Center for Systematic Entomology, Gainesville, Florida


Date of this Version



Insecta Mundi 0529: 1–13


Published in 2017 by Center for Systematic Entomology, Inc. P. O. Box 141874 Gainesville, FL 32614-1874 USA

Copyright held by the author(s). This is an open access article distributed under the terms of the Creative Commons, Attribution Non-Commercial License


The genus Speorthus Chamberlin is revalidated for S. tuganbius Chamberlin and S. reyesi, new species (Diplopoda, Polydesmida, Macrosternodesmidae). The families Polydesmidae and Macrosternodesmidae (as they occur in North America) are briefly discussed, and their component North American genera listed. The validity of Macrosternodesmidae is reaffirmed; the family is predominantly North American. Nearctodesminae, new status, is formally designated as a subfamily of Macrosternodesmidae. The superfamily Trichopolydesmoidea is synonymized with the superfamily Polydesmoidea, new combination.