Nannaria paupertas, 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

http://dx.doi.org/10.3897/zookeys.1030.62544

publication LSID

lsid:zoobank.org:pub:48997D3B-9B4E-4348-8F30-0C8E8672569A

persistent identifier

http://treatment.plazi.org/id/C8B741BA-38E7-4472-9364-3A0F4EB52DAB

taxon LSID

lsid:zoobank.org:act:C8B741BA-38E7-4472-9364-3A0F4EB52DAB

treatment provided by

ZooKeys by Pensoft

scientific name

Nannaria paupertas
status

sp. nov.

Nannaria paupertas   sp. nov. Figs 22 View Figure 22 , 23 Vernacular name: "The Poverty Creek Twisted-Claw Millipede" View Figure 23

Material examined.

Holotype: United States - Virginia • ♂; Montgomery County, Blacksburg, Pandapas Pond , Poverty Creek Trail near forest access rd. 708; 37.2678°N, - 80.4852°W; elev. 648 m; 7 July 2014; hand collected; J. Means leg.; VTEC MPE00108 View Materials . GoogleMaps  

Paratype: United States - Virginia • 1 ♀; same collection data as holotype; VMNH MPE00109 View Materials GoogleMaps   .

Other material.

United States - Virginia • 1 ♂; Montgomery County, Pandapas Pond, NW of Blacksburg , Poverty Creek Trail ; 37.2805°N, - 80.4720°W; elev. 651 m; hand collected; D. Hennen leg.; VTEC MPE02084 View Materials GoogleMaps   1 ♂; Montgomery County, gully on north slope of Brush Mtn. off forest service road 208; 37.2764°N, - 80.4837°W; elev. 693 m; 9 May 2015; J. Means leg.; VTEC MPE00359 View Materials GoogleMaps   1 ♂; Montgomery County, Pandapas Pond , in bottomland below horse trail parking lot; 37.2824°N, - 80.4485°W; elev. 738 m; hand collected; J. Means leg.; VTEC MPE00834 View Materials GoogleMaps   1 ♀; same collection data as preceding; VTEC MPE00836 View Materials GoogleMaps   . For detailed collection data see Suppl. material 7   .

Diagnosis.

Adult males of Nannaria paupertas   sp. nov. are distinct from other Nannaria   and the sympatric N. ericacea   , based on the following combination of characters: Gonopods. Gonopodal acropodite gently curving medially before bending ventromedially at a nearly 90° angle (Fig. 22B View Figure 22 , red triangle), not straight as in N. ericacea   or curving dorsomedially as in N. cingulata   sp. nov. Distal zone short, bent dorsomedially at 90° angle, not laminate, curving medially with flanges as in N. ericacea   or bent dorsomedially at 45° as in N. cingulata   sp. nov. Acropodite tip directed dorsomedially, without flanges, not laminate and serpentine, directed medially as in N. ericacea   . Telopodite basal zone height > 1/3 length of acropodite, not greatly reduced as in N. ericacea   or with lateral bulge as in N. cingulata   sp. nov. Acropodite shaft swollen before apex, with medial flange, and sinuous region, not with lateral flange as in N. ericacea   or cingulum as in N. cingulata   sp. nov. Prefemur with prefemoral process curving ventromedially, not ventrally as in N. cingulata   sp. nov. and N. ericacea   . Prefemoral process (when viewed medially) coplanar with acropodite, not crossing acropodite as in N. ericacea   . Prefemoral process 2/3 length of acropodite, not subequal as in N. ericacea   or 1/2 length as in N. cingulata   sp. nov. Prefemoral spine prominent, acicular, not reduced as in N. cingulata   sp. nov. or absent as in N. ericacea   . Color. Tergites with orange paranotal spots (Fig. 23 View Figure 23 ). Dark brown background. Dorsum of collum smooth with orange margin.

Measurements.

♂ holotype (VTEC, MPE00108): BL = 30.3, CW = 4.1, IW = 2.1, ISW = 0.9, B11W = 4.8, B11H = 3.1; ♀ paratype ( VMNH, MPE00109): BL = 31.7, CW = 4.0, IW = 2.2, ISW = 1.0, B11W = 5.1, B11H = 3.6.

Variation.

A dead male collected from Craig County is morphologically similar to N. paupertas   sp. nov., with the exception of a prefemoral process which is straight for most of its length before bending nearly 90° ventrally, and a highly reduced prefemoral spine. Genetic sequences of a sympatric female did not support conspecificity with N. paupertas   sp. nov. (Suppl. material 7), and therefore the Craig County population may represent a separate species and is not included in N. paupertas   sp. nov.

Distribution.

Known only from a small area around Pandapas Pond (an impoundment of Poverty Creek) in Montgomery County, Virginia (Virginia: Montgomery County, Suppl. material 7; Fig. 126 View Figure 126 ). Distribution area: 2 km2; status: MRE.

Ecology.

Individuals of N. paupertas   sp. nov. have been collected from the side of walking trails in mesic, broadleaved forests, composed of oak, maple, ferns, and scattered pine, under deciduous leaf litter adjacent to rhododendron groves.

Etymology.

This species is named for the Poverty Creek Trail by which it was first collected. The specific name is derived from the Latin paupertas, meaning poverty, and is a noun in apposition.

Type locality.

United States, Virginia, Montgomery County, Blacksburg, Pandapas Pond, Poverty Creek Trail near forest access rd. 708, 37.2678°N, - 80.4852°W.