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Brachoria hansonia Causey 1950

The Pineville Mimic Millipede

Paul Marek
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Containing group: Brachoria

Characteristics

Brachoria hansonia individuals are about 44.0 mm long and 10.7 mm wide (females 47.2 X 11.2 mm).  Color: 3-spotted light orange (7.5YR 7/12, shown above), pink (1.25YR 6/12), or yellow (3.75Y 8/12).

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Brachoria hansonia genitalia - left male gonopodal acropodite (with setae removed): (Left) medial view and (Right) magnified apical view. © Paul Marek

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Brachoria hansonia, 3-spotted yellow (3.75Y 8/12) color morph. © Paul Marek

Habitat

Brachoria hansonia specimens were collected during the day (11:30) about five meters north of Little Clear Creek (Bell Co., Kentucky) in a hemlock, oak and birch forest.  Millipedes were found beneath a thin layer of decaying leaves in a very flat section of the forest near the stream.  No other xystodesmids were encountered with B. hansonia at this locality.  However, B. hansonia and B. splendida co-occur at Pine Mountain State Park and appear similar in coloration.

Distribution

Known only from six localities in eastern Whitley and western Bell counties, Kentucky.  Brachoria hansonia occurs on Pine Mountain from Pine Mountain State Resort Park to Chenoa Lake.  There is one, apparently disjunct population 23 air km west in Whitley County.  The closest known Brachoria species (aside from B. splendida that co-occurs at Pine Mountain State Park and Kentucky Ridge State Forest) is B. sheari, which occurs about 14 air km southeast of B. hansonia at the base of Cumberland Mountain near Shillalah Creek.

Conservation status

Brachoria hansonia is threatened by habitat loss due to agriculture (especially growing demand for paper products), coal mining, development, and the invasion of exotic species.

References

Marek P.E. 2010. A revision of the Appalachian millipede genus Brachoria Chamberlin, 1939 (Polydesmida: Xystodesmidae: Apheloriini). Zool. J. Linn. Soc. 159: 817-889.

Causey N.B. 1950. A collection of xystodesmid millipeds from Kentucky and Tennessee. Ent. News 61: 5-8.

Keeton W.T. 1959. A revision of the millipede genus Brachoria (Polydesmida: Xystodesmidae) Proc. US Nat. Mus. 109: 1-58.

Hoffman R.L. 1999. Checklist of the millipeds of North and Middle America. Virginia Museum of Natural History Special Publication. No. 8. Martinsville: Virginia Museum of Natural History.

Title Illustrations
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Scientific Name Brachoria hansonia
Location USA, Kentucky, Bell Co.
Reference Marek P.E. 2010. A revision of the Appalachian millipede genus Brachoria Chamberlin, 1939 (Polydesmida: Xystodesmidae: Apheloriini). Zool. J. Linn. Soc. 159: 817-889.
Specimen Condition Live Specimen
Sex m
Life Cycle Stage adult
View dorsal
Collection FMNH
Collector Paul Marek
Image Use creative commons This media file is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0.
Copyright © Paul Marek
About This Page
Work on the millipede Tree of Life pages was supported by a U.S. National Science Foundation Doctoral Dissertation Improvement Grant to Paul Marek and Jason Bond (DEB 0607996) and a Partnerships for Enhancing Expertise in Taxonomy Grant to Petra Sierwald, Jason Bond, and William Shear (DEB 0529715).

Paul Marek
Virginia Polytechnic Institute and State University

Correspondence regarding this page should be directed to Paul Marek at

Page: Tree of Life Brachoria hansonia Causey 1950. The Pineville Mimic Millipede. Authored by Paul Marek. The TEXT of this page is licensed under the Creative Commons Attribution-NonCommercial License - Version 3.0. Note that images and other media featured on this page are each governed by their own license, and they may or may not be available for reuse. Click on an image or a media link to access the media data window, which provides the relevant licensing information. For the general terms and conditions of ToL material reuse and redistribution, please see the Tree of Life Copyright Policies.

Citing this page:

Marek, Paul. 2010. Brachoria hansonia Causey 1950. The Pineville Mimic Millipede. Version 16 September 2010 (under construction). http://tolweb.org/Brachoria_hansonia/144220/2010.09.16 in The Tree of Life Web Project, http://tolweb.org/

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