Nannaria dilatata
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Ordo: Polydesmida
Familia: Xystodesmidae
Genus: Nannaria
Name
Nannaria dilatata (Hennen & Shelley, 2015) – Wikispecies link – Pensoft Profile
- Mimuloria dilatata dilatata Hennen & Shelley, 2015: 1–16, figs 18, 19.
- Nannaria dilatata : Means et al. 2021[1]: S69.
Material examined
Holotype: United States – Tennessee • ♂; Marshall County, Henry Horton State Park, campground; [35.5875°N, -86.7035°W]; 9 May 1979; R. M. Shelley leg.; FSCA.
Paratype: United States – Tennessee • 1 ♀; same collection data as holotype; NCSM NCSM27945.
Other material
United States – Tennessee • 1 ♀; Marshall County, Henry Horton State Park, to the right of the main office, under moss on top of large boulder; 35.5914°N, -86.7029°W; 13 May 2017; hand collected; D. Hennen, J. Means, V. Wong leg.; VTEC MPE02788. For detailed collection data see Suppl. material 7.
Diagnosis
Adult males of N. dilatata are distinct from other Nannaria, including the nearby N. hippopotamus sp. nov. and Nannaria sp. nov. ‘Cratagae’ (wilsoni species group) based on the following combination of characters: Gonopods. Gonopodal acropodite gently curving anteromedially, not straight as in N. hippopotamus sp. nov. and Nannaria sp. nov. ‘Cratagae.’ Acropodite tip with prominent triangular lateral flange curving abruptly at a 90° angle towards tip (Fig. 78A, red triangle), not curving gently and rounded as in N. hippopotamus sp. nov. or lacking as in Nannaria sp. nov. ‘Cratagae.’ Acropodite with laminate medial flange just proximal to tip, not lacking as in N. hippopotamus sp. nov. and Nannaria sp. nov. ‘Cratagae.’ Acropodite simple, without medial swelling as in N. hippopotamus sp. nov. Telopodite basal zone ca. ¼ length of acropodite, not ca. ½ as in N. hippopotamus sp. nov. Prefemur with dorsomedially curving prefemoral process, not straight, acicular as in N. hippopotamus sp. nov. and Nannaria sp. nov. ‘Cratagae.’ Prefemoral spine reduced to small rounded lobe at base of prefemoral process (Fig. 78, red arrow), not sharp as in N. hippopotamus sp. nov. or lacking as in Nannaria sp. nov. ‘Cratagae.’ Color. Tergites with light orange paranotal spots and light pink stripes (Fig. 79). Light grey background. Dorsum of collum smooth with light pink margin.
Measurements
♂ holotype (FSCA): BL = 30.9, CW = 4.1, IW = 2.1, ISW = 0.8, B11W = 4.7, B11H = 3.5; ♀ paratype (NCSM, NCSM27945): BL = 28.1, CW = 3.5, IW = 2.0, ISW = 0.9, B11W = 4.5, B11H = 2.9.
Variation
Hennen and Shelley (2015)[2] noted some slight variation between the type locality males and the male collected from Davidson Co., Tennessee, including the latter having a smaller prefemoral spine, a more gradual distal curve of the acropodite, and a reduced acropodite medial swelling.
Distribution
Known only from central Tennessee (Tennessee: Davidson and Marshall counties, Fig. 129). Distribution area: N/A; status: MRE.
Ecology
Hennen and Shelley (2015)[2] provided no ecological notes in their description of N. dilatata, but the single individual collected by DAH for this revision was found under a damp mat of moss on a large boulder.
Etymology
Hennen and Shelley (2015[2]: 14) state “The specific name references the apical dilation on the outer/anterior acropodite surface.”
Type locality
United States, Tennessee, Marshall County, Henry Horton State Park, campground.
Notes
In the original publication, Hennen and Shelley (2015[2], 14) designated a male holotype (FSCA) and one male and two female paratypes (FSCA, NCSM), all collected by R. M. Shelley on May 9, 1979. Which paratypes were sent to either the FSCA or NCSM was not mentioned in the original publication; however, the NCSM had only one paratype (female, NCSM27945), implying that the other male and female paratypes are deposited at the FSCA.
Taxon Treatment
- Means, J; Hennen, D; Marek, P; 2021: A revision of the minor species group in the millipede genus Nannaria Chamberlin, 1918 (Diplopoda, Polydesmida, Xystodesmidae) ZooKeys, 1030: 1-180. doi
Images
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Other References
- ↑ Means J, Hennen D, Tanabe T, Marek P (2021) Phylogenetic systematics of the millipede family Xystodesmidae.Insect Systematics and Diversity5: 1–26. https://doi.org/10.1093/isd/ixab003
- ↑ 2.0 2.1 2.2 2.3 Hennen D, Shelley R (2015) A contribution on the milliped tribe Nannariini (Polydesmida: Xystodesmidae): Revalidation of Mimuloria Chamberlin 1928; identities of Fontaria oblonga C. L. Koch 1847, and Nannaria minor Chamberlin 1918; elucidation of the tribal range; and commentaries on Nannaria Chamberlin 1918, and Oenomaea Hoffman 1964.Insecta Mundi0418: 1–21. http://digitalcommons.unl.edu/insectamundi/924
