Nannaria "Ridgeway", 2021

Means, Jackson C., Hennen, Derek A. & Marek, Paul E., 2021, A revision of the minor species group in the millipede genus Nannaria Chamberlin, 1918 (Diplopoda, Polydesmida, Xystodesmidae), ZooKeys 1030, pp. 1-180 : 1

Nannaria "Ridgeway" incertae sedis Fig. 124

Material examined.

United States - Virginia • 1 ♂; Henry County, Ridgeway ; 36.5766°N, - 79.8586°W; 27 Nov. 1961; R. Hoffman leg.; VMNH NAN0269. For detailed collection data see Suppl. material 7 .

Hypothesized placement.

Nannaria “Ridgeway” specimens are hypothesized to be closely related to Nannaria "Moores Springs" based on close geographic proximity and the following combination of gonopodal characters. Acropodite simple, directed medially. Telopodite basal zone with raised ridge (Fig. 124A , red arrow). Prefemoral spine pronounced and claw-like (Fig. 124B , red triangle). Nannaria “Ridgeway” specimens differ from "Moores Springs" based on the following combination of gonopodal characters: Prefemoral process small, curving ventrolaterally, not long, nearly straight as in "Moores Springs." Acropodite with slight medial swelling (Fig. 124A , red oval), lacking in "Moores Springs."

Figures

Figure 124. Nannaria " Ridgeway " incertae sedis ♂ (VMNH, NAN 0269) left gonopod A anterior view, red arrow indicates raised basal ridge, red oval indicates acropodite medial swelling B medial view; red triangle indicates hook-liked prefemoral spine C posterior view. Scale bar: 0.5 mm.