Nannaria terricola (Williams & Hefner, 1928)

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

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Nannaria terricola (Williams & Hefner, 1928)


Nannaria terricola (Williams & Hefner, 1928) View in CoL View at ENA Figs 86 View Figure 86 , 87 Vernacular name: "The Northern Ohio Twisted-Claw Millipede" View Figure 87

Fontaria terricola Williams & Hefner, 1928: 106, fig. 9c.

Nannaria terricola : Loomis and Hoffman 1948: 53. Chamberlin and Hoffman 1958: 42. Hoffman 1999: 368. Marek et al. 2014: 38. Means et al. 2021: S73.

Material examined.

Syntypes: United States - Ohio • 6 ♀♀; labeled as cotypes, Butler County, Oxford, Hueston's Woods ; [39.5800°N, - 84.7600°W]; NMNH #2269 GoogleMaps .

Other material.

United States - Ohio • 1 ♂; Adams County, West Union, Edge of Appalachia Preserve , Abner Hollow Trail , not far up the trail, after the uphill walk; 38.7213°N, - 83.4335°W; elev. 231 m; 16 June 2016; hand collected; J. Means, D. Hennen leg.; VTEC MPE03714 View Materials GoogleMaps 5 ♀♀; same collection data as preceding; VTEC MPE01721 View Materials GoogleMaps -24, 1738 • 9 ♂♂; Butler County, Oxford (39.5069°N, - 84.7452°W), 1928, Coll: R. Hefner leg.; VMNH NAN0329 GoogleMaps 3 ♂; Harrison County, Hopedale , in old field; 40.3252°N, - 80.9013°W; 29 Apr. 1979; R. Urbanek leg.; VMNH NAN0325 GoogleMaps 2 ♀♀; Hocking County, Crane Hollow Nature Preserve, in hollow behind Ellis House ; 39.4913°N, - 82.5797°W; elev. 290 m; 15 June 2016; hand collected; J. Means, D. Hennen leg.; VTEC MPE01690 View Materials GoogleMaps , 1691 • 3 ♂♂; Logan County, Bellefontaine, Fred Corker Park ; 40.3640°N, - 83.7330°W; elev. 435 m; 3 Nov. 2016; hand collected; J. Brown leg.; VTEC MPE02234 View Materials GoogleMaps , 2235, 2238 • 2 ♀♀; same collection data as preceding; VTEC MPE02236 View Materials GoogleMaps , 2237 • 1 ♂; Stark County, Stark Wilderness Center ; 40.6720°N, - 81.6420°W; 1 May 1971; W. Shear leg.; VMNH NAN0047. For detailed collection data see Suppl. material 7 GoogleMaps .


Adult males of Nannaria terricola are distinct from other Nannaria , the sympatric N. ohionis , and the nearby N. shenandoa , based on the following combination of characters: Gonopods. Gonopodal acropodite very slightly curving medially before apex, nearly straight, not strongly curving medially as in N. shenandoa , or obviously curving medially as in N. ohionis . Distal zone and tip short, simple, bent at 90° angle to acropodite and curving dorsally-not bending medially as in N. ohionis , or large, with flanges, curving posterolaterally as in N. shenandoa . Telopodite basal zone ca. 1/2 length of acropodite, not ca. 1/3 as in N. ohionis , or ca. 1/4 as in N. shenandoa . Telopodite basal zone with lateral bulge (Fig. 86A View Figure 86 , red arrow), lacking in both N. ohionis and N. shenandoa . Prefemur with straight acicular prefemoral process, not curving laterally as in N. shenandoa . Prefemoral process arising from prefemur, not from top of prefemoral spine as in N. ohionis . Prefemoral spine reduced to small ridge, fused with prefemoral process (Fig. 86B View Figure 86 , red triangle), not large, projecting, acicular as in N. ohionis . Color. Tergites with either white or pale orange paranotal spots (Fig. 87 View Figure 87 ). Tan to dark brown background. Dorsum of collum smooth with either white or pale orange caudal margin, depending on color morph.


♀ syntype (NMNH, #2269): BL = 21.7 CW = 3.1, IW = 1.8, ISW = 0.9, B11W = 4.0, B11H = 3.1.


No known variation.


Known from throughout central and southern Ohio (Ohio: Adams, Butler, Harrison, Hocking, Logan, Preble, and Stark counties; Suppl. material 7; Fig. 127 View Figure 127 ). Distribution area: 33,812 km2; status: WRE.


Individuals of N. terricola have been collected from mesic hardwood forests composed of sycamore, maple, beech, cherry, hemlock, oak, birch, pawpaw, spicebush, and alder. They were often found under leaf litter and logs on hillsides, occasionally under 1-2 cm of dark soil.


Williams and Hefner (1928) gave no explanation for the name terricola in their description of the species, but it is assumed that it is derived from the Latin terricolus, terrestrial.

Type locality.

United States, Ohio, Butler County, Oxford, Hueston’s Woods; [39.5800°N, - 84.7600°W].


In the original publication, Williams and Hefner (1928: 106, 107) did not designate type specimens, but mentioned that adults were collected, implying the existence of a type series. Upon investigation of the type material deposited at the NMNH we found that six female syntypes existed (NMNH #2269). Where the male specimen which Williams and Hefner (1928) illustrated and described currently resides is unknown.














Nannaria terricola (Williams & Hefner, 1928)

Means, Jackson C., Hennen, Derek A. & Marek, Paul E. 2021

Fontaria terricola

Williams & Hefner 1928
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