Nannaria botrydium, Means & Hennen & Marek, 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

publication ID	https://dx.doi.org/10.3897/zookeys.1030.62544
persistent identifier	https://treatment.plazi.org/id/B07EB7F2-D5DA-5209-B208-D789AA5F0E57
treatment provided by	ZooKeys by Pensoft
scientific name	Nannaria botrydium
status	sp. nov.

Treatment

Nannaria botrydium View in CoL sp. nov. Figs 92 View Figure 92 , 93 Vernacular name: "The Grapefield Road Twisted-Claw Millipede" View Figure 93

Material examined.

Holotype: United States - Virginia • ♂; Bland County, 2.6 km west of Hicksville ; 37.1892°N, - 81.1633°W; elev. 738 m; 12 Feb. 2016; hand collected; D. Hennen, P. Marek leg.; VTEC MPE00993 View Materials . GoogleMaps

Paratypes: United States - Virginia • 1 ♂; Bland County, 2.7 km west of Hicksville ; 37.1913°N, - 81.165°W; elev. 754 m; 12 Feb. 2016; hand collected; D. Hennen, P. Marek leg.; VMNH MPE00992 View Materials GoogleMaps • 1 ♀; Bland County, 4.2 km northwest of Hicksville ; 37.19314°N, - 81.18221°W; elev. 900 m; 2 Mar. 2016; hand collected; J. Means, P. Marek leg.; VTEC MPE01014 View Materials GoogleMaps .

Other material.

United States - Virginia • 1 ♂; Bland County; 37.1940°N, - 81.1733°W, elev. 823 m; 2 Mar. 2016; hand collected; J. Means, P. Marek, Tyler leg.; VTEC MPE01012 View Materials • 1 ♂; Bland County; 37.1937°N, - 81.1739°W; elev. 815 m; 2 Mar. 2016; hand collected; J. Means, P. Marek, Tyler leg.; VTEC MPE01013 View Materials • 2 ♂♂; Bland County ; 37.1930°N, - 81.1827°W; elev. 905 m; 2 Mar. 2016; hand collected; J. Means, P. Marek, Tyler leg.; VTEC MPE01009 View Materials , 1011 • 1 ♂; Bland County ; 37.1830°N, - 81.1607°W; elev. 675 m; 7 Mar. 2016; hand collected; P. Marek, V. Wong, Tyler leg.; VTEC MPE01016 View Materials • 1 ♂ and 1 ♀; Bland County ; 37.1234°N, - 81.1355°W; elev. 889 m; 7 Apr. 2016; hand collected; J. Means, P. Marek, A. Prewitt, Tyler, Renea leg.; VTEC MPE03721 View Materials , 3722 • 4 ♂; Tazewell County , Summit of East River Mtn. , above Bluefield, West Virginia; 37.2112°N, - 81.3164°W; elev. 914-1067 m; 9 Sep.1972; W. Shear leg.; VMNH NAN0015 • 2 ♂♂; Tazewell County , SE slope of East River Mountain near Cove Creek ; 37.2067°N, - 81.3072°W; 29 Mar. 1973; C. Chapman leg.; VMNH NAN0043; SCAU - West Virginia • 1 ♂; Mercer County , just over the West Virginia state line on 460, ca. 2 mi. SW of Glen Lyn on 219/8; 37.3452°N, - 80.9105°W; elev. 570 m; 12 Nov. 2017; hand collected; J. Means; VTEC MPE03925 View Materials • 1 ♂; Randolph County , Cheat Bridge, TNC Preserve, Showers Fk at GoogleMaps US 250; 38.6166°N, - 79.8707°W; elev. 1174 m; 8 Oct. 2000; W. Arnold leg.; VMNH NAN0081. For detailed collection data see Suppl. material 7 GoogleMaps .

Diagnosis.

Adult males of Nannaria botrydium sp. nov. are distinct from other Nannaria and the sympatric N. aenigma , based on the following combination of characters: Gonopods. Gonopodal acropodite gently curving medially before apex, with lateral flange on tip, not thin and undulating as in N. aenigma . Acropodite tip directed caudally. Acropodite without medial swelling as in N. tenuis sp. nov. Telopodite basal zone> 1/3 length of acropodite, not ca. 1/6 as in N. aenigma . Prefemur with long, thin prefemoral process, bent 90° and directed medially at half-way point (Fig. 92A View Figure 92 , red arrow)-not nearly linear as in N. tenuis sp. nov., or straight as in N. aenigma . Prefemoral spine reduced and fused for entire length with prefemoral process (Fig. 92C View Figure 92 , red triangle), not lacking as in N. aenigma and N. tenuis sp. nov. Color. Tergites with bright red paranotal spots (Fig. 93 View Figure 93 ). Black background. Dorsum of collum smooth with red margin.

Measurements.

♂ holotype (VTEC, MPE00993): BL = 27.0, CW = 3.8, IW = 1.9, ISW = 0.8, B11W = 4.7, B11H = 3.0; ♀ paratype (VTEC, MPE01014): BL = 26.7, CW = 3.2, IW = 1.9, ISW = 0.9, B11W = 3.9, B11H = 2.8.

Variation.

No known variation.

Distribution.

Known only from a small area (<10 km2) west of Hicksville, Virginia (Virginia: Bland and Tazewell counties; Suppl. material 5; Fig. 126 View Figure 126 . A single male is recorded from Randolph County, West Virginia (ca. 200 km away from type locality), but as this is such a disjunct record, the authors are treating this specimen as an N. botrydium sp. nov. with an incorrect locality label (marked with an asterisk in Fig. 127 View Figure 127 ). Distribution area: 10 km2; status: MRE.

Ecology.

Individuals of N. botrydium sp. nov. were collected from mesic hardwood forests composed of oak, maple, and rhododendron, found under leaf litter and occasionally 1-2 cm in dark soil.

Etymology.

This species is named after Grapefield Road, which runs near the type locality. The specific name is a Latinized diminutive of the Greek botrys, meaning a cluster of grapes.

Type locality.

United States, Virginia, Bland County, 2.6 km west of Hicksville, 37.1892°N, - 81.1633°W.