Magdalenapalpus strandtmanni ( Smiley, Frost and Gerson, 1996 ),

Beard, Jennifer J., Seeman, Owen D. & Bauchan, Gary R., 2014, Tenuipalpidae (Acari: Trombidiformes) from Casuarinaceae (Fagales), Zootaxa 3778 (1), pp. 1-157: 51-55

publication ID

http://dx.doi.org/10.11646/zootaxa.3778.1.1

publication LSID

lsid:zoobank.org:pub:20D5DCD9-17F5-4863-B627-42B7C349B9A7

persistent identifier

http://treatment.plazi.org/id/194C87D0-FFD4-FFED-F387-FB9FFCBFFF57

treatment provided by

Plazi

scientific name

Magdalenapalpus strandtmanni ( Smiley, Frost and Gerson, 1996 )
status

 

Magdalenapalpus strandtmanni ( Smiley, Frost and Gerson, 1996) 

( Figs 38–41View FIGURE 38View FIGURE 39View FIGURE 40View FIGURE 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 February 1996 (on slide with 1 female, 1 deutonymph Chaudhripalpus creelae  ) ( WINC).

Diagnosis. Dorsal opisthosomal setae f 2 present. Dorsal setae all broadly lanceolate, strongly barbed, subequal in length. Posterior opisthosomal venter with setae fine, barbed, except setae ps 1 thickened, heavily barbed.

FEMALE (n = 9). Dorsum. ( Fig. 38View FIGURE 38) Body measurements: distance between setae v 2 -h 1 230–250 in 8 paratypes [230]; sc 2 -sc 2 86–96 [86]; other measurements: v 2 -v 2 36 –43 [42], sc 1 -sc 1 78–84 [81], c 1 -c 1 31–39 [31], c 2 -c 2 87–96 [87], c 3 -c 3 125–140 [125], d 1 -d 1 22–27 [22], d 2 -d 2 73–96 [73], d 3 -d 3 105–120 [105], e 1 - e 1 21–26 [24], e 2 - e 2 71–92 [74], e 3 - e 3 93–105 [95], f 2 -f 2 62–73 [65], f 3 -f 3 72–86 [72], h 1 -h 1 21–27 [27], h 2 -h 2 49–57 [57]. Gnathosoma almost completely concealed beneath prodorsum ( Fig. 38View FIGURE 38). Anterior margin of prodorsum with notch between setae v 2, 8–15 [13] deep; setae v 2 inserted on anterior lobes formed by notch ( Fig. 38View FIGURE 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 e 1 -e 1 and h 1 -h 1. 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. 38View FIGURE 38) Setal formula 0, 0, 0, 2, 3 (1 s+ 2 e). 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. 39View FIGURE 39) Ventral cuticle with longitudinal striae between 1 a - 1 a; with transverse striae between 1 a to just posterior to setae 4 a, 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, g 1 inserted slightly posterior to level of g 2. Genital shield not developed, cuticle on genital flap smooth; setae ps 1–2 inserted in longitudinal line along inner edge of anal plates. Coxal, genital and anal setae ps 2–3 fine; setae ps 1 heavily barbed; setae 1 a, 3 a, 4 a long, finely tapered, often broken and difficult to determine full length. Setal lengths: 1a 30 – 47 [31, 38], 1 b 18–26 [19, 21], 2 b 14–22 [17], 2 c 15–27 [19], 3a 31 – 45 [not visible], 3 b 16–22 [21], 4a 30 – 37 [not visible], 4 b 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. 40View FIGURE 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 1 c; 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 v 2 -h 1 198–219, sc 2 -sc 2 75–82; other measurements: v 2 -v 2 27–33, sc 1 -sc 1 67–75, c 1 -c 1 28–33, c 2 -c 2 75–76, c 3 -c 3 115–120, d 1 -d 1 23–30, d 2 -d 2 58–65, d 3 -d 3 94–101, e 1 - e 1 18–21, e 2 - e 2 63–72, e 3 - e 3 81–89, f 3 -f 3 44–54, h 1 -h 1 65–71, h 2 -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 1 a with longitudinal striae; 1 a- 4 a with transverse striae; between 4 a- 4 a with mixed striae; immediately posterior 4 a 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 v 2 -h 1 145–180, sc 2 -sc 2 68–73; other measurements: v 2 -v 2 25–29, sc 1 -sc 1 62–66, c 1 -c 1 24–28, c 2 -c 2 68–72, c 3 -c 3 100–110, d 1 -d 1 20–25, d 2 -d 2 51–57, d 3 -d 3 81–86, e 1 - e 1 12–19, e 2 - e 2 53–66, e 3 - e 3 65–69, f 2 -f 2 44–59, f 3 -f 3 46–51, h 1 -h 1 13–29, h 2 -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 1 a with longitudinal striae; 1 a 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, ps 1 7–8, ps 2 7–8, ps 3 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 2 c, 4 b absent; genu I –II without d; tarsi IV without tc ′. Setae l' added to tr III.

LARVA (2 paratypes). Dorsum. ( Fig. 41View FIGURE 41 a) Body measurements: distance between setae v 2 -h 1 130–140, sc 2 - sc 2 61–63; other measurements: v 2 -v 2 21–23, sc 1 -sc 1 51–53, c 1 -c 1 21–23, c 2 -c 2 57–59, c 3 -c 3 92–95, d 1 -d 1 12– 15, d 2 -d 2 43–48, d 3 -d 3 67–69, e 1 - e 1 8–9, e 2 - e 2 45–48, e 3 - e 3 51–53, f 2 -f 2 34–37, f 3 -f 3 29–37, h 1 -h 1 9–11, h 2 -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 1 a with longitudinal striae; 1 a 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, ps 1 5, ps 2 5, ps 3 5. Legs. ( Fig. 41View FIGURE 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 2 b absent; seta 3 b 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 4 a was absent, but it is present. Magdalenapalpus strandtmanni  differs from the new species presented here by the presence of dorsal opisthosomal setae f 2 (absent in M. caperatus  and M. forsteri  ).

WINC

Waite Insect and Nematode Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Arachnida

Order

Prostigmata

Family

Tenuipalpidae

Genus

Magdalenapalpus

Loc

Magdalenapalpus strandtmanni ( Smiley, Frost and Gerson, 1996 )

Beard, Jennifer J., Seeman, Owen D. & Bauchan, Gary R. 2014
2014
Loc

Meyeraepalpus strandtmanni

Mesa 2009: 61
Smiley 1996: 178
1996