Pseudopolydesmus serratus, SERRATUS (SAY, 1821)
publication ID |
https://doi.org/ 10.1093/zoolinnean/zlz020 |
DOI |
https://doi.org/10.5281/zenodo.5719005 |
persistent identifier |
https://treatment.plazi.org/id/03E1C602-FFD1-FFED-FCC8-FCC042E13812 |
treatment provided by |
Carolina |
scientific name |
Pseudopolydesmus serratus |
status |
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PSEUDOPOLYDESMUS SERRATUS ( SAY, 1821) View in CoL
( FIGS 8 View Figure 8 , 32 View Figure 32 , 33 View Figure 33 )
Polydesmus serratus Say, 1821: 106 View in CoL , type material not extant. – Gervais, 1847: 105. – de Saussure, 1860: 325. – Peters, 1864: 539. – Bollman, 1887b: 620 (?= Po. pennsylvanicus View in CoL ). – Williams & Hefner, 1928: 112, fig. 13b.
Pseudopolydesmus serratus View in CoL – Attems, 1940: 141, uncertain placement. – Chamberlin, 1943c: 18. – Chamberlin, 1951: 27. – Causey, 1952: 6. – Chamberlin & Hoffman, 1958: 71. – Loomis, 1959: 161. – Ramsey, 1966: 339. – [ Withrow, 1988: 103, figs 12, 45, 46, 48, 57, 59, 63, 66, 67, 69, 78, 81, 94, 98, 102, 120, 122–126, map 8, tables 9–11.] – Hoffman, 1999: 446 (= Po. scopus ; Po. planicolens ). – Shelley, 2000: 246. – Shelley & Snyder, 2012: 6, figs 2–4.
Polydesmus canadensis View in CoL – Wood, 1865: 216, figs 43, 44. Mistaken identity!
Pseudopolydesmus canadensis View in CoL – Attems, 1898: 480, fig. 244. – Verhoeff, 1931: 305, figs 1–7. – Attems, 1940: 140, fig. 201. Mistaken identity!
? Polydesmus pennsylvanicus C. L. Koch, 1847: 133 View in CoL , type material unknown.
Polydesmus pensylvanicus View in CoL [sic] – C. L. Koch 1863b: 18, pl. 69: fig. 142.
Polydesmus scopus Chamberlin, 1942a: 16 View in CoL , fig. 1, ♂ HT (USNM, vidi).
Pseudopolydesmus scopus – Chamberlin & Hoffman, 1958: 71.
Polydesmus planicolens Chamberlin, 1942a: 16 View in CoL , fig. 2, ♂ HT (USNM, vidi).
Pseudopolydesmus planicolens – Chamberlin & Hoffman, 1958: 71.
Diagnosis
Size: Usually large, with body length ranging from 13.2 to 32 mm and an average body length of 22.7 mm (N = 500; Withrow, 1988: 108, 199). Comparable in size to Ps. canadensis and Ps. erasus , usually larger than Ps. collinus and Ps. pinetorum .
Paranota and tergal sculpture ( Fig. 32 View Figure 32 ): Corners of paranota forming a trapezoid, with the anterior (AMC to ALC) edge longer than the posterior (PMC to PLC) edge. Ratio of anterior to posterior edge length larger than in Ps. erasus . Leading and distal margins moderately curved, similar to Ps. erasus but less curved than Ps.canadensis and Ps.collinus . Denticles moderate to obliterated. Trailing margin concave, moderately curved. Anterior and median blister rows subequal in thickness, AB and MB rows much thicker than PB row. Median blister 2 only slightly larger in area than MB1, individual PBs subequal in area. Central paranotal blisters occupying two-thirds of paranotal breadth. Lateral blisters anteriorly widening laterad.
Gonopod ( Figs 8 View Figure 8 , 33 View Figure 33 ): Gonocoxa ventral lobe with two gonocoxal plates stacked dorsoventrally ( Fig. 33A View Figure 33 ). Telopodite slender, kinked at pulvillus, strongly curved terminally. Pulvillus medium-sized, rounded, midway between base and terminus of acropodite. Processes e1, e3, m3 and m4 absent. Process e2 large, subtriangular, connected to m2 via prominent transverse ridge ( Fig. 8 View Figure 8 ); e4 small, surrounded by terminal bristles ( Fig. 33A View Figure 33 ). Process m1 medium-sized, medial of pulvillus; m2 large, subtriangular ( Fig. 33B View Figure 33 ).
Type notes
Polydesmus serratus (non vidi): Type material no longer extant. According to Hoffman (1999), Say collected millipedes on Assateague and Chincoteague Islands, off the eastern shore of Virginia. New collections from this area could serve as material to designate a neotype. In his description, Say noted that this species was found under the bark of Pinus variabilis (Aiton) Lamb. , now a synonym of Pinus echinata Mill. , shortleaf pine ( Govaerts, 2019).
Polydesmus pennsylvanicus (non vidi): Type material unknown, from ‘Pensylvanien’.
Polydesmus scopus (♂ HT, USNM, vidi): From Ledges State Park , Boone Co., IA, USA, collected 19 May 1941 by D. T. Jones . ♂ HT in fragments with one loose gonopod. Chamberlin (1942a) mentioned one female collected nearby but expressed doubt in its identity.
Polydesmus planicolens (♂ HT, USNM, vidi): From Ames, Story Co., IA, USA, collected spring 1941 by D. T. Jones . ♂ HT fragmented with gonopods in small vial, gnathochilarium dissected.
Distribution
Minnesota east to southern Quebec, south to northern South Carolina, west to east Texas. Absent from Georgia and peninsular Florida.
Additional specimens examined
FMNH INS 1413, 1416, 1423, 1436, 1441, 1443, 1452, 1453, 1454, 1495, 1513, 1514, 1517, 1559, 1572, 1576, 2817 *, 2818, 2819 *, 2820, 2821, 2823, 2827, 2828, 2829, 2832, 2833, 2835, 4814, 7103, 7104, 7109, 7185, 7207, 7312, 7316, 7348, 7363, 7366, 7373, 7384, 7390, 7490, 8238 *; VTEC MPE01173 * .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Pseudopolydesmus serratus
Sierwald, Petra, Hennen, Derek A, Zahnle, Xavier J, Ware, Stephanie & Marek, Paul E 2019 |
Pseudopolydesmus scopus
Chamberlin RV & Hoffman RL 1958: 71 |
Pseudopolydesmus planicolens
Chamberlin RV & Hoffman RL 1958: 71 |
Polydesmus scopus
Chamberlin RV 1942: 16 |
Polydesmus planicolens
Chamberlin RV 1942: 16 |
Pseudopolydesmus serratus
Shelley RM & Snyder 2012: 6 |
Hoffman RL 1999: 446 |
Withrow RP 1988: 103 |
Ramsey 1966: 339 |
Loomis HF 1959: 161 |
Chamberlin RV & Hoffman RL 1958: 71 |
Causey NB 1952: 6 |
Chamberlin RV 1951: 27 |
Chamberlin RV 1943: 18 |
Attems CMT 1940: 141 |
Shelley, 2000: 246 |
Pseudopolydesmus canadensis
Attems CMT 1940: 140 |
Verhoeff KW 1931: 305 |
Attems CMT 1898: 480 |
Polydesmus canadensis
Wood HC 1865: 216 |
Polydesmus pensylvanicus
Koch CL 1863: 18 |
Polydesmus pennsylvanicus C. L. Koch, 1847: 133
Koch CL 1847: 133 |
Polydesmus serratus
Williams SR & Hefner RA 1928: 112 |
Bollman CH 1887: 620 |
Peters WCH 1864: 539 |
de Saussure HLF 1860: 325 |
Gervais P 1847: 105 |
Say T 1821: 106 |