Chaudhripalpus costacola Beard and Seeman,

Beard, Jennifer J., Seeman, Owen D. & Bauchan, Gary R., 2014, Tenuipalpidae (Acari: Trombidiformes) from Casuarinaceae (Fagales), Zootaxa 3778 (1), pp. 1-157: 15-18

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-FFE8-FFCB-F387-FF3EFAB6F829

treatment provided by

Plazi

scientific name

Chaudhripalpus costacola Beard and Seeman
status

sp. nov.

Chaudhripalpus costacola Beard and Seeman  sp. nov.

( Figs 7–12)

Type material examined. Holotype female ex. Belah  Casuarina cristata  ( Casuarinaceae  ), AUSTRALIA: New South Wales, 86 km S Goondiwindi, approx. 15 km N Moree, Newell Highway, 29 ° 21 ’ 20 ” S 150 °00’ 24 ” E, 21 August 2007, coll. J.J. Beard (QM). Paratypes. 4 females, 2 pharate females, 2 pharate deutonymphs, 1 protonymph, and 1 larva, same data as holotype (QM, ANIC).

Non-type material examined. 8 females, 7 pharate females, 4 deutonymphs, 11 protonymphs, 3 pharate protonymphs, and 11 larvae ex. Ca. cristata  , AUSTRALIA: Queensland, 17 km west of Dalby on Moonie Highway, 27 ° 14 ’ 13 ” S 151 °08’ 52 ” E, 0 5 May 2007, coll. J.J. Beard and P.I. Forster (QM, USNM; BRI voucher PIF 32479View Materials); 8 females, 2 protonymphs, and 4 larvae ex same host, AUSTRALIA: Queensland, 45 km south of Hebel along Castlereagh Highway, near Lightning Ridge, 28 ° 44 ’ 43 ” S 148 °09’ 12 ” E, 0 6 May 2007, coll. J.J. Beard and P.I. Forster (QM; BRI voucher PIF 32488View Materials).

Diagnosis. Prodorsal shield with coarse, longitudinally lineate sculpturing. Dorsal opisthosomal cuticle with longitudinal striate sculpturing posteriorly; smooth cuticle between setae c 1 -d 1; longitudinal folding between setae d 1 -e 1; oblique folds and striate sculpturing laterally. Ventral setae ps 1–2 thin, barbed, seta ps 3 smooth. Trochanters I –IV 0- 0-1 -0 (v ′ absent on tr I –IV; l' present on tr III, added in protonymph). Spermathecal tube long, narrow, ca. 95 long before balloon-like membranous vesicle 4 long, 3 wide.

FEMALE (n = 21). Dorsum. ( Fig. 7) Body measurements: distance between setae v 2 -h 1 265–300 [300]; sc 2 - sc 2 91–93 [91]; other measurements: v 2 -v 2 38 –40 [38], sc 1 -sc 1 82–85 [83], c 1 -c 1 24–28 [28], c 3 -c 3 116–125 [125], d 1 -d 1 20–25 [25], d 3 -d 3 99–110 [108], e 1 - e 1 22–26 [23], e 3 - e 3 97–110 [110], f 3 -f 3 88–99 [99], h 1 -h 1 21– 24 [24], h 2 -h 2 63–74 [74]. Gnathosoma completely concealed beneath prodorsum. Anterior margin of prodorsum with 1 pair of blunt membranous triangular lobes originating from beneath prodorsal margin, notch formed between lobes 10–15 deep. Prodorsal shield weakly developed with coarse, longitudinal lineate pattern. Opisthosomal shield weakly developed with smooth cuticle medially, coarse, longitudinal-oblique lineate pattern laterally and posteriorly. Lateral cuticle surrounding shields weakly striated. All dorsal setae broadly lanceolate, barbed; medial opisthosomal setae shorter than lateral setae. Setal lengths: v 2 17–18 [18], sc 1 14–15 [15], sc 2 17– 20 [17], c 1 13–16 [16], c 3 18–19 [18], d 1 10–11 [10], d 3 16–19 [16], e 1 9 –10 [10], e 3 16 –18 [17], f 3 17–18 [18], h 1 12–13 [13], h 2 15–17 [17]. Palps. ( Fig. 8View FIGURE 8 a) Setal formula 0, 0, 0, 2 (1 s+ 1 e). Tarsal eupathidium 6 long; solenidion 7 long. Vent er. ( Fig. 8View FIGURE 8 b) Cuticle with fine transverse striae between setae 1 a - 3 a, longitudinal between setae 3 a - 4 a, transverse striae to midway between 4 a and ag, then longitudinal striae becoming coarse around genital area. Genital setae inserted in more-or-less transverse row, g 1 inserted slightly posterior to level of g 2. Genital area smooth, membranous, 20–25 [25] long, 35–40 [35] wide; anal setae ps 1–3 inserted medially on weakly defined anal plates in longitudinal line. Coxal setae 1 a, 1 b, 2 b, 2 c, 3 a, 3 b, 4 a, 4 b fine; setae g 1–2 lanceolate, setae ag 1, ps 1–2 narrowly lanceolate, barbed, ps 3 fine. Setal lengths: 1a 40 – 45 [broken], 1 b 20–25 [broken], 2 b 12–15 [12], 2 c 12–16 [13], 3a 25 – 40 [25], 3 b 12–15 [12], 4a 30 – 36 [35], 4 b 11–15 [15], ag 1 9–11 [9], g 1 9–11 [11], g 2 10 [10], ps 1 6–7 [7], ps 2 6–7 [7], ps 3 5–6 [6]. Spermatheca. ( Fig. 8View FIGURE 8 c) Spermathecal tube long, narrow, becoming convoluted distally, maximum width 1, ca. 95 long before balloon-like spermatheca 4 long, 3 wide. Genital opening just anterior to setae ps 3. Legs. ( Fig. 9View FIGURE 9) Setal formula for legs I –IV (coxae to tarsi) 1 - 0-3 - 0- 4 - 8 (1), 2 - 0-3 - 0-4 - 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 [9] long, ta II 8 [8] long) and 2 eupathidia pζ'-pζ" (6 long). Leg setation as in Table 1 except: cx I without 1 c; tr I –IV without v ′; ge I –III without l ′, ge I –II without d, l′′; ta I –IV without tc′′.

MALE. Unknown.

DEUTONYMPH (n = 5). Dorsum. ( Fig. 10View FIGURE 10) Body measurements: distance between setae v 2 -h 1 235–250, sc 2 - sc 2 90–96; other measurements: v 2 -v 2 25–29, sc 1 -sc 1 83–88, c 1 -c 1 22–25, c 3 -c 3 114–122, d 1 -d 1 20–23, d 3 -d 3 88–96, e 1 - e 1 18–20, e 3 - e 3 88–97, f 3 -f 3 79–85, h 1 -h 1 18–22, h 2 -h 2 48–56. Anterior prodorsal lobes not developed. Prodorsal shield smoothly rounded. Opisthosoma with setae c 1 on weak, irregular plate, d 1 on paired, weak, irregular platelets; otherwise coarse transverse striae between areas of smooth cuticle. Setal lengths: v 2 13–15, sc 1 13–15, sc 2 15–16, c 1 14–16, c 3 14–17, d 1 13–15, d 3 15–17, e 1 11 –13, e 3 12 –14, f 3 12–15, h 1 10, h 2 12–15. Palps. Palps similar to adult. Solenidion 4 long, eupathidium 4–5 long. Venter. ( Fig. 11View FIGURE 11 b) Cuticle with transverse striae becoming longitudinal posteriorly. Coxal setae fine. Setae ps 1–2 barbed, ps 3 smooth. Setal lengths: 1a 22 – 25, 1 b 12–13, 2 b 9–11, 2 c 10–13, 3 a 17–20, 3 b 9–10, 4 a 16–22, 4 b 8–10, ag 1 8–10, g 1 10–11, ps 1 4–5, ps 2 5, ps 3 5. Legs. Setal formula for legs I –IV same as adult. Tarsi I and II each with 1 antiaxial solenidion ω" (5 long) and 2 eupathidia pζ'-pζ" (5 long).

PROTONYMPH (n = 3). Dorsum. Body measurements: distance between setae v 2 -h 1 190–225, sc 2 -sc 2 81– 84; other measurements: v 2 -v 2 23–25, sc 1 -sc 1 68–70, c 1 -c 1 21–22, c 3 -c 3 110–113, d 1 -d 1 19–23, d 3 -d 3 82–85, e 1 - e 1 16–19, e 3 - e 3 76–79, f 3 -f 3 67–69, h 1 -h 1 17–25, h 2 -h 2 36–43. Anterior prodorsal lobes not developed. Prodorsal shield weakly developed, smooth. Opisthosoma with setae c 1 and d 1 on paired, weak, irregular platelets; otherwise sparse striae between areas of smooth cuticle. Setal length: v 2 12–15, sc 1 10–12, sc 2 14, c 1 15, c 3 14–16, d 1 10– 13, d 3 11–15, e 1 8 –10, e 3 13, f 3 11, h 1 7, h 2 9–11. Palps. Palps similar to adult. Solenidion 3–4 long, eupathidium 4 long. Venter. Cuticle with transverse striae becoming longitudinal posteriorly. Coxal setae fine. Setal lengths: 1a 25 – 30, 1 b 8–10, 2 b 8–10, 3 a 17–20, 3 b 6–9, ag 1 7–12, ps 1 3–4, ps 2 3–4, ps 3 3–4. 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" (4 long) and 2 eupathidia pζ'-pζ" (5, 4 – 5 long). Leg setation as in deutonymph except: seta 1 c absent; seta 4 b absent; tarsi IV without tc′′. Setae l' added to tr III.

LARVA (n = 16). Dorsum. ( Fig. 12View FIGURE 12) Body measurements: distance between setae v 2 -h 1 130–160, sc 2 -sc 2 64– 69; other measurements: v 2 -v 2 20–21, sc 1 -sc 1 55–60, c 1 -c 1 17–18, c 3 -c 3 87–96, d 1 -d 1 18–19, d 3 -d 3 58–61, e 1 - e 1 8–11, e 3 - e 3 46–57, f 3 -f 3 33–41, h 1 -h 1 8, h 2 -h 2 14–22. Anterior prodorsal lobes not developed. Prodorsal shield weakly developed, smooth. Opisthosoma without platelets, with coarse transverse wrinkled striae, becoming oblique posteriorly. Setal lengths: v 2 12–13, sc 1 7–8, sc 2 10–11, c 1 9–10, c 3 8–10, d 1 8–9, d 3 9–10, e 1 6 –8, e 3 9 – 11, f 3 9–10, h 1 5–6, h 2 9. Palps. Palps similar to adult except solenidion 3 long and eupathidium 5–6 long. Venter. ( Fig. 11View FIGURE 11 a) Cuticle with transverse striae becoming longitudinal posteriorly. Coxal setae fine. Setal lengths: 1a 16 – 21, 1 b 11–12, 3 a 14–23, ps 1 3–4, ps 2 3–4, ps 3 3–4. Legs. ( Fig. 12View FIGURE 12) 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 antiaxial solenidion ω" (3 long) and 2 eupathidia pζ'-pζ" (4 long). Leg setation as in protonymph except: seta 2 b absent; seta 3 b absent; tr I –III nude; tarsi I –III without seta tc ′.

Hosts and distribution. This species was collected from Belah  , Ca. cristata  from northwestern New South Wales and southwestern Queensland.

Etymology. The specific name is derived from costa (rib) and cola (dweller), alluding to the habit of these mites to lodge in between the ribs on stems of she-oaks.

Remarks. This species was a darkish matt red colour in life and was found on the stems, with Pentamerismus sititoris  and Philippipalpus belah  .

Chaudhripalpus costacola  can be separated from Ch. creelae  by the absence of v' on trochanters I –IV (present on tr I –II in Ch. creelae  ) and the presence of narrow setiform setae ps 1–2 (broadly lanceolate in Ch. creelae  ).

ANIC

Australian National Insect Collection

USNM

Smithsonian Institution, National Museum of Natural History

BRI

Queensland Herbarium