Spinturnix otonycterisi Dundarova & Orlova, 2022

Dundarova, Heliana, Orlova, Maria, Anisimov, Nikolay, Baskakova, Svetlana, Shakula, Georgiy, Shakula, Fedor, Shakula, Stepan & Amirekul, Kudaibergen, 2022, A new species of Spinturnix (Acari: Spinturnicidae) from the Turkestani longeared bat Otonycteris leucophaea (Chiroptera: Vespertilionidae) in Kazakhstan, Zootaxa 5222 (5), pp. 443-456 : 444-449

Spinturnix otonycterisi Dundarova & Orlova , sp. nov.

Figures 1–24 .

Description

Female

Dorsal idiosoma ( Figures 1, 2 ). Idiosoma about 840 long and 700 wide, broadly rounded anteriorly, widest at level of coxa II to III, with slightly pointed opisthosoma. Dorsal shield 524 long, 418 wide (519, 458 in paratype), with one anterior and two lateral small rounded projections; surface pitted. Shield widest at level of coxae II–III; with 11 pairs of pores (four of them small, others larger). Peritremes (199, 242 in holotype, 215, 239 in paratype) completely dorsal, with anterior ends between coxa II and III extending ventrally. Podonotal soft cuticle with four pairs of rough setae (43–61 in holotype, 39–49 in paratype) (only two setae on left side of body in holotype — Figure 2 , four pairs in paratype). Metapodosomal setae (36, 56 in holotype; 47, 51 in paratype) proximal to stigma. Opisthonotal integument without setae.

Ventral idiosoma ( Figures 3, 4 ). Tritosternum not visible. Sternal shield rounded triangular, 116 long, 124 maximal wide in holotype (118, 127 in paratype). Shield with weak cellular pattern and two pairs of setae on borders: St1 (25, 28 in holotype, 22, 24 in paratype), St2 (20, 24 in holotype, 28, 31 in paratype), and two pairs of small circular pores. Setae St3 21, 25 in holotype (36, 41 in paratype) on unsclerotised integument. One pair of endopodal sclerites on ventral surface between coxae I and II. Genital shield wedge-shaped, without setae, 91 long, 54 wide in holotype (93, 61 in paratype). Unsclerotised integument in ventral region with five pairs of setae, in intercoxal region 7–8 setae (13–25 long in holotype, 8–26 in paratype). Anal shield triangular, with one pair of setae.

Legs ( Figures 5–8 ). Legs stout, coxae unusually wide (length-width ratio of coxae as in Table 2 ), with wavy linear pattern. Posterior setae of coxae II long (211, 218 in holotype, 208, 226 in paratype), thick and smooth. Chaetotaxy and measurements of legs as in Tables 1 and 2 respectively. Ventral setae of legs mostly short (32–51), lateral and dorsal mostly long (87–373). Tarsal claws long, pulvilli well developed.

Gnathosoma ( Figures 9, 10 ). Length of gnathosoma 362, width 166 (incl. palps) and 199 long, 61 wide (without palps) (331 by 142 and 141 by 72 respectively in paratype). Epistome small and short. Hypostomal setae: hyp1 8–9 in length, hyp2 and hyp3 minute. Hypostomal processes pointed. Chelicera with toothed chela.

Differential diagnosis. The females of Spinturnix otonycterisi differ from other Spinturnix species by the dorsal shields having three small projections (vs oval, diamond-shaped or with one or two large projections in other species), and the absence of dorsal opisthosomal setae (vs presence of dorsal opisthosomal setae in all other species).

Male

Dorsal idiosoma ( Figures 11, 12 , Table 3 ). Idiosoma about 830 long and 640 wide, rounded diamond-shaped, widest at level of coxa II to III. Dorsal shield widest at level of coxae II–III; with 11 pairs of pores (two of them large, situated on edges of shield, others on shield). Peritremes with stigma completely dorsal, with anterior ends between coxa II and III extending ventrally. Podonotal soft cuticle with four pairs of rough setae. Metapodosomal setae proximal to stigma. Opisthonotal region without setae.

Ventral idiosoma ( Figures 13–18 , Table 3 ). Tritosternum not visible. Sternogenital shield angular, with a constriction in the upper third ( Figure 13, 14 ) or with transverse projections ( Figures 15–18 ). Shield with round pattern and three pairs of setae and two pairs of small pores. Three pairs of endopodal sclerites on ventral surface; one pair between coxae I and II, and two pairs between coxae II and III. Unsclerotised cuticle with weak scaly pattern. Unsclerotised integument in ventral region with four pairs of setae (including one microsetal pair), intercoxal region with one pair of setae. Anal shield triangular, with one pair of setae.

Legs. Mostly as in females: stout, with wide coxae having wavy linear pattern. Chaetotaxy of legs is presented in Table 1 , measurements as in Table 4 .

Gnathosoma . Generally characteristic of species of genus Spinturnix . Palps 327 long, chelicerae 318 long ( Figure 20 ). Fixed digit slightly curved, 68 long, spermatodactyl massive, 53 long, movable digit rectangular, 62 long.

Differential diagnosis. The males of Spinturnix otonycterisi differ from other Spinturnix species by the absence of dorsal opisthosomal setae (vs presence of dorsal opisthosomal setae in all other species) and by the bizarre shape of the sternogenital shield (presence of constrictions and transversal projections).

Protonymph

Dorsal idiosoma ( Figures 19, 21, 22 ). Idiosoma about 800 long and 650 wide, obovate, widest at level of fourth pair of podonotal setae. Dorsal surface with two shields. Large podonotal shield (382 long, 374 wide) rounded with almost straight posterior margin, surface pitted. Ten pairs of pores (three of them large, others smaller) situated on podonotal shield. Opisthonotal shield small (153 long, 171 wide), pitted, with three pairs of setae. Peritremes completely dorsal, with anterior ends between coxa II and III, extending ventrally. Podonotal soft cuticle with four pairs of rough setae (111–124). Metapodosomal setae proximal to stigma (135). Opisthonotal region with two pairs of setae (136–147).

Ventral idiosoma ( Figures 23, 24 ). Tritosternum not visible. Sternal shield (173 long, 113 wide) weakly sclerotised, with granular pattern and two pairs of small pores. Sternal setae on unsclerotised integument: St1 10 long, St2 12 long, St3 11 long. Unsclerotised integument in ventral region with one pair of setae, intercoxal region with five pairs of setae (11–19 long). Anal shield triangular (53 long, 47 wide), with two posterior setae.

Legs. Mostly as in females: stout, with wide coxae having wavy linear pattern. Posterior setae of coxae II long (167), thick and smooth. Leg chaetotaxy as in Table 5 , measurements as in Table 6. Ventral setae of legs mostly short (18–41), lateral and dorsal mostly long (90–190). Tarsal claws long, pulvilli well developed.

Deutonymph Unknown.

Taxonomic summary

Type material. Holotype female, 1 paratype female; 3 paratype males; 1 paratype protonymph.

Type host. Turkestani long-eared bat Otonycteris leucophaea .

Type locality. Kazakhstan: Karatau Mountains, Bazhansay river 43°04.08 N 69°54.18 E, 27 July 2022, leg. H. Dundarova, det. M.V. Orlova.

Etymology. The new species is named after the type host Otonycteris leucophaea .

Figures

FIGURES 1–4. Spinturnix otonycterisi Dundarova & Orlova, sp. nov., female. 1, photograph, dorsal; 2, drawing, dorsal; 3, photograph, ventral; 4, drawing, ventral.

FIGURES 5–10. Spinturnix otonycterisi Dundarova & Orlova, sp. nov., female. 5, leg I, dorsal; 6, leg II, dorsal; 7, leg III, dorsal; 8, leg IV, dorsal; 9, gnathosoma, dorsal; 10, chelicera, lateral.

FIGURES 11–16. Spinturnix otonycterisi Dundarova & Orlova, sp. nov., Male. 11, photograph, dorsal; 12, drawing, dorsal; 13, photograph, ventral; 14, drawing, ventral; 15, photograph, sternogenital shield; 16, drawing, sternogenital shield.

FIGURES 17–22. Spinturnix otonycterisi Dundarova & Orlova, sp. nov. 17, Male, photograph, sternogenital shield; 18. Male, drawing, sternogenital shield; 19, Protonymph, habitus. 20. Male, chelicera. 21, Protonymph, photograph, dorsal; 22, Protonymph, drawing, dorsal.

FIGURES 23–24. Spinturnix otonycterisi Dundarova & Orlova, sp. nov. 23, Protonymph, photograph, ventral; 24, Protonymph, drawing, ventral.