The Bad Branch Mimic MillipedePaul Marek
Brachoria badbranchensis individuals are about 42.3 mm long and 9.8 mm wide (females 49.2 mm X 11.10 mm). Color: Striped yellow (10YR 8/14, shown above) or pink; and 3-spotted yellow.
Brachoria badbranchensis genitalia - left male gonopodal acropodite (with setae removed): (Left) medial view and (Right) magnified apical view. © Paul Marek
Brachoria badbranchensis, 3-spotted yellow color morph. © Paul Marek
Brachoria badbranchensis, striped pink color morph. © Paul Marek
HabitatBrachoria badbranchensis specimens were collected during the day (15:00) in a forest comprising rhododendron, maple, umbrella magnolia, and hemlock trees. Millipedes were encountered between a lowland moist hemlock forest and an upland relatively drier maple and oak forest. Individuals were found beneath layers of decomposing leaf material near Bad Branch, about 30 m above (west of) the water. Another population of B. badbranchensis occurs on the north slope of Pine Mountain in James E. Bickford Nature Preserve (see B. gracilipes for habitat details there). One other xystodesmid encountered sympatrically at the Bad Branch locality is Apheloria virginiensis corrugata, which has a mimetic resemblance with B. badbranchensis. Other xystodesmids encountered on the nature preserve were B. splendida, B. gracilipes, Pleuroloma flavipes, and undescribed species of Nannaria. Note: Individuals of B. badbranchensis may easily be confused in the field with A. virginiensis corrugata, B. splendida, B. gracilipes, and P. flavipes due to similarity in color patterns and overlap in distribution.
DistributionKnown only from the type locality in Letcher Co., Kentucky and James E. Bickford Nature Preserve near the town of Pine Mountain in Harlan Co., KY. The closest known Brachoria species, B. hoffmani, occurs about 15 air km northeast in Jefferson National Forest near Pound Gap, Wise County, Virginia. Brachoria insolita occurs about 22 air km southeast in Norton City, Virginia.
Conservation statusBrachoria badbranchensis is threatened by habitat loss due to agriculture (especially growing demand for paper products), coal mining, development, and the invasion of exotic species.
Marek P.E. 2010. A revision of the Appalachian millipede genus Brachoria Chamberlin, 1939 (Polydesmida: Xystodesmidae: Apheloriini). Zool. J. Linn. Soc. 159: 817-889.
About This PageWork 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).
Virginia Polytechnic Institute and State University
Correspondence regarding this page should be directed to Paul Marek at
Page copyright © 2010 Paul Marek
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- First online 16 September 2010
- Content changed 16 September 2010
Citing this page:
Marek, Paul. 2010. Brachoria badbranchensis http://tolweb.org/Brachoria_badbranchensis/144819/2010.09.16 in The Tree of Life Web Project, http://tolweb.org/. The Bad Branch Mimic Millipede. Version 16 September 2010 (under construction).