Inglacarus jonesi, Beard & Seeman, 2025

Beard, Jennifer J. & Seeman, Owen D., 2025, Two new genera and six new species of flat mites (Prostigmata: Tenuipalpidae) from Goodeniaceae (Asterales) in Australia, Zootaxa 5637 (2), pp. 201-259 : 250-254

Inglacarus jonesi sp. nov. Beard & Seeman

( Figs 43–45 )

Types. Holotype. Female, Australia, Wondul Stock Route, 36 km north of Inglewood , Queensland, 28°05’59’’S 151°04’26”E, ex. Goodenia glabra ( Goodeniaceae ), 10.xii.2001, J.J. Beard and P.I. Forster ( UQIC87350 ; 2 paratypes on same slide) . Paratypes. 5 females, same data as holotype ( UQIC87347–87350 ). All material in QM .

Diagnosis. Female. Dorsal ornamentation rugose-reticulate medially, becoming weaker to smooth laterally; dorsal setae short, length 3–6. Setae g1 positioned posterior to g2. Seta ps2 slender, tapered to fine tip, ps3 tapered to blunt tip. Blunt setae on femora-tibiae: femur I d, l′; femur II d, l′, bv″; femur III d; genu I–II d, l′, l″; tibia I–II d, l″; tibia III–IV d. All blunt setae appear smooth.

Description

Adult female. (6 measured)

Dorsum. ( Fig. 43 ) Body measurements: v2–h1 195–221 [217], sc2–sc2 111–128 [128], c3–c3 118–130 [126], f3–f3 75–80 [77]. Prodorsal and opisthosomal shields weakly developed; prodorsum mostly reticulate to rugose; anterior margin of prodorsum smoothly rounded without median forked projection or notch; with up to 3 pairs of minute pores sublaterally (can be difficult to see). Opisthosoma with rugose reticulation over large central region, becoming weaker posteriorly and mostly smooth at lateral margins; with 3 pairs of large pores—mesad c3, mesad d3, posteromesad d3; with at least 2 pairs of minute pores (can be difficult to see). Dorsal setae all short, smooth, blunt. Setal measurements: v2 4–6 [5–6], sc1 5–6 [5–6], sc2 4–6 [4–5], c1 5 [5], c3 4–5 [4–5], d1 4–5 [4–5], d3 4–5 [4–5], e3 4 –5 [4], f3 4–5 [4–5], h1 3–5 [4], h2 4–5 [4–5].

Infracapitulum. ( Figs 43 , 44 ) Dorsal cuticle with fine longitudinal striae; ventral cuticle smooth centrally with fine oblique striae laterally; infracapitular setae m (10–13) [11]. Palps one segmented, with single distal seta (11–14) [12–14].

Venter. ( Fig. 44 ) Ventral cuticle with various patterns of fine to strong plicae; with few fine longitudinal plicae between setae 1b–1a and longitudinal to oblique plicae on coxae I–II; with widely spaced transverse plicae between setae 1a to just posterior to 3a; with small region broadly V-shaped plicae anterior to 4a–4a; with fine arching plicae between 4a–ag; genital region flanked by widely spaced longitudinal plicae. Setae g1 inserted just posterior to g2 on genital flap. Most ventral setae short, fine, apparently smooth, tapered; except setae 1a elongate, fine (often broken), and seta l′ on tr III short, blunt. Setal measurements: 1a 68–76 [68–70], 1b 14–19 [19], 1c 13–18 [16], 2b 11–18 [14], 2c 14–17 [14–15], 3a 12–16 [15–16], 3b 13–16 [16], 4a 14–19 [14–15], 4b 11–13 [11], ag 9–14 [13], g1 9–11 [10–11], g2 9–11 [10–11], ps2 7–9 [8–9], ps3 6–7 [6–7].

Spermathecal apparatus. ( Fig. 45B ) A moderately short membranous duct terminating in small bulb; basal half much broader than distal half, with a slightly enlarged bulb midway, and granulate texture basally.

Legs. ( Fig. 45A ) Setal formulae for legs I – IV: cx 2-2-1-1, tr 1-1-2-1, fe 4-4-2-1, ge 3-3-0-0, ti 5-5-3-3, ta 9(1)- 9(1)-5-5 respectively. Leg chaetotaxy for legs I – IV: cx I 1b, 1c; cx II 2b, 2c; cx III 3c; cx IV 4b; tr I–II IV v′, tr III l′, v′; fe I–II d, l′, v′, bvʺ; fe III d, ev′, fe IV ev′; ge I–II d, l′, lʺ, ge III–IV nude; ti I–II d, l′, lʺ, v′, vʺ; ti III–IV d, v′, vʺ; ta I–II ftʺ, tc′, p′ζ, pʺζ, u′, uʺ, ωʺ; ta III–IV ft′, tc′, tcʺ, u′, uʺ. Tarsi I and II each with one abaxial solenidion ωʺ (7 [7], 6–7 [7], respectively); barbed companion seta ftʺ subequal in length to solenidion (7–9 [7–8], 7–8 [7–8], respectively); pair of prorals p′ζ, pʺζ inserted on minute cuneiform tubercles (both 7–8). Solenidion and setae ft′, ftʺ inserted on small tubercles. Some leg setae blunt and of similar form to dorsal idiosomal setae (some may have 1–2 minute barbs)—seta l′ on trochanter III; seta d, l′ on femora I–II, d on femora III; all setae genua I–II; d, l″ on tibiae I–II and d on tibiae III–IV.

Etymology. This species is named after Mr John Jones, for his generous permission and assistance with collecting on his property.

Remarks. This species was collected at the same site and on the same host species as Goodeniacarus wondul sp. nov. (see Remarks for G. wondul sp. nov.).

Figures

FIGURE 43. Inglacarus jonesi sp. nov. adult female dorsum.

FIGURE 44. Inglacarus jonesi sp. nov. adult female venter.

FIGURE 45. Inglacarus jonesi sp. nov. adult female, A. legs (right side) with detail of the ventral aspect of tarsus I and II, and of the ventral setae on tibia I and II; B. detail of spermatheca.