taxonID	type	description	language	source
853987D1FFCD172C6EEE92DD5317FCB5.taxon	type_taxon	Type species: Cheyletus ornatus Canestrini and Fanzago, 1876, by original designation.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFCD17216EEE932E53CEF84A.taxon	description	(Figures 1 – 16) Description. Female (n = 19) (Figs 1 – 7). Length of idiosoma 240 (225 – 255), width 190 (175 – 190). Dorsum (Figs 1 A, 5, 7 B, C). Prodorsum with eight pairs of fan-shaped setae; setae vi distinctly larger than other dorsal setae (Fig. 7 B). Main part of prodorsum with cuticular tubercles; cuticle between tubercles weakly striated (Fig. 7 B); setae c 2 situated on small platelets. Hysterosomal dorsum with eight pairs of fan-shaped setae, smaller than those on prodorsum; hysterosomal shield poorly sclerotized, weakly striated, subtriangular, with one pair of setae e 1 (Fig. 7 C); other dorsal hysterosomal setae situated on small platelets. Cuticle around hysterosomal shield with tubercles and striae between them; lateral and posterior parts of hysterosomal dorsum striated. Lyrifissures im and ip not evident. Cuticle between gnathosoma and prodorsal shield punctate. Lengths of dorsal setae: vi 33 (30 – 33), ve 23 (20 – 23), si 21 (18 – 21), se 16 (14 – 16), anterior prodorsal dorsocentral setae 20 (18 – 20), middle prodorsal dorsocentral setae 19 (17 – 19), posterior prodorsal dorsocentral setae 18 (16 – 18), c 2 15 (14 – 17), d 1 16 (14 – 16), d 2 16 (13 – 16), e 1 14 (13 – 14), e 2 14 (13 – 14), f 1 15 (12 – 15), f 2 15 (12 – 15), h 1 15 (13 – 15), h 2 13 (12 – 14). Venter (Figs 1 B, 6, 7 D). Idiosomal venter with three pairs of intercoxal (1 a, 3 a, 4 a), three pairs of aggenital (ag 1 – ag 3), two pairs of genital (g 1, g 2), and three pairs of pseudanal setae (ps 1 – ps 3); coxisternal fields I with two setae (1 b, 1 c), coxisternal fields II with one seta (2 c), coxisternal fields III with two setae (3 b, 3 c), and coxisternal fields IV with two setae (4 b, 4 c). Ventral soft cuticle with small granules (Fig. 7 D). Lyrifissures ih located laterad genital setae. Setae 3 b blunt-tipped and weakly barbed; other ventral setae smooth and pointed. With two pairs of smooth elongate cuticular areas posteriad coxisternal fields II and laterad setae 3 a. Gnathosoma (Figs 2, 7 A). Protegmen smooth, with only a few longitudinal striae laterally; tegmen with median depression and characteristic ornamentation as in Figure 7 A. Peritremes with 8 - 9 pairs of arch-like segments; posterior segment characteristically bent medially. Palpal supracoxal setae (ep) hidden under lateral parts of peritremes. Palpal femur and genu fused laterally. Palpfemur with one broadly lanceolate and strongly barbed dorsal (d) and two smooth, filiform ventral setae, (v’, v ”); palpgenu with one fan-shaped dorsal (d) and lanceolate, strongly barbed lateral seta (l ”); palptibia with three setae: smooth and pointed d situated near anterior margin of flat anteromedian flange, filiform l’, and broadly lanceolate and strongly barbed l ”; setae d on femur and genu situated on short protuberances. Tibial claw with 6 – 8 processes. Tarsus with two comb-like setae (acm, sul), two sickle-like eupathidia (ul’ϛ, ul ” ϛ) and one baculiform solenidion (ω); inner comb-like seta (acm) with 15 - 19 projections; outer comb-like seta (sul) with 11 – 14 projections. Adoral setae smooth, pointed; ao 1 slightly shorter than ao 2. Subcapitulum finely punctate, with one pair of long filiform setae n. Legs (Figs 3, 4). Lengths of legs: leg I 130 (115 – 130), leg II 120 (110 – 120), leg III 130 (125 – 135), leg IV 145 (135 – 150). Leg I (Fig 3 A). Tarsus with short solenidion ω 8 (8 – 9) situated on prominent nipple; seta ft minute, hardly discernible, situated near the base of solenidion; with two blunt-tipped tectal eupathidia (tc’ϛ, tc ” ϛ) as long as leg I; tarsus with one pair of ventrodistal unguinal setae (u’, u ”), both smooth, pointed and short (Fig. 3 A’); other tarsal setae absent. Tibia with one fan-shaped seta (d), three lanceolate setae (l ”, v’, v ”), and tiny club-shaped dorsodistal solenidion φ 2 (2); genu with two fan-shaped setae (d, l’) and short rod-like dorsodistal sensory seta k 2 in shallow depression; femur with one fan-shaped seta (d) and one lanceolate seta (v’); trochanter with one lanceolate seta (v’); leg supracoxal seta (el) weakly clavate, similar in shape to k on genu, situated dorsomesad trochanter and usually covered by lateral margins of idiosomal soft cuticle. Leg II (Fig. 3 B). Tarsus with three smooth and pointed setae (tc’, tc ”, vs), two weakly barbed, curved and slightly thickened setae (a’, a ”), two filiform pointed and with long barbs unguinal setae (u’, u ”), and lateral baculiform solenidion ω 12 (10 – 12); tibia with one fan-shaped seta (d), one lanceolate seta (l ”), and two filiform smooth and pointed setae (v’, v ”); genu with one dorsal fan-shaped seta (d) and one broadly lanceolate lateral seta (l’); femur with one dorsal fan-shaped seta (d) and one ventral lanceolate seta (v ”); trochanter with one baculiform and barbed seta (v’). Leg III (Fig. 4 A). Tarsus with three smooth pointed setae (tc’, tc ”, vs), two weakly barbed, curved and slightly thickened setae (a), and wo filiform pointed and with long barbs unguinal setae (u’, u ”); tibia with two broadly lanceolate setae (d, l ”), one narrowly lanceolate seta (v’), and one filiform smooth and pointed seta (v ”); genu with one dorsal fan-shaped seta (d) and one broadly lanceolate lateral seta (l’); femur with one dorsal fan-shaped seta (d) and one ventral lanceolate seta (v’); trochanter with two narrowly lanceolate setae (l’, v’). Leg IV (Fig. 4 B). Tarsus with three smooth pointed setae (tc’, tc ”, vs), two weakly barbed, curved and slightly thickened setae (a), and wo filiform pointed and with long barbs unguinal setae (u’, u ”); tibia with two broadly lanceolate seta (d, l ”), one narrowly lanceolate seta (v’), and one filiform smooth and pointed seta (v ”); genu with one dorsal fan-shaped seta (d) and one broadly lanceolate lateral seta (l’); femur with one dorsal fan-shaped seta (d); trochanter with one baculiform and weakly barbed seta (v’). Male (n = 13) (Figs 8, 9). Length of idiosoma 160 – 175, width 145 – 155. Idiosoma similar to that of female, except following character states: opisthosoma narrower posteriorly; setae h 1 and ps 1 smooth, baculiform, setae h 2 smooth and weakly clavate; genital setae absent; idiosomal venter with smooth striae; tegmen without distinct depression. Aedeagus simple, slightly curved and attenuate distally. Legs (Fig. 9). In general leg setation as in female, except presence of well-developed ventral solenidia on tarsi III and IV, and relatively longer solenidia on tibiae I and II. Lengths of legs: leg I 95 – 105, leg II 91 – 100, leg III 95 – 105, leg IV 100 – 110. Lengths of solenidia and seta k: ω I 11 – 12, φ I 3, k 2, ω II 14 – 19, ω III 16 – 20, ω IV 20 – 24. Tritonymph (n = 20) (Fig. 10). Length of idiosoma 210 – 220, width 165 – 175. Dorsum as in female. Venter (Fig. 10). Similar to that of female, except presence of only two pairs of aggenital and one pair of genital setae, and ventral striae smooth. Gnathosoma and legs as in female. Lengths of legs: leg I 105 – 115, leg II 100 – 110, leg III 105 – 115, leg IV 110 – 120. Protonymph (n = 16) (Figs 11 – 12). Length of idiosoma 145 – 150, width 125 – 140. Dorsum (Fig. 10 A). Prodorsum with seven pairs of setae (Fig. 11 A); hysterosomal dorsum with six pairs of setae (d 1, d 2, e, f 1, f 2, h 1); setae h 1 usually located ventrally; hysterosomal shield without setae. Venter (Figs 11 C, D). Idiosomal venter with two pairs of intercoxal (1 a, 3 a), one pair of aggenital (ag 1), and three pairs of pseudanal setae (ps 1 – ps 3). Coxisternal fields I – III as in female; coxisternal fields IV without setae. Ventral striae smooth. Gnathosoma (Fig. 11 C) similar to that of female except absence of setae l ” of genu and v’ of femur. Legs (Fig. 12). Lengths of legs: leg I 85 – 92, leg II 77 – 83, leg III 84 – 90, leg IV 85 – 91. Setation of legs similar to that of female, except the following: trochanters I, II and IV without setae; trochanter III with one seta (l’); femur III with one seta (d); genu IV without setae; tarsus IV without setae vs and a ”. Larva (n = 5) (Figs 13 – 16). Length of idiosoma 140 – 160, width 120 – 135. Dorsum (Figs 13 A, 14). All dorsal setae broadly lanceolate. Prodorsum with six pairs of setae (vi, ve, si, se, c 1, c 2); hysterosoma without dorsal shied; with five pairs of setae (d 1, d 2, e, f 1, f 2). Venter (Fig. 13 B). Idiosomal venter with two pairs of intercoxal (1 a, 3 a), three pairs of pseudanal (ps 1 – ps 3), and one pair of setae h 1. Coxisternal fields I each with one seta (1 b), coxisternal fields II and III without setae. All ventral setae smooth and pointed. Gnathosoma (Fig. 15). In general similar to that of protonymph, except absence of setae n on subcapitulum and v ” on palpfemur. Legs (Fig. 16). Lengths of legs: leg I 66 – 70, leg II 63 – 67, leg III 69 – 72. In general legs I – III similar to those of protonymph, except the following: tarsus I with only one long eupathid-like seta (tc ” ϛ), seta tc’ very short; trochanter III without seta; genua II and III with one seta each (l’); tarsi II and III without setae vs and a ”.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFCD17216EEE932E53CEF84A.taxon	materials_examined	Type material. Female holotype, slide VS 201122, Vietnam, Cat Tien National Park, on Dipterocarpus alatus; crown, branches at the height of 20 – 25 m; 11 ° 26 ′ 35.11 ′′ N, 107 ° 26 ′ 01.38 ′′ E; 20. XI. 2022 – 10. XII. 2022, collected by V. M. Salavatulin; paratypes: 8 females, 6 males, 4 TN, 6 PN, 1 larva, same data; 9 females, 6 males, 16 TN, 10 PN, 4 L, Vietnam, Cat Tien National Park, on Dipterocarpus alatus; crown, branches at the height of 20 – 25 m; 11 ° 26 ′ 34.97 ′′ N 107 ° 26 ′ 02.64 ′′ E; 20. XI. 2022 – 10. XII. 2022, collected by V. M. Salavatulin; 1 female, 1 male, Vietnam, Cat Tien National Park, on Dipterocarpus alatus; crown, branches at the height of 20 – 25 m; 11 ° 26 ′ 30.60 ′′ N, 107 ° 25 ′ 56.15 ′′ E; 20. XI. 2022 – 10. XII. 2022, collected by V. M. Salavatulin. Type deposition. The holotype and one protonymph paratype are deposited in the collection of the Zoological Institute of RAS, St, Petersburg, Russia, other paratypes are deposited in the acarological collection of the Museum of Zoology, University of Tyumen, Tyumen, Russia.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFCD17216EEE932E53CEF84A.taxon	diagnosis	Differential diagnosis. The new species is most similar to Cheletogenes meihuashanense Lin and Liu, 1994 in having the same leg and idiosomal chaetotaxy, and presence of subtriangular dorsal hysterosomal shield with one pair of setae (e 1). Female of the new species differs from Ch. meihuashanense in having much larger dorsal idiosomal setae, especially vi which touching or almost touching to each other at their median margins (vs. median margins of setae vi far separated from each other in Ch. meihuashanense); seta d of palpgenu fan-shaped (vs. seta d of palpgenu lanceolate in Ch. meihuashanens); seta d of tibia I fan-shaped (vs. lanceolate in Ch. meihuashanense); setae c 2 fan-shaped with evenly rounded anterior margin (vs. setae c 2 broadly lanceolate with attenuate tip in Ch. meihuashanense); protegmen smooth (vs. protegmen with U-shaped striation in Ch. meihuashanense).	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFCD17216EEE932E53CEF84A.taxon	etymology	Etymology. The name of the new species refers to its geographical distribution in Vietnam.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFC117236EEE961253DDFE6F.taxon	type_taxon	Type species: Vietocheyla subiasi sp. nov.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFC117236EEE961253DDFE6F.taxon	diagnosis	Diagnosis. Female. Body ovoid; legs II and III separated by less than body width. Ocelli present; dorsum with prodorsal and hysteronotal weakly granulated shields, both with similar dorsal fan-shaped setae; setae c 2 similar to other dorsal setae. Palpal tarsus with two comb-like and two sickle-like setae; palpal claw edentate. Peritremes with more than three segments. Leg I almost as long as idiosoma, other legs shorter; tarsus I without pretarsus, with three long terminal setae (tc’ϛ, tc ” ϛ, p’ϛ) and very long solenidion ω; guard seta (ft) narrowly lanceolate and long; tarsus I ventrally with four short setae (p ”, u’, u ”, vs); tarsi II – IV with smooth claws; solenidion φ on tibia II present; tibiae III and IV with small dorsodistal alveolar pits. Species included. The new genus includes only one species V. subiasi sp. nov. described herein. Differential diagnosis. The new genus belongs to the tribe Cheletogenini Volgin, 1969, which includes three genera: Eutogenes Baker, 1949, Prosocheyla Volgin, 1969, and Cheletogenes Oudemans, 1905 and are characterized by the complete absence of pretarsus on tarsus I (Bochkov & Fain 2001). The new genus is most similar to Eutogenes in having edentate palpal tibial claw and similar shape and number of dorsal idiosomal setae. The new genus differs from Eutogenes mainly by the presence of ocelli (vs. absent in Eutogenes), and also differs from Eutogenes in having four short ventral setae on tarsus I (p ”, u’, u ”, vs) (vs. only two setae (u, vs) in Eutogenes).	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFC117236EEE961253DDFE6F.taxon	etymology	Etymology. The name of the new genus is a combination of two words: vieto, the first part of the country name Vietnam, and cheyla, the typical ending in cheyletid genera, and refers to distribution in Vietnam.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFC2173F6EEE95605227F858.taxon	description	(Figures 17 – 20) Description. Female (n = 2) (Figs 17 – 19, 20 A). Length of idiosoma 230 (210), width 170 (175). Dorsum (Figs 17 A, 20 A). Prodorsal and hysterosomal shields with 11 and 12 pairs of setae, respectively; most dorsal setae fan-shaped (Fig. 20 A), subequal in length (20 – 22) and only one pair of posterior setae on hysterosomal shield and one pair posteriad hysterosomal shield widened basally and with attenuate tip. Setae c 2 located on separate plates. Dorsal shields ornamented with numerous granules usually connected with delicate striae. Hysterosomal shield with two pairs of poorly visible lyrifissures im and ip. Soft cuticle smoothly striated on podosoma and granulated on opisthosoma; cuticle between gnathosoma and prodorsal shield punctate. Venter (Fig. 1 B). Idiosomal venter with three pairs of intercoxal (1 a, 3 a, 4 a), three pairs of aggenital (ag 1 – ag 3), two pairs of genital (g 1, g 2), and three pairs of pseudanal setae (ps 1 – ps 3); coxisternal fields I with two setae (1 b, 1 c), coxisternal fields II each with one seta (2 c), coxisternal fields III each with two setae (3 b, 3 c) and coxisternal fields IV each with two setae (4 b, 4 c). Setae 1 b and 3 b barbed, widened basally and with attenuate tips; other ventral setae filiform, smooth. Ventral soft cuticle mostly with smooth striae and only posteriad anal opening with small granules. Lyrifissures ih located posterolaterad anal opening. Gnathosoma (Figs 18, 20 A). Length of gnathosomal capsule 62 (64). Protegmen with several transverse striae. Tegmen as on Figure 20 A. Peritremes with four pairs of segments. Palpal supracoxal setae (ep) situated laterad fourth peritremal segment. Palpfemur with three setae, one lanceolate and strongly barbed dorsal (d) and two smooth, filiform ventral (v’, v ”); palpgenu with two setae, one lanceolate dorsal (d) and smooth, filiform lateral (l ”); palptibia with three setae, one barbed and pointed dorsal (d), and two smooth, filiform (l’, l ”); setae d on femur, genu and tibia situated on short protuberances. Tibial claw edentate. Tarsus with two comb-like setae (acm, sul), two sickle-like eupathidia (ul’ϛ, ul ” ϛ) and one baculiform solenidion (ω); inner comb-like seta (acm) with 18 projections; outer comb-like seta (sul) with 8 projections. Adoral setae smooth, pointed; ao 1 slightly shorter than ao 2. Subcapitulum with one pair of long filiform setae n. Legs (Figs 17 A, 19). Lengths of legs: leg I 235, leg II 145, leg III 150, leg IV 170. Leg I (Figs 19 A, B). Tarsus without pretarsus, with very long solenidion ω 170, three very long and finely serrated blunt-tipped eupathid-like setae (tc’ϛ, tc ” ϛ, p’ϛ), narrowly lanceolate and barbed guard seta ft, filiform, smooth ventral setae (vs, u’, u ”) and tiny smooth and blunt-tipped proral seta p ”; tarsal solenidion and guard setae located on distinct nipple. Tibia with four lanceolate setae (d, v’, v ”, l ”) and baculiform dorsodistal solenidion φ 7; genu with one dorsal fan-shaped (d), one lateral lanceolate setae (l’) and short weakly clavate dorsodistal seta k 3 located in shallow depression, femur with one dorsal fan-shaped (d) and one ventral lanceolate setae (v’); trochanter with one lanceolate seta (v’); leg supracoxal seta (el) weakly clavate, similar in shape to seta k on genu, situated dorsomesad trochanter and usually covered by lateral margins of idiosomal soft cuticle. Leg II (Fig. 19 C). Tarsus with two smooth pointed tectal setae (tc’, tc ”), two weakly barbed, curved and slightly thickened setae (a), three filiform pointed and barbed setae (u’, u ”, vs), and long ventral baculiform solenidion ω 20; tibia with one broadly lanceolate seta (d), two lanceolate setae (v’, l ”), one filiform smooth and pointed seta (v ”) and tiny peg-like dorsodistal solenidion φ 3; genu with one dorsal fan-shaped seta (d) and one lanceolate lateral seta (l’); femur with one dorsal fan-shaped seta (d) and one ventral seta with widened base and attenuate tip (v ”); trochanter with one seta with widened base and attenuate tip (v’). Leg III (Fig. 19 D). Tarsus with two smooth pointed tectal setae (tc’, tc ”), two weakly barbed, curved and slightly thickened setae (a), and three filiform pointed and barbed setae (u’, u ”, vs); tibia with one broadly lanceolate seta (d), two lanceolate setae (v’, l ”), one filiform smooth and pointed seta (v ”) and dorsodistal alveolar pit (probably vestige of solenidion φ); genu with one dorsal fan-shaped seta (d) and one lanceolate lateral seta (l’); femur with one dorsal fan-shaped seta (d) and one ventral seta (v’); trochanter with one seta with widened base and attenuate tip (v’). Leg IV (Fig. 19 E). Tarsus with two smooth pointed tectal setae (tc’, tc ”), two weakly barbed, curved and slightly thickened setae (a), and three filiform pointed and barbed setae (u’, u ”, vs); tibia with one broadly lanceolate seta (d), two lanceolate setae (v’, l ”), one filiform smooth and pointed seta (v ”) and dorsodistal round alveolar pit (probably vestige of solenidion φ); genu with one dorsal fan-shaped seta (d) and one lanceolate lateral seta (l’); femur with two fan-shaped seta (d, v’); trochanter with one seta with widened base and attenuate tip (v’). Tritonymph (n = 3) (Figs 20 B – D). Length of idiosoma 175 – 180, width 145 – 160. Dorsum (Figs 20 C, D). Prodorsal (Fig. 20 C) and hysterosomal (Fig. 20 B) shields each with eight pairs of setae. Setae c 2 located on separate plate. Dorsal idiosomal setae narrower than in female. Venter (Fig. 20 D). Venter of podosoma as in female. Opisthosomal venter with two pairs of aggenital setae, one pair of genital setae, three pairs of pseudanal setae, and one pair of setae with widened base and attenuate tip posteriad anal opening. Gnathosoma and legs as in female. Male, protonymph and larva unknown.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFC2173F6EEE95605227F858.taxon	materials_examined	Type material. Female holotype, slide VS 101222, Vietnam, Cat Tien National Park, on Dipterocarpus alatus; crown, bark on a tree trunk at the height of 20 – 25 m; 11 ° 26 ′ 34.64 ′′ N 107 ° 26 ′ 06.67 ′′ E; 20. XI. 2022 – 10. XII. 2022, collected by V. M. Salavatulin; paratypes: 1 female and 3 TN, same data. Type deposition. All specimens are deposited in the acarological collection of the Museum of Zoology, University of Tyumen, Tyumen, Russia.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFC2173F6EEE95605227F858.taxon	etymology	Etymology. This species is named after Prof. Dr. Luis. S. Subías, the famous Spanish oribatologist.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFDF17396EEE9655537FFD17.taxon	type_taxon	Type species: Paracheletogenes mirabilis sp. nov.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFDF17396EEE9655537FFD17.taxon	diagnosis	Diagnosis. Female. Idiosoma as long as wide; legs II and III separated by less than body width. Ocelli present; dorsum with prodorsal and hysteronotal shields, lateral and median setae dissimilar in shape; setae c 2 fan-shaped; dorsal cuticle out of shields with tubercles. Palpal tarsus with two comb-like and two sickle-like setae; palpal claw with more than three teeth. Peritremes with more than three segments. All legs distinctly shorter than idiosoma; tarsus I without claws and empodium, with three long terminal setae (tc’ϛ, tc ” ϛ, p’ϛ) and a short solenidion ω; guard (ft) and vs setae absent; tarsus I ventrally with three short setae (p ”, u’, u ”); tarsi II – IV with smooth claws; solenidion φ on tibia II absent. Species included. The new genus includes only one species P. mirabilis sp. nov. described herein. Differential diagnosis. As Vietocheyla gen. nov., the new genus also belongs to the tribe Cheletogenini. The new genus is most similar to Cheletogenes in having palpal tibial claw with more than three teeth; dorsal idiosomal cuticle out of shields with tubercles; tarsus I without seta vs, and palptibia with characteristic flat anteromedian flange. The new genus differs from Cheletogenes in having dissimilar in shape dorsocentral and lateral dorsal idiosomal setae (vs. dorsocentral and lateral dorsal idiosomal setae similar in shape in Cheletogenes); tarsus I with three long terminal setae (tc’ϛ, tc ” ϛ, p’ϛ) and three ventral setae (p ”, u’, u ”) (vs. with two long terminal setae (tc’ϛ, tc ” ϛ) and two ventral setae (u’, u ”) in Cheletogenes). The new genus is also similar to Prosocheyla in having palpal tibial claw with more than three teeth; dorsal idiosomal setae dissimilar in shape; tarsus I with three long terminal setae. The new genus differs from Prosocheyla in having idiosoma of subequal length and width (vs. idiosoma distinctly longer than width in Prosocheyla); dorsal idiosomal cuticle out of shields with tubercles (vs. dorsal idiosomal cuticle out of shields without tubercles in Prosocheyla); tarsus I without seta vs (vs. tarsus I with seta vs in Prosocheyla); palptibia with characteristic flat anteromedian flange (vs. palptibia without flat anteromedian flange in Prosocheyla).	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFDF17396EEE9655537FFD17.taxon	etymology	Etymology. The name of the new genus is a combination of two words: prefix para and the name of closely related genus Cheletogenes, and refers to similarity of the new genus with Cheletogenes.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD817356EEE928953E6F83E.taxon	description	(Figures 21 – 25) Description. Female (n = 2). Length of idiosoma 225 (255), width 235 (255). Dorsum (Figs 21 A, 24, 25 B – D). Prodorsal shield with four pairs of lateral fan-shaped setae (vi, ve, si, se) and six pairs of dorsocentral dendrite-shaped setae (Fig. 25 B); hysterosomal shield with five pairs of fan-shaped and four pairs of dendrite-shaped setae (Figs 25 C, D). Setae c 2 located on separate platelets; one pair of fan-shaped setae situated posteriad hysterosomal shield. Dorsal shields ornamented with very fine striae. Lyrifissures im and ip not evident. Soft cuticle out of shields striated and with distinct tubercles (Figs 25 C, D). Venter (Fig. 21 B). Idiosomal venter with three pairs of intercoxal (1 a, 3 a, 4 a), three pairs of aggenital (ag 1 – ag 3), two pairs of genital (g 1, g 2), and three pairs of pseudanal setae (ps 1 – ps 3); coxisternal fields I with two setae (1 b, 1 c), coxisternal fields II with one seta (2 c), coxisternal fields III with two setae (3 b, 3 c), and coxisternal fields IV with two setae (4 b, 4 c). Setae 3 b and 4 b and one pair of setae posteriad anal opening barbed, fan-shaped; other ventral setae filiform, smooth; at least setae ps 1 bifurcated. Ventral soft cuticle with smooth striae and only posteriad anal opening with tubercles as on dorsal side. Lyrifissures ih located laterad anal opening. With two pairs of smooth elongate cuticular areas posteriad coxisternal fields II and laterad setae 3 a. Gnathosoma (Figs 22, 25 A). Protegmen with fine longitudinal striae; tegmen with characteristic ornamentation as on Figure 25 A. Peritremes with 5 - 6 pairs of segments. Palpal supracoxal setae (ep) hidden under lateral parts of peritremes. Palpal femur and genu fused laterally. Palpfemur with three setae, one fan-shaped dorsal (d) and two smooth, filiform ventral (v’, v ”); palpgenu with two setae, one fan-shaped dorsal (d) and broadly lanceolate lateral (l ”); palptibia with three smooth and pointed setae (d; l’, l ”), seta d situated near anterior margin of flat anteromedian flange; setae d on femur and genu situated on short protuberances. Tibial claw with 7 processes. Tarsus with two comb-like setae (acm, sul), two sickle-like eupathidia (ul’ϛ, ul ” ϛ) and one weakly clavate solenidion (ω); inner comb-like seta (acm) with 12 projections; outer comb-like seta (sul) with 13 projections. Adoral setae smooth, pointed; ao 1 slightly shorter than ao 2. Subcapitulum finely punctate, with one pair of long filiform setae n. Legs (Fig. 23). Lengths of legs: leg I 205 (200), leg II 140 (135), leg III 150 (145), leg IV 150 (145). Leg I (Figs 23 A, A’). Tarsus without pretarsus, with short solenidion ω 13 (11) situated on prominent nipple; setae ft and vs absent; with three blunt-tipped eupathidia (tc’ϛ, tc ” ϛ, p’ϛ); (tc) as long as leg I, p’ two times shorter than (tc); tarsus with a pair of ventrodistal smooth and pointed short unguinal setae (u’, u ”) and short, weakly barbed and blunt-tipped p ” (Fig. 23 A’). Tibia with two fan-shaped setae (d, l ”), one lanceolate setae (l ”), one smooth and pointed (v ”), and tiny club-shaped dorsodistal solenidion φ 2 (2); genu with two fan-shaped setae (d, l’) and short weakly clavate dorsodistal seta k 2 (2) situated in shallow depression; femur with one fan-shaped seta (d) and one broadly lanceolate setae (v’); trochanter with one broadly lanceolate seta (v’); leg supracoxal seta (el) weakly clavate, similar in shape to seta k on genu, situated dorsomesad trochanter and usually covered by lateral margins of idiosomal soft cuticle. Leg II (Fig. 23 B). Tarsus with three smooth pointed setae (tc’, tc ”, vs), two weakly barbed, curved and slightly thickened setae (a), two filiform pointed and with long barbs unguinal setae (u’, u ”), and lateral baculiform solenidion ω 9 (8); tibia with two fan-shaped setae (d, l ”), one lanceolate seta (v’), and one filiform smooth and pointed seta (v ”); genu with two fan-shaped setae (d, l’); femur with one dorsal fan-shaped seta (d) and one ventral lanceolate seta (v ”); trochanter with one broadly lanceolate seta (v’). Leg III (Fig. 23 C). Tarsus with three smooth pointed setae (tc’, tc ”, vs), two weakly barbed, curved and slightly thickened setae (a), and wo filiform pointed and with long barbs unguinal setae (u’, u ”); tibia with one fan-shaped seta (d), two broadly lanceolate setae (v’, l ”), and one filiform smooth and pointed seta (v ”); genu with two fan-shaped setae (d, l’); femur with two fan-shaped setae (d, v’); trochanter with two fan-shaped setae (l’, v’). Leg IV (Fig. 23 D). Tarsus with three smooth pointed setae (tc’, tc ”, vs), two weakly barbed, curved and slightly thickened setae (a), and wo filiform pointed and with long barbs unguinal setae (u’, u ”); tibia with one fan-shaped seta (d), two broadly lanceolate seta (v’, l ”), and one filiform smooth and pointed seta (v ”); genu with two fan-shaped seta (d, l’); femur with two fan-shaped seta (d, v’); trochanter with one broadly lanceolate seta (v’). Male and immatures unknown.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD817356EEE928953E6F83E.taxon	materials_examined	Type material. Female holotype, slide ST 20215, Vietnam, Cat Tien National Park, soil (0 - 10 cm), 11 ° 23 ’ 51.1 ” N 107 ° 22 ’ 28.8 ” E, 2. II. 2015, collected by S. M. Tsurikov; paratypes: 1 female same locality and collector, litter, 3. II. 2015. Type deposition. The holotype is deposited in the collection of the Zoological Institute of RAS, St, Petersburg, Russia, the paratype is deposited in the acarological collection of the Museum of Zoology, University of Tyumen, Tyumen, Russia.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD817356EEE928953E6F83E.taxon	etymology	Etymology. The name of the new species is derived from Latin mirabilis meaning wonderful.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD517346EEE91FE527CFC34.taxon	distribution	This species is widely distributed. It was recorded from Algeria, Australia, Canada, China, DR Congo, Egypt, Galapagos Isl., Iran, Israel, Japan, Pakistan, Panama, Philippines, Taiwan, Türkiye and USA (Beron 2021; Doğan 2022). This is the first record of Ch. bakeri from Vietnam.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD517346EEE91FE527CFC34.taxon	materials_examined	Material examined. 26 females, 1 larva, 5 TN, Vietnam, Cat Tien National Park, soil (0 – 10 cm), 11 ° 23 ’ 51.1 ” N 107 ° 22 ’ 28.8 ” E, 2 – 3. II. 2015, collected by S. M. Tsurikov; 7 females, 1 L, 3 PN, 6 TN, Cat Tien National Park, soil (0 – 10 cm), 11 ° 26 ’ 28.9 ” N 107 ° 24 ’ 00.9 ” E, 4. II. 2015, collected by S. M. Tsurikov; 2 females, Vietnam, Cat Tien National Park, litter, 11 ° 25 ’ 43.3 ” N 107 ° 25 ’ 38.0 ” E, 22. XII. 2014, collected by S. M. Tsurikov; 4 females, Vietnam, Cat Tien National Park, bark of Ficus sp., 11 ° 26 ’ 00.6 ” N 107 ° 25 ’ 26.4 ” E, 16. I. 2015, collected by S. M. Tsurikov.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD517346EEE93AF527DFAB2.taxon	distribution	This species distributed in Southeast Asia. It was recorded from China, Malaysia, and Taiwan (Beron 2021). This is the first record of Ch. chui from Vietnam.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD517346EEE93AF527DFAB2.taxon	materials_examined	Material examined. 2 females, Vietnam, Cat Tien National Park, on Dipterocarpus alatus; bark on a tree trunk at the height of 1 m; 11 ° 26 ′ 34.64 ′′ N, 107 ° 26 ′ 06.67 ′′ E; 20. XI. 2022 – 10. XII. 2022, collected by V. M. Salavatulin.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD517346EEE952E5412F9D0.taxon	distribution	This species widely distributed. It was recorded from Peru, The Philippines, and USA (Hawaii) (Beron 2021). This is the first record of Ch. gracilis from Vietnam.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD517346EEE952E5412F9D0.taxon	materials_examined	Material examined. 14 females, 4 TN, Vietnam, Cat Tien National Park, soil (0 – 10 cm) and litter, 11 ° 23 ’ 51.1 ” N 107 ° 22 ’ 28.8 ” E, 2 – 3. II. 2015, collected by S. M. Tsurikov.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD517346EEE90AC547CFE82.taxon	type_taxon	Type species: Paracheyletia bakeri Ehara, 1962, by original designation.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD517346EEE96B354BCF8A3.taxon	type_taxon	Type species: Tutacheyla robusta Corpuz-Raros, 1972, by original designation.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD517376EEE971C568BFE4B.taxon	materials_examined	Material examined. 3 females, 2 males, Vietnam, Cat Tien National Park, on Dipterocarpus alatus; crown, branches at the height of 20 – 25 m; 11 ° 26 ′ 35.11 ′′ N 107 ° 26 ′ 01.38 ′′ E; 20. XI. 2022 – 10. XII. 2022, collected by V. M. Salavatulin; 3 females, Vietnam, Cat Tien National Park, on Dipterocarpus alatus; crown, branches at the height of 20 – 25 m; 11 ° 26 ′ 30.60 ′′ N 107 ° 25 ′ 56.15 ′′ E; 20. XI. 2022 – 10. XII. 2022, collected by V. M. Salavatulin.	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
853987D1FFD517376EEE971C568BFE4B.taxon	discussion	Remarks. Beron (2021) listed Tutacheyla buruensis (Thewke, 1980) as a junior synonym of T. robusta. However, Corpuz-Raros (1988) separated these two species based on the number and shape of dorsal idiosomal setae. In this paper we are not accepted the synonymy of T. buruensis and T. robusta and follow the opinion of Corpuz-Raros (1988).	en	Khaustov, Alexander A., Salavatulin, Vladimir M., Tsurikov, Sergey M., Thinh, Nguyen Van, Khaustov, Vladimir A. (2024): Free-living predatory cheyletid mites (Acariformes: Cheyletidae) from Cat Tien National Park, Vietnam. Zootaxa 5556 (1): 268-295, DOI: 10.11646/zootaxa.5556.1.20, URL: https://doi.org/10.11646/zootaxa.5556.1.20
