bollman in 1887.

Taxonomic History

The was established by Orator F. Cook in 1895. The Ptyoiulinae was erected to accommodate this genus within Parajulidae. The genus has remained stable in its placement, though -level has been revised by Chamberlin in 1943.