The Jewel Mudbug, Lacunicambarus dalyae sp. nov., is a large, colorful primary burrowing crayfish found in Alabama, Florida, Georgia, Mississippi and Tennessee. This species is most similar in appearance to the Paintedhand Mudbug, L. polychromatus, a species found across the Midwestern United States. The ranges of the two species overlap minimally, and they can be distinguished from each other based on several characters, the most notable of which is the much longer central projection of the gonopod in Form I and II males of L. dalyae sp. nov. relative to L. polychromatus. Like its congeners, L. dalyae sp. nov. is commonly found in burrows in the banks and floodplains of streams and is resilient to a moderate amount of anthropogenic habitat degradation, being occasionally collected from burrows in roadside ditches and urban lawns.
Ainscough, B.J., Breinholt, J.W., Robison, H.W. & Crandall, K.A. (2013) Molecular phylogenetics of the burrowing crayfish genus Fallicambarus (Decapoda: Cambaridae). Zoologica Scripta, 42, 306–316.
Bland, L.M. (2017) Global correlates of extinction risk in freshwater crayfish. Animal Conservation, 20, 532–542.
Breinholt, J.W., Porter, M.L. & Crandall, K.A. (2012) Testing phylogenetic hypotheses of the subgenera of the freshwater crayfish genus Cambarus (Decapoda: Cambaridae). PLoS One, 7, e46105.
Clay, M., Stoeckel, J. & Helms, B.S. (2017) The role of abiotic and biotic cues in burrow habitat selection by juvenile crayfish. Behaviour, 154, 1177–1196.
Cottle, T.J. (1863) On the Two Species of Astacus Found in Upper Canada. Canadian Journal of Industry, Science and Arts, 45, 216–219.
Crandall, K.A., Robison, H.W. & Buhay, J.E. (2009) Avoidance of extinction through nonexistence: the use of museum specimens and molecular genetics to determine the taxonomic status of an endangered freshwater crayfish. Conservation Genetics, 10, 177–189.
Crandall, K.A. & De Grave, S. (2017) An updated classification of the freshwater crayfishes (Decapoda: Astacidea) of the world, with a complete species list. Journal of Crustacean Biology, 37, 615–653.
Faxon, W. (1884) Descriptions of new species of Cambarus, to which is added a synonymical list of the known species of Cambarus and Astacus. Proceedings of the American Academy of Arts and Sciences, 20, 107–158.
Fetzner, J.W.Jr. & Taylor, C.A. (2018) Two new species of freshwater crayfish of the genus Faxonius (Decapoda: Cambaridae) from the Ozark Highlands of Arkansas and Missouri. Zootaxa, 4399 (4), 491–430.
Fitzpatrick, J.F.Jr. (1978) A New Burrowing Crawfish of the Genus Cambarus from Southwest Alabama (Decapoda, Cambaridae). Proceedings of the biological society of Washington, 91, 748–755.
Girard, C. (1852) A revision of the North American Astaci, with observations on their habits and geographical distribution. Proceedings of the Academy of Natural Sciences of Philadelphia, 6, 87–91.
Glon, M.G., Thoma, R.F., Taylor, C.A., Daly, M. & Freudenstein, J.V. (2018) Molecular phylogenetic analysis of the devil crayfish group, with elevation of Lacunicambarus Hobbs, 1969 to generic rank and a redescription of the devil crayfish, Lacunicambarus diogenes (Girard, 1852) comb. nov. (Decapoda: Astacoidea: Cambaridae). Journal of Crustacean Biology, 38, 600–613.
Glon, M.G., Thoma, R.F., Daly, M. & Freudenstein, J.V. (2019) Lacunicambarus chimera: a new species of burrowing crayfish (Decapoda: Cambaridae) from Illinois, Indiana, Kentucky, and Tennessee. Zootaxa, 4544 (4), 451–478.
Hay, W.P. (1902) Observations on the crustacean fauna of Nickajack Cave, Tennessee, and vicinity. Proceedings of the United States National Museum, 25, 417–439.
Heath, W.H., Stewart, P.M., Simon, T.P. & Miller, J.M. (2010) Distributional survey of crayfish (Crustacea: Decapoda) in wadeable streams in the coastal plains of southeastern Alabama. Southeastern Naturalist, 9, 139–155.
Helms, B.S., Budnick, W., Pecora, P., Skipper, J., Kosnicki, E., Feminella, J. & Stoeckel, J. (2013) The influence of soil type, congeneric cues, and floodplain connectivity on the local distribution of the devil crayfish (Cambarus diogenes Girard). Freshwater Science, 32, 1333–1344.
Hobbs, H.H. (1942) A generic revision of the crayfishes of the subfamily Cambarinae (Decapoda, Astacidae) with the description of a new genus and species. The American Midland Naturalist, 28, 334–357.
Hobbs, H.H. (1969) On the distribution and phylogeny of the crayfish genus Cambarus. The distributional history of the biota of the southern Appalachians. Part I: Invertebrates. Research Division Monograph, 1, 93–178.
Hobbs, H.H. (1970) A New Crayfish from the Nashville Basin, Tennessee. Proceedings of the Biological Society of Washington, 83, 161–169
Hobbs, H.H. (1981) The crayfishes of Georgia. Smithsonian Contributions to Zoology, 318, 1–549.
Hobbs, H.H. (1989) An illustrated checklist of the American crayfishes (Decapoda: Astacidae, Cambaridae, and Parastacidae). Smithsonian Contributions to Zoology, 480, 1–244.
Hossain, M.A., Lahoz‐Monfort, J.J., Burgman, M.A., Böhm, M., Kujala, H. & Bland, L.M. (2018) Assessing the vulnerability of freshwater crayfish to climate change. Diversity and Distributions, 24, 1830–1843.
IUCN (2012) IUCN Red List categories and criteria, version 3.1, second edition. IUCN Species Survival Commission (SSC). Available from: https://portals.iucn.org/library/sites/library/files/documents/RL-2001-001-2nd.pdf (accessed 5 July 2019)
Jezerinac, R.F. (1993) A new subgenus and species of crayfish (Decapoda: Cambaridae) of the genus Cambarus, with an amended description of the subgenus Lacunicambarus. Proceedings of the Biological Society of Washington, 106, 532–544.
Le Conte, J. (1856) Description of New Species of Astacus from Georgia. Proceedings of the Academy of Natural Sciences of Philadelphia, 7, 400–402.
Lodge, D.M., Taylor, C.A., Holdich, D.M. & Skurdal, J. (2000) Nonindigenous crayfishes threaten North American freshwater biodiversity: lessons from Europe. Fisheries, 25, 7–20.
Loughman, Z.J. & Williams, B.W. (2018) Cambarus polypilosus, a new species of stream-dwelling crayfish (Decapoda: Cambaridae) from the Western Highland Rim of Tennessee, USA. Zootaxa, 4403 (1), 171–185.
Miller, J.M. & Stewart, P.M. (2013) Historical vs. current biological assemblages in the Little Choctawhatchee Watershed, southeastern AL. Southeastern naturalist, 12, 267–282.
Miller, J.M., Niraula, B.B., Reátegui-Zirena, E.G. & Stewart, P.M. (2014) Life history and physical observations of primary burrowing crayfish (Decapoda: Cambaridae) Cambarus (Lacunicambarus) diogenes and Cambarus (Tubericambarus) polychromatus. Journal of Crustacean Biology, 34, 15–24.
R Core Team (2017) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. Available from: https://www.R-project.org/ (accessed 5 July 2019)
Reynolds, J., Souty-Grosset, C. & Richardson, A. (2013) Ecological roles of crayfish in freshwater and terrestrial habitats. Freshwater Crayfish, 19, 197–218.
Richman, N.I., Böhm, M., Adams, S.B., Alvarez, F., Bergey, E.A., Bunn, J.J., Burnham, Q., Cordeiro, J., Coughran, J., Crandall, K.A., Dawkins, K.L., DiStefano, R.J., Doran, N.E., Edsman, L., Eversole, A.G., Füreder, L., Furse, J.M., Gherardi, F., Hamr, P., Holdich, D.M., Horwitz, P., Johnston, K., Jones, C.M., Jones, J.P., Jones, R.L., Jones, T.G., Kawai, T., Lawler, S., López-Mejía, M., Miller, R.M., Pedraza-Lara, C., Reynolds, J.D., Richardson, A.M., Schultz, M.B., Schuster, G.A., Sibley, P.J., Souty-Grosset, C., Taylor, C.A., Thoma, R.F., Walls, J, Walsh, T.S. & Collen, B. (2015) Multiple drivers of decline in the global status of freshwater crayfish (Decapoda: Astacidea). Philosophical Transactions of the Royal Society B, 370, 20140060.
Schuster, G.A., Taylor, C.A. & Johansen, J. (2008) An annotated checklist and preliminary designation of drainage distributions of the crayfishes of Alabama. Southeastern Naturalist, 7, 493–505.
Simon, T.P. (2011) Conservation Status of North American Freshwater Crayfish (Decapoda: Cambaridae) from the Southern United States. In Proceedings of the Indiana Academy of Science, 120, 71–95.
Simon, T.P. & Morris, C.C. (2015) Cambarus (Lacunicambarus) erythrodactylus, a new species of crayfish (Decapoda: Cambaridae) of the Cambarus diogenes complex from Alabama and Mississippi, USA. Proceedings of the Biological Society of Washington, 127, 572–584.
Smith, J.B., Schuster, G.A., Taylor, C.A., Wynn, E.A. & McGregor, S.W. (2011) A Preliminary report on the distribution and conservation status of the Alabama Crayfish Fauna. Geological Survey of Alabama. Open file Report 1102. Geological Survey of Alabama, Tuscaloosa, Alabama, 190 pp.
Taylor, C.A. (2000) Systematic studies of the Orconectes juvenilis complex (Decapoda: Cambaridae), with descriptions of two new species. Journal of Crustacean Biology, 20, 132–152.
Taylor, C.A. & Schuster, G.A. (2004) The crayfishes of Kentucky. Illinois Natural History Survey, Champaign, Illinois, 220 pp.
Taylor, C.A., Schuster, G.A., Cooper, J.E., DiStefano, R.J., Eversole, A.G., Hamr, P., Hobbs III, H.H., Robison, H.W., Skelton, C.E. & Thoma, R.F. (2007) A reassessment of the conservation status of crayfishes of the United States and Canada after 10+ years of increased awareness. Fisheries, 32, 372–389.
Taylor, C.A. & Schuster, G.A. (2007) Compilation of Alabama crayfish museum holdings and construction of a geo-referenced database. Illinois Natural History Survey, 26, 1–14.
Thoma, R.F., Jezerinac, R.F. & Simon, T.P. (2005) Cambarus (Tubericambarus) polychromatus (Decapoda: Cambaridae), a new species of crayfish from the United States. Proceedings of the Biological Society of Washington, 118, 326–337.
Thoma, R.F., Fetzner, Jr. J.W., Stocker, G.W. & Loughman, Z.J. (2016) Cambarus (Jugicambarus) adustus, a new species of crayfish from northeastern Kentucky delimited from the Cambarus (J.) aff. dubius species complex. Zootaxa, 4162 (1), 173–187.
Wiken, E., Francisco, J.N. & Glenn, G. (2011) North American terrestrial ecoregions—Level III. Commission for Environmental Cooperation, Montreal, 149 pp.