Pterygosoma balochistani Fajfer, 2016

Fajfer, Monika, 2020, A systematic revision of the scale mite genus Pterygosoma Peters, 1849 (Acariformes: Pterygosomatidae), Zootaxa 4805 (1), pp. 1-147 : 26-30

Pterygosoma balochistani Fajfer, 2016 ( Figs 17–21 )

Pterygosoma balochistani Fajfer, 2016: 348 , figs 4–9, 11

Type host: Laudakia nupta nupta (Sauria: Agmaidae). Type locality: Pakistan (Darzi Chan) .

Diagnosis. FEMALE. Gnathosoma . Chelicerae with swollen cheliceral part shorter than slender distal part. Fixed cheliceral digit with small tines. Setae dF and dG equal in length. Palpal tibia with slender claw; palpal tarsi with 4 setae. Subcapitulum with filiform setae n. Hypostome with small depression present at apex. Idiosoma 515– 715 long and 1060–1270 wide. Dorsum with serrate setae: anterior group consist of 2 setae; lateral group consist of 13–20 pairs of setae. Postero-lateral part with 5–9 pairs of shorter setae and 10–13 pairs of longer setae. Medial part of idiosoma with 5 pairs of dorso-median serrate setae dm1–dm5. Eyes absent. Venter. Setae vm1 filiform, vm2 and vm3 serrate. Genital slit situated terminally. Genital series represented by spine-like setae g1–g4. Pseudanal series represented by 7 pairs of serrate setae ps1–ps7. Setae ps1 and ps7 shorter than setae ps2–ps6. Legs chaetotaxy of tibiae-coxae I–IV as in persicum group ( Tab. 2). All setae filiform and situated on coxal fields, except for setae 1a situated on intercoxal area. Setation of tarsi I–IV as in group A ( Tab. 3). Setae tc’ of legs II–IV and setae a’, a”, u’, u” of legs I–IV smooth, all setae vs’ and vs” smooth except for vs’ of legs II.

MALE. Gnathosoma as in female. Idiosoma 295–395 long and 470–600 wide. Dorsum with 5 groups of serrate setae: 3 pairs of anterior setae, 5–7 pairs of lateral setae, 4–5 pairs of postero-lateral setae, 2–5 pairs of peripheral setae and 4 pairs of dorso-median setae dm1–dm4. Eyes absent. Aedeagus about 125–170 long, directed forward (in 1 male attached to protonymph directed backwards); genito-anal opening with 4 pairs of filiform setae. Venter. Setae vm1 filiform, setae vm2 and vm3 with barely discernible serration. Legs as in female, except for absence of setae vTrIV.

NYMPH CHRYSALIS. Peritremes and alveolae of pseudanal setae visible. Idiosoma 445–450 long and 645– 670 wide.

DEUTONYMPH. Gnathosoma as in female. Idiosoma 470–510 long and 670–790 wide. Dorsum with 5 groups of serrate setae: 2–3 pairs of setae situated anteriorly; 13 pairs of setae situated laterally; 7–9 pairs of setae situated postero-laterally; 7–9 pairs of setae situated peripherally and 4 pairs of setae dm1–dm4 situated dorso-medially. Eyes absent. Venter. Setae vm1 filiform, vm2 and vm3 serrate. Genital slit situated mainly ventrally. Genital series represented by 4 pairs of spine-like setae g1–g4. Pseudanal series represented by 6 pairs of serrate setae ps1–ps6. Setae ps1 and ps6 shorter than ps2–ps5. Legs as in female. All setae on each podomere smooth, except for dFI–IV, v’TiI–IV, v”TiI–IV and dTiI–IV. Setation of tarsi I–IV as in female. Setae tc’ of legs II–IV, setae a’, a”, u’, u” of legs I–IV smooth, all setae vs’ and vs” serrate.

PROTONYMPH. Gnathosoma as in female. Idiosoma 385–450 long and 505–730 wide. Dorsum with 5 groups of setae: 3 pairs of serrate setae situated anteriorly, 5–6 pairs of serrate setae situated laterally, 3–5 pairs of serrate setae situated postero-laterally, 3–5 pairs of serrate setae situated peripherally, and 4 pairs of slightly apically ex- panded setae (dm1–dm4) situated dorso-medially. Eyes present. Venter. Setae: vm1 filiform, vm2 and vm3 serrate. Genital slit situated mainly ventrally. Genital series represented by 3 pairs of inconspicuous setae g1–g3. Pseudanal series represented by 7 pairs of setae ps1–ps7. Setae ps1–ps3 slightly serrate; setae ps4 and ps5 serrate; setae ps6 and ps7 serrate and slightly apically expanded. Legs. Coxal setation and setation of tibiae-femora I–IV as in female, setation of trochanters I–IV: 1–1–1–0. All setae on each podomere smooth, except for dFI–IV, v’TiI–IV, v”TiI–IV and dTiI–IV. Setation of tarsi I–IV as in female. Setae tc’ of legs II–IV and setae a’, a”, u’, u” of legs I–IV smooth, setae vs’ and vs” of legs I–IV serrate.

LARVA. Gnathosoma as in female. Idiosoma Dorsum with 13 pairs of serrate setae: 8 pairs of shorter setae situated antero-laterally, 2 pairs of longer setae situated medio-laterally, 1 pair of setae situated terminally near genital area and 2 pairs of pseudanal setae ps1 and ps2 situated terminally. Venter without ventro-median setae vm1–vm3. Genital slit situated ventrally. Genital series represented by 3 pairs of inconspicuous setae g1–g3. Legs. Coxal setation: 1a, 1b, 3a, arranged in formula 2–0–1, all setae filiform; setae of trochanters I–IV (0–0–0), femora I–IV (3–1–1), genua I–IV (2[1]–0–0), tibiae I–IV (5–3–3). All setae on each podomere slightly serrate, except for filiform setae l’Ti, l”Ti, dGI and vGI. Setation of tarsi: I 11 setae (ft, tc’, p’, a’, a”, it’, it”, u’, u”, vs’, vs”) and solenidion ω1; II–IV as in female. All setae tc’, vs’ and vs ” slightly serrate, setae a’, a”, u’ and u” smooth.

Type material (examined). Female holotype and 8 female, 7 male, 2 nymph chrysalis, 3 deutonymph, 6 protonymph and 5 larva paratypes from Laudakia nupta nupta (de Filippi) (Sauria: Agamidae ) ( NHM no. 1978.783), PAKISTAN, Darzi Chan, 1978, coll. S. Telford.

Type material deposition. Holotype, 4 female, 6 male, 2 nymph chrysalis, 3 deutonymph, 5 protonymph and 4 larva paratypes in the AMU, 3 female, 1 male and 1 protonymph paratypes in the ZSM, 1 female, 1 male, 1 protonymph and 1 larva paratypes in the NHM.

Host and distribution. This species is known only from Laudakia nupta nupta Pakistan [Balochistan, Darzi Chan] (Fajfer 2016).

Figures

FIGURE 17. Pterygosoma balochistani Fajfer, 2016, female. A, dorsal view; B, tarsus I in dorsal view; C, tarsus II in dorsal view; D, tarsus III in lateral view (after Fajfer 2016).

FIGURE 18. Pterygosoma balochistani Fajfer, 2016, female, details. A, gnathosoma in dorsal view; B, tarsus I in dorso-lateral view; C, tarsus I in ventro-lateral view; D, tarsus II in dorsal view; E, tarsus II in ventral view (after Fajfer 2016).

FIGURE 19. Pterygosoma balochistani Fajfer, 2016, male. A, dorsal view; B, ventral view (after Fajfer 2016).

FIGURE 20. Pterygosoma balochistani Fajfer, 2016, deutonymph. A, dorsal view; B, ventral view (after Fajfer 2016).

FIGURE 21. Pterygosoma balochistani Fajfer, 2016, larva in dorsal view (after Fajfer 2016, modified).