Pseudopolydesmus serratus, SERRATUS (SAY, 1821)

Sierwald, Petra, Hennen, Derek A, Zahnle, Xavier J, Ware, Stephanie & Marek, Paul E, 2019, Taxonomic synthesis of the eastern North American millipede genus Pseudopolydesmus (Diplopoda: Polydesmida: Polydesmidae), utilizing high-detail ultraviolet fluorescence imaging, Zoological Journal of the Linnean Society 187 (1), pp. 117-142 : 138-140

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

 

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 * .

USNM

Smithsonian Institution, National Museum of Natural History

FMNH

Field Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Diplopoda

Order

Polydesmida

Family

Polydesmidae

Genus

Pseudopolydesmus

Loc

Pseudopolydesmus serratus

Sierwald, Petra, Hennen, Derek A, Zahnle, Xavier J, Ware, Stephanie & Marek, Paul E 2019
2019
Loc

Pseudopolydesmus scopus

Chamberlin RV & Hoffman RL 1958: 71
1958
Loc

Pseudopolydesmus planicolens

Chamberlin RV & Hoffman RL 1958: 71
1958
Loc

Polydesmus scopus

Chamberlin RV 1942: 16
1942
Loc

Polydesmus planicolens

Chamberlin RV 1942: 16
1942
Loc

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
1940
Loc

Pseudopolydesmus canadensis

Attems CMT 1940: 140
Verhoeff KW 1931: 305
Attems CMT 1898: 480
1898
Loc

Polydesmus canadensis

Wood HC 1865: 216
1865
Loc

Polydesmus pensylvanicus

Koch CL 1863: 18
1863
Loc

Polydesmus pennsylvanicus C. L. Koch, 1847: 133

Koch CL 1847: 133
1847
Loc

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
1821
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