Boraria infesta ( Chamberlin, 1918 )

Shelley, Rowland M., McAllister, Chris T., Nagy, Christopher M., Weckel, Mark E., Christie, Roderick G., Wilson, Paul & Wilson, Allan, 2011, Distribution of the American milliped genus Boraria Chamberlin, 1943: Introductions of B. stricta (Brölemann, 1896) in New York and B infesta (Chamberlin, 1918) in Connecticut; indigenous occurrence of B profuga (Causey, 1955) in Louisiana (Diplopoda: Polydesmida: Xystodesmidae)., Insecta Mundi 2011 (194), pp. 1-8 : 4-6

Boraria infesta ( Chamberlin, 1918) ( Fig. 4 . 6-7)

Distribution. Boraria infesta occupies a single, continuous area that is almost exclusively in the Blue Ridge and primarily in North Carolina. It extends, north-south, from southern Grayson Co., Virginia, to Transylvania Co., North Carolina, and then spreads westward into eastern Monroe Co., Tennessee. The eastern border coincides with the Blue Ridge Escarpment but spreads into the western Piedmont Plateau in Wilkes Co., North Carolina. The western border adheres to the North Carolina / Tennessee

border, crossing into the latter state in Carter, Greene, Sevier, and Monroe counties (Fig. 13). As with B. stricta , the Connecticut locality can only represent an intra-continental introduction from the indigenous area, some 960 km (600 mi) to the southwest (Fig. 12). Published records. Tennessee: Carter, Monroe, and Sevier counties ( Chamberlin 1918, Chamberlin and Hoffman 1958, Hoffman 1965). North Carolina : Alleghany, Ashe, Avery, Buncombe, Graham, Haywood, Henderson, Jackson, McDowell, Mitchell, Transylvania, Watauga, Wilkes, and Yancey counties ( Chamberlin 1918; Chamberlin and Hoffman 1958; Hoffman 1965, 1999; Hoffman and Shear 1969; Shelley 2000). New records. Virginia: Grayson Co., Lewis Fork Trail, along Fox Creek, M, 27 May 1984, R.W. Baumann, C.R. Nelson (NCSM). Tennessee: Greene Co., along Paint Creek, M, 25 May 1950, R.M. Snider (UMMZ). Connecticut, Hartford Co., Avon, in leaves and pine needles on side of Hunter Rd., M, 2F, 25 April 2010, A. and P. Wilson (NCSM). Introduced Population, New State Record. Remarks. A year after identifying the MRGP sample of B. stricta, RMS received the Connecticut sample of B. infesta , characterized by red paranota and the ventromedially directed acropodal apex ( Fig. 4 , 6-7), from the last two authors; three individuals were sent out of a dozen or so discovered. Residents along Hunter Rd. were familiar with the milliped, suggesting an established population in northcentral Connecticut. Again, investigating the extent of the B. infesta introduction constitutes a worthy project for a regional biology Figures 5-11. Boraria spp. , anatomical features. 5) B. student. stricta , left gonopod of male from Westchester Co., New

York, medial view. 6) B. infesta , telopodite of left gonopod

of male from Hartford Co., Connecticut, medial view. 7) Boraria deturkiana ( Causey, 1942) (Fig. 8-9) Apex of acropodite of the same, sublateral view. 8) B.

deturkiana, telopodite of left gonopod of male from Sevier

Co., Tennessee, medial view. 9) Coxa of midbody leg of Distribution. Characterized by ventrally

the same, ventral view. 10) B. profuga , telopodite of left spined postgonopodal coxae and by the apically

gonopod of male from Ouachita Par., Louisiana, prolonged acropodite (Fig. 8-9), B. deturkiana oc- anteromedial view. 11) Apex of acropodite of the same, cupies a subcircular range in southwestern North medial view. Scale line = 0.50 mm for Fig. 5-8 and 10-11, Carolina and the GSMNP in Tennessee. The few 0.90 mm for Fig. 9. new records do not materially expand the known distribution (Fig. 13); we include them along with gonopodal and coxal illustrations so that all four species of Boraria are treated and illustrated together. Published records. North Carolina : Haywood, Jackson, Macon, and Swain counties ( Causey 1942; Chamberlin and Hoffman 1958; Hoffman 1965, 1999). Tennessee: Blount and Sevier counties ( Causey 1942; Chamberlin and Hoffman 1958; Hoffman 1965, 1999). New records. North Carolina : Haywood Co., Pisgah National Forest near Shining Rock Ridge, M, F, 24 June-2 July 1961, D. and P. Weems (FSCA). Jackson Co., headwaters of Wolf Cr., M, 3 July 1949, R.L. Humphries (NCSM). Swain Co., GSMNP, Clingman’s Dome, 2M, F, H.A. Pilsbry (USNM).

Tennessee: Sevier Co., GSMNP, Greenbrier Cove, 2F, 13 June 1942, H.S. Dybas (USNM).

Figures

Figures 1-4. Boraria spp. 1) A cluster of B. stricta under leaves on saturated substrate at Mianus River Gorge Preserve, Westchester Co., New York. 2) An individual of B. stricta climbing a log at this site; note the juvenile in the depression left of center. 3) A tributary of the Mianus River in the Preserve showing leaf litter and the surrounding deciduous forest, an ideal environment for B. stricta. 4) B. infesta from Avon, Hartford Co., Connecticut.