A revision of the minor species group in the millipede genus Nannaria Chamberlin, 1918 (Diplopoda, Polydesmida, Xystodesmidae) Author Means, Jackson C. https://orcid.org/0000-0001-7377-0696 Virginia Tech, Department of Entomology, Blacksburg, Virginia 24061, USA mjacks4@vt.edu Author Hennen, Derek A. https://orcid.org/0000-0001-7005-1151 Virginia Tech, Department of Entomology, Blacksburg, Virginia 24061, USA Author Marek, Paul E. https://orcid.org/0000-0002-7048-2514 Virginia Tech, Department of Entomology, Blacksburg, Virginia 24061, USA text ZooKeys 2021 2021-04-13 1030 1 180 http://dx.doi.org/10.3897/zookeys.1030.62544 journal article http://dx.doi.org/10.3897/zookeys.1030.62544 1313-2970-1030-1 875199397EEE5F7898EA1DB25DA62D25 Nannaria "Peden" incertae sedis Fig. 122 Material examined. United States - North Carolina • 1 ♂ ; Alleghany County , 10 mi W Spart , 0.1 mi NE on 1308 jct 1303; 36.4987°N , - 81.3080°W ; 17 May 1980 ; R. Shelley , MSM leg.; NCSM NAN0496. For detailed collection data see Suppl. material 7 . Hypothesized placement. Nannaria "Peden" specimens are hypothesized to be closely related to Nannaria tasskelsoae sp. nov. based on the following combination of gonopodal characters: Telopodite prefemoral process arising medially from pronounced, tooth-like prefemoral spine (Fig. 122A , red arrow). Prefemoral process paralleling acropodite throughout majority of length. Nannaria "Peden" specimens differ from N. tasskelsoae sp. nov. based on the following combination of gonopodal characters: Acropodite tip serpentine, resembling snake prepared to strike, directed dorsally (Fig. 122B , red triangle), not directed medially as in N. tasskelsoae sp. nov. Figure 122. Nannaria "Peden" incertae sedis ♂ (NCSM, NAN0496) left gonopod A anterior view; red arrow indicates prefemoral process arising medially from pronounced prefemoral spine B medial view; red triangle indicates dorsally directed acropodite tip C posterior view. Scale bar: 0.5 mm.