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A trimaculate male of the diplopod genus Apheloria Chamberlin (Polydesmida: Xystodesmidae/-inae: Apheloriini) from 1.3 km (0.8 mi) west of McKenney, Dinwiddie County (Co.), Virginia, is designated the Neotype of Julus virginiensis Drury 1770, thereby stabilizing the earliest name for a North American milliped and authenticating its prior assignment to this taxon. The existing concept of Apheloria is accepted in the absence of a revisionary treatment, and a modern description of A. v. virginiensis with gonopod drawings and color photos is provided. Drury’s original account and his letter to the Virginian who sent him the original specimens are quoted verbatim to eliminate future library searches. The specific name has been associated with at least three genera, and its confusing history is clarified by summarizing works in each. Authentic localities, mapped to the extent now possible, reveal a distribution south of the James River in piedmont and coastal Virginia that extends southwestward to the Blue Ridge foothills and at least as far south in North Carolina (NC) as Greensboro, the “Triangle” (Raleigh/Durham/Chapel Hill region), and Albemarle Sound in the east. Based on the holotypes, A. aspila and A. tigana, both by Chamberlin, are placed in synonymy under A. v. virginiensis (syns. nov.), and although its status is still under review, A. waccamana Chamberlin, whose type locality is Lake Waccamaw, Columbus Co., in southeastern NC, may be the correct name for today’s A. tigana. All samples so labeled must be reexamined for misidentifications of A. v. virginiensis.
Characterized by small body size, apically rounded/lobed anterior gonopod telopodites, long slender posterior gonopod telopodites, and torsion in the cyphopod receptacles, Floridobolus fl oydi, n. sp., is described from the southern sector of the Brooksville Ridge in northwestern peninsular Florida. It inhabits sandy “Big Scrub” environments like F. penneri Causey, 1957, and F. orini Shelley, 2014, and is documented from the sector’s center and northern periphery, in Hernando and Citrus Counties, respectively, with a sight record from the eastern periphery. Its discovery supports the thesis that each sand ridge in peninsular Florida may harbor a unique species of this endemic genus.
We present the first measurements of charge-dependent correlations on angular difference variables η1 − η2 (pseudorapidity) and φ1 − φ2 (azimuth) for primary charged hadrons with transverse momentum 0.15 <= pt <= 2 GeV/c and |η| <= 1.3 from Au–Au collisions at √sNN = 130 GeV. We observe correlation structures not predicted by theory but consistent with evolution of hadron emission geometry with increasing centrality from one-dimensional fragmentation of color strings along the beam direction to an at least two-dimensional hadronization geometry along the beam and azimuth directions of a hadron-opaque bulk medium.