Magdalenapalpus strandtmanni Smiley, Frost and Gerson 1996
Creators: name: Beard, Jennifer J.
name: Seeman, Owen D.
name: Bauchan, Gary R.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Tenuipalpidae
Magdalenapalpus
Magdalenapalpus strandtmanni

description: Magdalenapalpus strandtmanni (Smiley, Frost and Gerson, 1996)
(Figs 38–41)
Meyeraepalpus strandtmanni Smiley, Frost and Gerson, 1996: 178, fig. 26. Magdalenapalpus strandtmanni, Mesa et al. 2009: 61, fig. 35.
Type material examined. Holotype female ex. Bull-Oak Allocasuarina luehmannii (Casuarinaceae) [feeding on bark of branchlets], AUSTRALIA: South Australia, 16 km E Mt Mary, 16 December 1995, coll. W. Frost (WINC; on same slide as paratype female and 1 deutonymph). Paratypes. 1 female, 1 deutonymph, same slide as holotype (WINC); 1 female, 1 larva, same data as holotype except 28 February 1996 (1 slide); 1 deutonymph, 3 protonymphs, same data as holotype (1 slide, with 1 female Chaudhripalpus creelae); 2 females, 1 deutonymph, 1 pharate protonymph, same data as holotype (1 slide); 2 females, 2 deutonymphs, 1 pharate deutonymph, 2 protonymphs, 1 larva, same data as holotype (1 slide); 1 female, same data as holotype except 28 February 1996 (on slide with 1 female Chaudhripalpus creelae); 1 female, same data as holotype except 28 February1996 (on slide with 1 female, 1 deutonymph Chaudhripalpus creelae) (WINC).
Diagnosis. Dorsal opisthosomal setae f2 present. Dorsal setae all broadly lanceolate, strongly barbed, subequal in length. Posterior opisthosomal venter with setae fine, barbed, except setae ps1 thickened, heavily barbed.
FEMALE (n = 9). Dorsum. (Fig. 38) Body measurements: distance between setae v2 -h1 230–250 in 8 paratypes [230]; sc2-sc2 86–96 [86]; other measurements: v2-v2 36 –43 [42], sc1-sc1 78–84 [81], c1-c 1 31–39 [31], c2-c2 87–96 [87], c3-c3 125–140 [125], d1-d 1 22–27 [22], d2-d2 73–96 [73], d3-d3 105–120 [105], e1- e 1 21–26 [24], e2- e2 71–92 [74], e3- e3 93–105 [95], f2-f2 62–73[65], f3-f3 72–86 [72], h1-h 1 21–27 [27], h2-h2 49–57 [57]. Gnathosoma almost completely concealed beneath prodorsum (Fig. 38). Anterior margin of prodorsum with notch between setae v2, 8–15 [13] deep; setae v2 inserted on anterior lobes formed by notch (Fig. 38). Prodorsal shield weakly developed with weak oblique folds and lines. Opisthosomal shield weakly developed, mostly with weak transverse folds and lines, becoming longitudinal between e1-e1 and h1-h1. Dorsal setae broadly lanceolate and strongly barbed, subequal in length; Setal lengths: v 2 23–30 [28], sc 1 22–27 [25], sc 2 24–29 [28], c 1 26–31 [27, 31], c 2 27–32 [29, 31], c 3 21–24 [22, 24], d 1 21–25 [23], d 2 22–27 [24, 26], d 3 19–26 [24, 26], e 1 19 –27 [24, 27], e 2 22 –28 [26, 28], e 3 22 –27 [27], f 3 23–29 [29], h 1 19–28 [28], h 2 23–31 [25, 28]. Palps. (Fig. 38) Setal formula 0, 0, 0, 2, 3 (1s+2e). Tibial setae, dorsal 7–11 [7] long, ventral 7–10 [7] long; tarsal eupathidia 6–7 [6] long (thin, tapered), 7–8 [7] long (thick, blunt); solenidion 6–7 [6, 7] long. Venter. (Fig. 39) Ventral cuticle with longitudinal striae between 1a -1a; with transverse striae between 1a to just posterior to setae 4a, becoming longitudinal to ag; striae between ag -ag mixed, with transverse striae on anterior of genital flap; longitudinal striae laterad genital region. Genital setae inserted on posterior corners of genital flap in more-or-less transverse row, g1 inserted slightly posterior to level of g2. Genital shield not developed, cuticle on genital flap smooth; setae ps1–2 inserted in longitudinal line along inner edge of anal plates. Coxal, genital and anal setae ps2–3 fine; setae ps1 heavily barbed; setae 1a, 3a, 4a long, finely tapered, often broken and difficult to determine full length. Setal lengths: 1a 30–47 [31, 38], 1b 18–26 [19, 21], 2b 14–22 [17], 2c 15–27 [19], 3a 31–45 [not visible], 3b 16–22 [21], 4a 30–37 [not visible], 4b 18–21 [21], ag 1 19–24 [19], g 1 18–24 [21], g 2 18–24 [22], ps 1 15–18 [16], ps 2 15–20 [16], ps 3 12–20 [12]. Spermatheca. Not visible. Legs. (Fig. 40) Setal formula for legs I–IV (coxae to tarsi) 1-0-3-1-4-8(1), 2-0-3-1- 4-8(1), 1-1-2-0-3-4, 1-0-1-0-3-4. Tarsi I and II each with 1 antiaxial solenidion ω" (ta I 9-11 [10] long, ta II 8-11 [10] long) and 2 eupathidia pζ'-pζ" (ta I 6–8 [7–8] long, 6–7 [7] long; ta II with both 6–7 [7] long). Leg setation as in Table 1 except: coxae I without 1c; trochanters I–IV 0-0-1-0 (v ′ absent on tr I–IV; l' present on tr IV); ge I–IV 1- 1 -0-0 (d present ge I–II); ta I–IV without tc′′.
MALE. Unknown.
DEUTONYMPH (6 paratypes). Dorsum. Body measurements: distance between setae v2 -h1 198–219, sc2-sc2 75–82; other measurements: v2-v 2 27–33, sc1-sc1 67–75, c1-c 1 28–33, c2-c2 75–76, c3-c3 115–120, d1-d 1 23–30, d2-d2 58–65, d3-d3 94–101, e1- e 1 18–21, e2- e2 63–72, e3- e3 81–89, f3-f3 44–54, h1-h1 65–71, h2-h 2 21–23. Gnathosoma not concealed by prodorsum. Prodorsal shield similar to female, but with fewer folds; opisthosomal shield weak, with some weak transverse folds. Setal lengths: v 2 27–32, sc 1 22–25, sc 2 24–27, c 1 25–28, c 2 26–28, c 3 21–23, d 1 20–23, d 2 20–25, d 3 21–24, e 1 19 –24, e 2 21 –23, e 3 21 –26, f 2 20–27, f 3 20–26, h 1 18–22, h 2 19–24. Palps. Palps same as adult. Tibial setae, dorsal 9–10 long, ventral 7–8 long; tarsal eupathidia 5 long (thin, tapered), 6 long (thick, blunt); solenidion 5–6 long. Venter. Cuticle on gnathosoma to 1a with longitudinal striae; 1a-4a with transverse striae; between 4a-4a with mixed striae; immediately posterior 4a with transverse striae, becoming longitudinal to ag; longitudinal striae around genital-anal region. Setal lengths: 1a 30–38, 1 b 13–16, 2 b 13–20, 2 c 14–20, 3 a 28–31, 3 b 12–14, 4 a 23–28, 4 b 12–14, ag 1 12–14, g 1 12–16, ps 1 8–10, ps 2 10–12, ps 3 10–12. Legs. Setal formula for legs I–IV same as adult female. Tarsi I and II each with 1 antiaxial solenidion ω" (ta I 5 long, ta II 4–5 long) and 2 eupathidia pζ'-pζ" (ta I 6, 5–6 long; ta II with both 5 long).
PROTONYMPH (6 paratypes). Dorsum. Body measurements: distance between setae v2 -h1 145–180, sc2-sc2 68–73; other measurements: v2-v 2 25–29, sc1-sc1 62–66, c1-c 1 24–28, c2-c2 68–72, c3-c3 100–110, d1-d 1 20–25, d2-d2 51–57, d3-d3 81–86, e1- e 1 12–19, e2- e2 53–66, e3- e3 65–69, f2-f2 44–59, f3-f3 46–51, h1-h 1 13–29, h2-h 2 19–33. Gnathosoma not concealed by prodorsum. Setal lengths: v 2 25–28, sc 1 17–22, sc 2 18–24, c 1 21–23, c 2 19– 23, c 3 15–18, d 1 19–21, d 2 16–22, d 3 17–20, e 1 17 –21, e 2 16 –19, e 3 17 –20, f 2 16–19, f 3 14–19, h 1 15–20, h 2 15– 20. Palps. Palps same as adult. Tibial setae, dorsal 8–9 long, ventral 6–7 long; tarsal eupathidia 4–5, 5–6 long; solenidion 3–4 long. Venter. Cuticle on gnathosoma to 1a with longitudinal striae; 1a to leg IV with transverse striae; leg IV to posterior margin with longitudinal striae. Coxal, genital and anal setae fine. Setal lengths: 1a 24– 29, 1 b 13–16, 2 b 12–18, 3 b 21–28, ag 12–20, ps1 7–8, ps2 7–8, ps3 7–8. Legs. Setal formula for legs I–IV (coxae to tarsi) 1-0-3-0-4-8(1), 1-0-3-0-4-8(1), 1-1-2-0-3-4, 0-0-1-0-3-3. Tarsi I and II each with 1 antiaxial solenidion ω" (3–4 long) and 2 eupathidia pζ'-pζ" (5 long). Leg setation as in deutonymph except: seta 2c, 4b absent; genu I–II without d; tarsi IV without tc ′. Setae l' added to tr III.
LARVA (2 paratypes). Dorsum. (Fig. 41 a) Body measurements: distance between setae v2 -h1 130–140, sc2- sc2 61–63; other measurements: v2-v 2 21–23, sc1-sc1 51–53, c1-c 1 21–23, c2-c2 57–59, c3-c3 92–95, d1-d 1 12– 15, d2-d2 43–48, d3-d3 67–69, e1- e1 8–9, e2- e2 45–48, e3- e3 51–53, f2-f2 34–37, f3-f 3 29–37, h1-h 1 9–11, h2-h 2 16–20. Gnathosoma not concealed by prodorsum. Setal lengths: v 2 22–24, sc 1 17–18, sc 2 16–19, c 1 19–21, c 2 17– 19, c 3 12–14, d 1 15–16, d 2 14–16, d 3 12–13, e 1 16 –17, e 2 13 –14, e 3 12 –13, f 2 13–14, f 3 11–14, h 1 13–14, h 2 13– 14. Palps. Palps same as adult. Tibial setae, dorsal 6–8 long, ventral 7 long; tarsal eupathidia 4, 5 long; solenidion 3 long. Venter. Cuticle on gnathosoma to 1a with longitudinal striae; 1a to leg IV with transverse striae; leg IV to posterior margin with some longitudinal striae. All setae fine. Setal lengths: 1a 25–33, 1 b 12–14, 3 a 26–27, ps1 5, ps2 5, ps3 5. Legs. (Fig. 41 b, c) Setal formula for legs I–III (coxae to tarsi) 1-0-3-0-4-7(1), 0-0-3-0-4-7(1), 0-0-2-0- 3-3. Tarsi I and II each with 1 bulbous antiaxial solenidion ω" (ta I 3 long, ta II 2–3 long) and 2 eupathidia pζ'-pζ" (5 long). Leg setation as in protonymph except: seta 2b absent; seta 3b absent; tr I–III nude; ta I–III without seta tc ′.
Remarks. In our specimens, leg setae counts are markedly different to those presented by Smiley et al. (1996), who reported that coxa I had two setae (only one seta is present), the trochanters had 1-1-2-1 (our count 0-0-1-0, i.e. l ′ present on only tr III, v ′ absent on tr I–IV), the genua had 3-3-1-0 (our count 1-1-0-0), and the tarsi had 7(1)- 7(1)-5-5 (our count 8(1)-8(1)-4-4). They also reported that seta 4a was absent, but it is present. Magdalenapalpus strandtmanni differs from the new species presented here by the presence of dorsal opisthosomal setae f2 (absent in M. caperatus and M. forsteri).
description: Published as part of Beard, Jennifer J., Seeman, Owen D. & Bauchan, Gary R., 2014, Tenuipalpidae (Acari: Trombidiformes) from Casuarinaceae (Fagales), pp. 1-157 in Zootaxa 3778 (1) on pages 51-55, DOI: 10.11646/zootaxa.3778.1.1, http://zenodo.org/record/251337