Indoribates (Haplozetes) tajikistanensis Liu, Dalatov, Saidov & Chen, 2025, sp. nov.
Creators: name: Liu, Cheng-Lin
name: Dalatov, Abdulaziz
name: Saidov, Abdusattor
name: Chen, Jun
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Oribatida
Haplozetidae
Indoribates
Indoribates tajikistanensis

description: Indoribates (Haplozetes) tajikistanensis sp. nov.
Figs 1, 2 Common name. 塔吉克单翼甲螨
Type material.
Holotype • (female CJ-16-036): Tajikistan, Sughd Region, Ghonchi District, Zarnisor Village; 39°55'27"N, 69°08'42"E; 1055 m; moss, grass, and soil; 21 May 2016; Jun Chen leg. Paratypes • (three females, two males, CJ-16-037): same data as for holotype.
Diagnosis.
Body size: 400–471 × 257–298. Rostrum rounded. Rostral, lamellar and interlamellar setae long, setiform, barbed; le> in> ro. Bothridial seta fusiform, with short stalk and slightly longer, barbed head. Tutorium long, with tooth distally. Notogastral setae short, setiform thin, slightly barbed. Four pairs of notogastral saccules with small opening; Sa channel elongate, other channels drop-like. All epimeral setae setiform, barbed. Genital and aggenital setae slightly barbed. Both anal setae and adanal setae ad 1-2 roughened. Adanal lyrifissure immediately to anterolateral margin of anal opening.
Description.
Measurements. Body length 450 (holotype, female), 430–471 (five paratypes: two males, three females); body width 277 (holotype), 257–298 (five paratypes).
Integument. Body brown. Surface densely microfoveolate (visible only under high magnification in dissected specimens; × 1000); podosomal region and lateral part of prodorsum partially with dense microgranulate cerotegument.
Prodorsum (Fig. 1 A, C). Rostrum rounded. Tutorium long, with tooth distally. Lamellae long, located dorsolaterally. Sublamella short. Sublamellar porose area (7) oval. Rostral (57–67), lamellar (73–80) and interlamellar (65–75) setae setiform, barbed. Bothridial seta (49–55) fusiform, with short stalk and slightly longer, barbed head. Exobothridial seta (9) setiform short, roughened. Sejugal porose area diffuse, located posterolateral to interlamellar seta, transversely elongate.
Notogaster (Fig. 1 A, C). Anterior notogastral margin convex medially. Dorsophragma elongate. Pteromorph with distinct hinge. Ten pairs of notogastral setae (15–33) setiform, slightly barbed (visible under high magnification). Four pairs of saccules with small opening, Sa channel elongate, others channels drop-like. Opisthonotal gland opening and all lyrifissures clearly distinct.
Gnathosoma (Fig. 2 E – G). Subcapitulum size: 88–93 × 69–73. Subcapitular setae setiform; m (15–17) longer than a (13–15) and h (12–13); a and m barbed, h smooth. Both adoral setae (7–10) setiform, roughened. Palp (length 59–65) with setation 0-2 - 1 - 3 - 9 (+ ω). Postpalpal seta (5) spiniform, roughened. Chelicera (length 105–112) with two setiform, barbed setae (cha: 34–36; chb: 21–23).
Epimeral and lateral podosomal regions (Fig. 1 B, C). Epimeral setal formula: 3-1 - 3 - 3. All epimeral setae (11–19) setiform, barbed. Pedotectum II trapezoid, rounded apically. Discidium triangular, rounded apically. Circumpedal carina long, reaching to acetabulum II.
Anogenital region (Fig. 1 B, C). Genital (g 1 23, g 2 - g 5 17–11), aggenital (14–16) setae and adanal seta ad 3 setiform, slightly barbed. Both anal setae (9–11) and adanal setae ad 1, ad 2 (11–13) setiform, roughened. Adanal lyrifissure close and anterolateral to anal plate.
Legs (Fig. 2 A – D). All legs tridactylous; median claw thick, lateral claws thin; all claws slightly barbed on dorsal side. Dorsoparaxial porose area on femora I – IV and on trochanters III, IV well visible. Formulas of leg setation and solenidia: I (1-5 - 3 - 4 - 18) [1-2 - 2], II (1-5 - 3 - 4 - 15) [1-1 - 2], III (2-3 - 1 - 3 - 15) [1-1 - 0], IV (1-2 - 2 - 3 - 12) [0-1 - 0]. Homology of setae and solenidia indicated in Table 1.
Note. Roman letters refer to normal setae, Greek letters to solenidia (except ε = famulus). Single prime (′) marks setae on the anterior and double prime (″) seta on the posterior side of a given leg segment. Parentheses refer to a pair of setae.
Etymology.
The specific name tajikistanensis refers to the country encompassing the type locality of this new species.
Remarks.
Indoribates (Haplozetes) tajikistanensis sp. nov. is morphologically similar to I. (H.) vindobonensis (Willmann, 1935) (see also Grandjean 1936; Beck 1964; Kunst 1977; Mahunka 1982, 2001) from the Palaearctic, Ethiopian, Neotropical, and Oriental regions in having fusiform bothridial setae. However, the new species differs from I. (H.) vindobonensis by the position of the adanal lyrifissure iad (anterolateral margin of anal opening vs close and parallel to lateral margin of anal opening) and the shape of the saccule S 2 (with not bilobed channel vs with bilobed channel).
description: Published as part of Liu, Cheng-Lin, Dalatov, Abdulaziz, Saidov, Abdusattor & Chen, Jun, 2025, Two new species of the subgenus Indoribates (Haplozetes) (Acari, Oribatida, Haplozetidae) from Tajikistan, pp. 233-244 in ZooKeys 1229 on pages 233-244, DOI: 10.3897/zookeys.1229.130103