Pseudopolydesmus pinetorum, PINETORUM (BOLLMAN, 1888)

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 : 132-135

publication ID

https://doi.org/ 10.1093/zoolinnean/zlz020

DOI

https://doi.org/10.5281/zenodo.5718985

persistent identifier

https://treatment.plazi.org/id/03E1C602-FFCB-FFE8-FCE3-FAC247B63B40

treatment provided by

Carolina

scientific name

Pseudopolydesmus pinetorum
status

 

PSEUDOPOLYDESMUS PINETORUM ( BOLLMAN, 1888) View in CoL

( FIGS 17–20 View Figure 17 View Figure 18 View Figure 19 View Figure 20 )

Polydesmus pinetorum Bollman, 1888: 3 View in CoL , ♂ HT (USNM, non vidi, type lost).

Pseudopolydesmus pinetorum View in CoL – Causey, 1952: 6, fig. 5 (= Po. americanus View in CoL ; Po. paroicus View in CoL ; Po. hubricthi ; Po. modocus ). – Chamberlin & Hoffman, 1958: 70. – [ Withrow, 1988: 72, figs 74, 80, 82, 86, 90, 106, 111, 122–128, map 4, tables 9–11.] – Hoffman, 1999: 445.

Polydesmus americanus Carl, 1902: 611 View in CoL , pl. 11: fig. 37, two ♂ ST (MHNG, non vidi).

Pseudopolydesmus americanus View in CoL – Attems, 1940: 140, fig. 202. – Carl, 1941: 292, figs 1–2.

Polydesmus natchitoches Chamberlin, 1942b: 10 View in CoL , figs 34, 35, ♂ HT (USNM, vidi), synon. nov.

Pseudopolydesmus natchitoches View in CoL – Chamberlin & Hoffman, 1958: 70. – Hoffman, 1999: 445.

Polydesmus paroicus Chamberlin, 1942b: 11 View in CoL , figs 37, 38, five ♂ / ♀ ST (USNM, vidi).

Pseudopolydesmus paroicus View in CoL – Chamberlin, 1943c: 18. – Chamberlin & Hoffman, 1958: 70. – Hoffman, 1999; 445.

Polydesmus hubrichti Chamberlin, 1943a: 15 View in CoL , figs 1, 2, ♂ HT (USNM, vidi).

Pseudopolydesmus hubrichti View in CoL – Chamberlin, 1943c: 18.

Polydesmus modocus Chamberlin, 1943b: 36 View in CoL , fig. 6, ♂ HT (FMNH INS927, vidi). – Sierwald et al., 2005: 40.

Pseudopolydesmus modocus – Chamberlin, 1943c: 18.

Diagnosis

Size: Medium, with body length ranging from 13.6 to 25.6 mm and an average body length of 18.6 mm (N = 212; Withrow, 1988: 76, 199). Usually smaller than Ps. canadensis , Ps. collinus , Ps. erasus and Ps. serratus . Clearly larger than its small sympatric congeners Ps. minor and Ps. caddo .

Paranota and tergal sculpture ( Fig. 17 View Figure 17 ): Corners of paranota forming a broad rectangle, nearer to a square than any other Pseudopolydesmus species. Leading and distal margins weakly curved compared with Ps. erasus and Ps. serratus , denticles always distinct. Trailing margin concave, strongly curved. Anterior blister row much thicker than median and posterior blister rows, which are subequal in thickness. Median blister 2 and PB2 subequal in area and much larger than MB1 and PB1. Central paranotal blisters large, occupying over two-thirds of paranotal breadth, as wide as long. Lateral blisters anteriorly widening laterad.

Gonopod ( Figs 18–20 View Figure 18 View Figure 19 View Figure 20 ): Gonocoxa ventral lobe with single gonocoxal plate. Telopodite entirely arcuate and fishhook-shaped, section distal of pulvillus tightly curved. Pulvillus large, rounded, closer to terminus of acropodite than base. Processes e1, m3 absent. Process e2 lobe-like, recurved, separate from e3; process e3 very large, subtriangular to spike-shaped; process e4 small and laminate, proximal to terminal tuft of bristles ( Figs 18A View Figure 18 , 19A View Figure 19 , 20A View Figure 20 ). Process m1 small, hidden at base of pulvillus; m2 small, subtriangular; m4 mediumsized, subtriangular, close to m2 ( Figs 18B View Figure 18 , 19B View Figure 19 , 20B View Figure 20 ).

Type notes

Polydesmus pinetorum (♂ HT, USNM, non vidi, type lost): From Little Rock, Pulaski Co., AR, USA . Bollman (1888) mentions additional specimens from Clark, Pike and Sevier Cos in Arkansas. Apparently, Withrow examined the ♂ HT at USNM; no type material was found there (Sierwald, November 2015).

Polydesmus americanus : (two ♂ ST, MHNG, non vidi): From Texas, without further locality .

Polydesmus natchitoches (four ♂ / ♀ ST, USNM, vidi; one ♂ ST, USNM, non vidi): Chamberlin (1942b) described four ST from two miles south of Saline , collected 12 April 1936 , and one ♂ ST from four miles north of Chestnut , collected 14 April 1936. All collected by L. Hubricht. Both localities are in Natchitoches Par., LA, USA . One type lot found, from the Saline locality: labelled ‘= pinetorum ’ by Withrow, contains genitalia vial with two intact male gonopods and three or four fragmented male and female specimens, including one female with vulvae everted. Specimens sorted into three vials. Vial 1 contains one fragmented male with gonopods missing and genitalia vial containing two gonopods (most probably not from the same male). Vial 2 contains two fragmented females, one with everted vulvae. Vial 3 contains several specimen fragments. ♂ ST from Chestnut locality not found.

Polydesmus paroicus (three ♂ and two ♀ ST, USNM, vidi): From 1.5 miles north of Clay , boundary of Lincoln and Jackson Parishes, LA, USA, collected 12 April 1936 by L. Hubricht . One type lot: contains two fragmented females, two fragmented males with gonopods in situ, one male with dissected gonopods but intact body ring 7, and one genitalia vial with fragments of body ring 7 and at least one gonopod, most probably not belonging to the male in this vial.

Polydesmus hubrichti (♂ HT and 13 ♂ PT, USNM, v i d i): C h a m b e r l i n (1 9 4 3a) d e s c r i b e d ♂ H T, ♀ allotype, and approximately ten additional ♂/♀ PT from University City, St. Louis Co., MO, USA, collected 29 March 1936 by L. Hubricht . We found one type lot and two additional lots; all labelled with the nomenclaturally invalid manuscript name ‘ Polydesmus scholasticus ’ by Chamberlin, labelled ‘ P. serratus ’ by Hubricht. Type lot: labelled ‘Types’, contains ≥ 14 specimens: male labelled ‘Lectotype’ with one dissected gonopod in a genitalia vial and 13 adult males, most with intact gonopods in situ. Non-type lot 1: labelled ‘Paratype’, contains a single female collected March 1936 under logs, from 4.3 miles northwest of Glencoe Station, St. Louis Co., MO, USA. Non-type lot 2: labelled ‘Paratypes’, collected 8 March 1936, from Creve Coeur Lake Park, St. Louis Co., MO, USA, containing seven specimens belonging to three species: two males of Ps. pinetorum (both with gonopods in situ, one with a single intact gonopod), two females of Ps. pinetorum , two males of Ps. minor (gonopods intact in situ) and one female Ps. serratus (with everted vulva). Despite labelling three lots as types (for Po. scholasticus ), Chamberlin (1943a) explicitly designated only the material from University City (vial labelled ‘Types’) in the Po. hubrichti type series.

Polydesmus modocus (♂ HT, FMNH, vidi): From between Modoc and Roots, Randolph Co., IL, USA, collected 14 April 1936 by K. P. Schmidt . ♂ HT in fragments, single gonopod in genitalia vial, images are available online at https://collections-zoology. fieldmuseum.org/catalogue/955981, last accessed 25/3/2019 ( FMNH INS 927).

Distribution

Louisiana north to southern Iowa, east through Alabama and Tennessee. Most commonly collected west of the Mississippi River.

Additional specimens examined

FMNH INS 1435, 1438 , 1445 * .

USNM

Smithsonian Institution, National Museum of Natural History

MHNG

Museum d'Histoire Naturelle

FMNH

Field Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Diplopoda

Order

Polydesmida

Family

Polydesmidae

Genus

Pseudopolydesmus

Loc

Pseudopolydesmus pinetorum

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

Pseudopolydesmus natchitoches

Hoffman RL 1999: 445
Chamberlin RV & Hoffman RL 1958: 70
1958
Loc

Pseudopolydesmus pinetorum

Hoffman RL 1999: 445
Withrow RP 1988: 72
Chamberlin RV & Hoffman RL 1958: 70
Causey NB 1952: 6
1952
Loc

Pseudopolydesmus paroicus

Chamberlin RV & Hoffman RL 1958: 70
Chamberlin RV 1943: 18
1943
Loc

Polydesmus hubrichti

Chamberlin RV 1943: 15
1943
Loc

Pseudopolydesmus hubrichti

Chamberlin RV 1943: 18
1943
Loc

Polydesmus modocus

Sierwald P & Bond JE & Gurda GT 2005: 40
Chamberlin RV 1943: 36
1943
Loc

Pseudopolydesmus modocus

Chamberlin RV 1943: 18
1943
Loc

Polydesmus natchitoches

Chamberlin RV 1942: 10
1942
Loc

Polydesmus paroicus

Chamberlin RV 1942: 11
1942
Loc

Pseudopolydesmus americanus

Carl J 1941: 292
Attems CMT 1940: 140
1940
Loc

Polydesmus americanus

Carl J 1902: 611
1902
Loc

Polydesmus pinetorum

Bollman CH 1888: 3
1888
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