Sigmoria planca

Familia: Xystodesmidae
Genus: Sigmoria
Species:

Sigmoria planca Loomis, 1944.

Type locality: United States of America, Georgia, Thomas County, Thomasville.

Typus: Holotype ♂ MCZ, 27-VII-1942, legit. V.E. Shelford. (Alsoe see Paratype ♂, 24-VII-1942, legit. V.E. Shelford from Florida, Alachua County, Gainsville.

• Cheiropus plancus Loomis, 1944: 171, figs. 3a-b. Protonym; Chamberlin & Hoffman 1958: 26; Shelley, 1984: 267, figs. 1-7. (Note, mis-cited in some catalogs as revised combination); Hoffman, 1999: 302; Marek & Bond, 2007: 37; Marek, Tanabe & Sierwald, 2014: 16.
• Sigmoria (Cheiropus) planca (Loomis, 1944); Shelley, 1986: in Shelley & Whitehead, 1986 101. Comb. nov. (repeated as synonym in Marek, Tanabe & Sierwald, 2014: 16) mis-citing Shelley, 1984; supplement to Means et al. 2021: S37. Rest. comb.
• Sigmoria (Cheiropus) plancus [sic] (Loomis, 1944); in Hoffman, 1999: 302 (Note: as synonym, mis-citing Shelley, 1984. Else, as the species epithet is a latin 3 termination adjective, the formation here contradicts feminine gender agreement)

• Loomis, H.F. 1944. Millipeds Principally Collected by Professor V. E. Shelford in the Eastern and Southeastern States. Psyche 51: 166–177. BHL Reference page. 

• Chamberlin, R.V. & Hoffman, R.L. 1958. Checklist of the Millipeds of North America. Bulletin - United States National Museum (=United States National Museum Bulletin) No. 212. 236 pp. Online Full text Reference page. 
• Shelley, R.M. 1984. Revision of the milliped genus Cheiropus (Polydesmida: Xystodesmidae). Proceedings of the Biological Society of Washington 97(2): 263–284. BHL Reference page. 
• Shelley, R.M. & Whitehead, D.R. 1986. A reconsideration of the milliped genus Sigmoria, with a revision of Deltotaria and an analysis of the genera in the tribe Apheloriini (Polydesmida: Xystodesmidae). Memoirs of the American Entomological Society 35: 1-223. BHL Reference page. 
• Hoffman, R.L. 1999: Checklist of the Millipeds of North and Middle America. Virginia Museum of Natural History Special Publication 8. Martinsville, VA, 584 pp. PDF Reference page. 
• Marek, P.E. & Bond, J.E. 2007. A reassessment of apheloriine millipede phylogeny: additional taxa, Bayesian inference, and direct optimization (Polydesmida: Xystodesmidae). Zootaxa 1610: 27–39. Abstract & excerpt DOI: 10.11646/zootaxa.1610.1.2 Reference page. 
• Marek, Tanabe & Sierwald, 2014. A species catalog of the millipede family Xystodesmidae (Diplopoda: Polydesmida). Virginia Museum of Natural History Special Publications 17: 1–117. PDF Reference page. 

• BHL bibliography
• Sigmoria planca – Taxon details on Encyclopedia of Life (EOL).
• Global Biodiversity Information Facility. 2019. GBIF Backbone Taxonomy. Checklist dataset. Taxon: Sigmoria planca.
• ION

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