Nannariina Hoffman 1964
Creators: name: Shelley, Rowland M.
name: Smith, Jamie M.
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia

description: Subtribe Nannariina Hoffman 1964, New Status
Diagnosis. Flexible and pliable Eurymerodesmini; mandibular stipes smooth, without ridges or projec- tions; postgonopodal sterna of males and all sterna of females essentially glabrous, caudal margins with acuminate, subtriangular spines subtending leg coxae; ambulatory prefemora with ventrodistal spines; pregonopodal tarsal claws of males twisted, broad, and spatulate. Gonopodal aperture glabrous, rounded or ovoid, margins not modified. Gonopods in situ medially oriented, cannulae mediad and telopodites extending anteriad over anterior margins of apertures; telopodites usually with variable prefemoral processes, acropodital hairs moderately long, usually discontinuous with light apical tufts on “inner” margins not obscuring “distal zones.” Cyphopodal valves of normal sizes and proportions for family, completely hidden in apertures, distal corners without extensions and projections.
Components. Nannaria and Mimuloria, both by Chamberlin; Oenomaea Hoffman (Hoffman 1964a, 1980, 1999; Hennen and Shelley 2015).
Distribution (Fig. 1, green; Fig. 16, red). East-Nearctic; endemic to the central and eastcentral US. The distribution extends, north/south, from Lake Ontario New York, northern Ohio, central Illinois, and Missouri south of the Missouri River to northeastern/eastcentral North Carolina, northernmost South Carolina, northern Georgia and Alabama, and northeastern Arkansas; east/west, it ranges from Virginia and Maryland west of Chesapeake Bay, eastcentral Pennsylvania, and adjacent New York to western Missouri and adjacent northern Arkansas.
Remarks. Because of their clearly shared ancestry, we transfer this taxon from Xystodesminae to Eurymerodesmini, which holds priority by 13 years for the tribal name. Nannariinan acropodital hairs are longer than in any xystodesmine taxon, and they extend (dis)continuously along primarily the “inner” surface rather than the “outer,” as shown by Chamberlin (1949, Fig 1) and Hoffman (1964a, Fig. 11) in the in situ gonopods of Nannaria minor Chamberlin. Additionally, eurymerodesminans and nannariinans are similar in overall body sizes and convexities of the dorsums. Divergence entailed development of a prefemoral process by Nannariina, which retained plain, ovoid apertures and traditional cyphopods, while Eurymerodesmina developed extreme elaborations of both, and their overlapping ranges in Arkansas and Missouri, west of the Mississippi River, and Illinois, Kentucky and Tennessee to the east, support our shared ancestry hypothesis. Molecular investigations are also in order.
description: Published as part of Shelley, Rowland M. & Smith, Jamie M., 2018, Expanded concept and revised taxonomy of the milliped family Xystodesmidae Cook, 1895 (Polydesmida: Leptodesmidea: Xystodesmoidea): incorporations of Euryuridae Pocock, 1909 and Eurymerodesmidae Causey, 1951, taxon revivals / proposals / transferrals, and a distributional update, pp. 1-41 in Insecta Mundi 660 on page 15, DOI: 10.5281/zenodo.3709976