Additions to the oribatid mite fauna of Vietnam, with the description of a new species of Peloribates (Acari, Oribatida)

Толық мәтін

Although the oribatid mites (Acari, Oribatida) of Vietnam had previously been insufficiently studied (Ermilov, 2015; Corpuz-Raros, Ermilov, 2020), in recent years this situation is starting to change (e. g., Ermilov, Salavatulin, 2022, 2023; Salavatulin et al., 2022).

This work is based on materials collected from a Shorea dipterocarp forest in the Daklak Province, Southern Vietnam. The main goal of the paper is to present a list of all identified taxa, including new records, and to describe one new species belonging to the genus Peloribates Berlese 1908 (nominate subgenus).

The genus Peloribates was proposed by Berlese (1908), with Oribata peloptoides Berlese 1888 as type species. The genus comprises three subgenera and 96 species (P. (Peloribates) Berlese 1908 – 92 species), P. (Aokibates) Mahunka 1988 – one species) and P. (Peloribatodes) Mahunka 2011 – 3 species), which have a worldwide distribution except for the Antarctic region (Subías, 2022, online version 2023; also, see Ermilov et al., 2019, 2021; Ermilov, Starý, 2020). Prior to this study, 12 species/subspecies of P. (Peloribates) and one species of P. (Aokibates) have been recorded from Vietnam (Corpuz-Raros, Ermilov, 2020): P. (P.) barbatus Aoki 1977, P. (P.) gressitti Balogh et Mahunka 1967, P. (P.) guttatoides Hammer 1979, P. (P.) guttatus Hammer 1979, P. (P.) kaszabi Mahunka 1988, P. (P.) paraguayensis Balogh et Mahunka 1981, P. (P.) pseudoporosus Balogh et Mahunka 1967, P. (P.) rangiroaensis rangiroaensis Hammer 1972, P. (P.) ratubakensis Hammer 1979, P. (P.) spiniformis Ermilov et Anichkin 2011, P. (P.) stellatus Balogh et Mahunka 1967, P. (P.) tatyanae Ermilov et Anichkin 2014, and P. (A.) yoshii (Mahunka 1988). The additional goals of the paper are to present a new generic diagnosis of Peloribates and to provide an identification key to the known representatives of the aforementioned genus from Vietnam.

METHODS

Observation  and  documentation. For measurement and illustration, specimens were mounted in lactic acid on temporary cavity slides; all measurements are in micrometers (µm); body length was measured in lateral view, from the tip of the rostrum to the posterior edge of the notogaster; notogastral width refers to the maximum in dorsal aspect; setal lengths were measured perpendicular to their long axes, accounting for curvature. Formulas for leg setation are given in parentheses according to the sequence trochanter-femur-genu-tibia-tarsus (famulus included); formulas for leg solenidia are given in square brackets, according to the sequence genu-tibia-tarsus. Drawings were made with a camera lucida using a Leica DM 2500 transmission light microscope.

Terminology. Morphological terminology used in this paper mostly follows that of papers on Peloribates (e. g., Ermilov et al., 2021; Ermilov, Martens, 2024); also, Norton (1977) for leg setal nomenclature and Norton and Behan-Pelletier (2009) for overview are used.

Abbreviations and notations. Prodorsum: rb = rostral bulge; rc = rostral carina; lam = lamella; slam = sublamella; Al = sublamellar porose area; tu = tutorium; ro, le, in, bs, ex = rostral, lamellar, interlamellar, bothridial, and exobothridial setae, respectively; D = dorsophragma; P = pleurophragma. Notogaster: c, da, la, dm, lm, dp, lp, h, p = notogastral setae; Sa, S1, S2, S3 = saccules; ia, im, ip, ih, ips = lyrifissures; gla = opisthonotal gland opening. Gnathosoma: a, m, h = subcapitular setae; or = adoral seta; acm = palp seta; ω = palp solenidion; cha, chb = cheliceral setae. Epimeral and lateral podosomal regions: 1a, 1b, 1c, 2a, 3a, 3b, 3c, 4a, 4b, 4c = epimeral setae; PdI, PdII = pedotecta I and II, respectively; dis = discidium; cir = circumpedal carina. Anogenital region: g, ag, an, ad = genital, aggenital, anal, and adanal setae, respectively; iad = adanal lyrifissure; po = preanal organ. Legs: Tr, Fe, Ge, Ti, Ta = trochanter, femur, genu, tibia, and tarsus, respectively; pa = porose area; ω, σ, φ = solenidia; ɛ = famulus; d, l, v, ev, bv, ft, tc, it, p, u, a, s, pv, pl = setae.

LIST OF IDENTIFIED TAXA

The distribution of the species is mostly taken from Subías (2022, online version 2023); ptyctimous mites are not included.

• Epilohmanniidae

• Epilohmannia minuta pacifica Aoki 1965: 2 ex. Distribution: Tropical, Southern Palaearctic.

• Malaconothridae

• Malaconothrus monodactylus (Michael 1888): 3 ex. Distribution: Holarctic, Neotropical, Madagascar. New record of the species in the Oriental region.
• Tyrphonothrus repetitus (Subías 2004): 2 ex. Distribution: Southeast China. New record of the species in Vietnam.

• Crotoniidae

• Platynothrus peltifer (Koch 1839): 9 ex. Distribution: Semicosmopolitan. New record of the species in Vietnam.

• Trhypochthoniidae

• Trhypochthoniellus longisetus (Berlese 1904): 1 ex. Distribution: Cosmopolitan.

• Nanhermanniidae

• Nanhermannia (Nanhermannia) thaiensis Aoki 1965: 6 ex. Distribution: Oriental.
• Nanhermannia (Nippohermannia) parallela Aoki 1961: 2 ex. Distribution: Eastern Palearctic, Caucasus, Oriental. New record of the species in Vietnam.
• Masthermannia mammillaris (Berlese 1904): 1 ex. Distribution: Tropical.

• Hermanniidae

• Phyllhermannia similis Balogh et Mahunka 1967: 2 ex. Distribution: Oriental.

• Hermanniellidae

• Hermanniella aristosa Aoki 1965: 6 ex. Distribution: Eastern Palaearctic, Oriental, Australasian.
• Hermanniella thani Mahunka 1987: 2 ex. Distribution: Vietnam.

• Cepheusidae

• Sadocepheus sp.: 1 ex.

• Eremulidae

• Mahunkana bifurcata (Mahunka 1987): 1 ex. Distribution: Vietnam.

• Damaeolidae

• Fosseremus laciniatus (Berlese 1905): 3 ex. Distribution: Cosmopolitan.

• Oppiidae

• Arcoppia fenestralis orientalis Balogh et P. Balogh 1986: 1 ex. Distribution: New Guinea, Oriental.
• Arcoppia robustia (Berlese 1913): 1 ex. Distribution: Oriental.
• Lasiobelba sp.: 1 ex.
• Oppiella nova (Oudemans 1902): 4 ex. Distribution: Cosmopolitan.
• Oxyoppia (Oxyoppiella) polynesia (Hammer 1972): 4 ex. Distribution: Tropical.

• Suctobelbidae

• Suctobelbella (Flagrosuctobelba) semiplumosa tahitiensis (Hammer 1972): 3 ex. Distribution: Oriental, Australasian, Afrotropical. New record of the subspecies in Vietnam.

• Otocepheidae

• Dolicheremaeus baloghi Aoki 1967: 6 ex. Distribution: Eastern Palaearctic, Oriental.
• Dolicheremaeus dwalteri Ermilov et Anichkin 2014: 4 ex. Distribution: Vietnam.
• Dolicheremaeus cf. oginoi (Aoki 1965): 2 ex. Distribution: Oriental.
• Otocepheus (Acrotocepheus) duplicornutus discrepans (Balogh et Mahunka 1967): 2 ex. Distribution: Vietnam.

• Carabodidae

• Diplobodes sp.: 6 ex.
• Yoshiobodes nakatamarii (Aoki 1973): 2 ex. Distribution: Oriental and Eastern Palaearctic.

• Tectocepheidae

• Tectocepheus velatus (Michael 1880): 6 ex. Distribution: Cosmopolitan.

• Licneremaeidae

• Licneremaeus polygonalis Hammer 1971: 8 ex. Distribution: Australasian, Vietnam, Madagascar.

• Achipteriidae

• Parachipteria punctata (Nicolet 1855): 2 ex. Distribution: Holarctic, Santa Helena. New record of the species in the Oriental region.

• Ceratozetidae

• Ceratozetes sp.: 1 ex.

• Haplozetidae

• Acutozetes sp.: 2 ex.
• Peloribates kaszabi Mahunka 1988: 14 ex. Distribution: Oriental.
• Peloribates parapalawanus sp. n.: 3 ex. Distribution: Vietnam.
• Peloribates rangiroaensis rangiroaensis Hammer 1972: 1 ex. Distribution: Polynesia, Oriental.
• Peloribates sp.: 1 ex.
• Perxylobates crassisetosus Ermilov et Anichkin 2011: 1 ex. Distribution: Vietnam.
• Protoribates paracapucinus (Mahunka 1988): 26 ex. Distribution: Tropical, Subtropical.
• Rostrozetes ovulum (Berlese 1908): 11 ex. Distribution: Tropical, Subtropical.

• Scheloribatidae

• Euscheloribates (Trischeloribates) clavatus (Mahunka 1988): 17 ex. Distribution: Vietnam.
• Euscheloribates (Trischeloribates) payatosensillus (Corpuz-Raros 1979): 1 ex. Distribution: Philippines. New record of the species in Vietnam.
• Scheloribates (Scheloribates) elegans Hammer 1958: 1 ex. Distribution: Tropical.
• Scheloribates (Bischeloribates) mahunkai Subías 2010: 1 ex. Distribution: Oriental.
• Scheloribates (Perscheloribates) sp. A: 4 ex.
• Scheloribates (Perscheloribates) sp. B: 2 ex.

• Parakalummidae

• Neoribates jacoti (Balogh et Mahunka 1967): 2 ex. Distribution: Oriental.

• Galumnidae

• Flagellozetes (Cosmogalumna) maolanensis Hu, Zheng et Yang 2023: 19 ex. Distribution: Southeast China. New record of the species in Vietnam.
• Flagellozetes (Cosmogalumna) sp.: 5 ex.
• Pergalumna intermedia intermedia Aoki 1963: 15 ex. Distribution: Southern Palaearctic and Northern Oriental. New record of the species in Vietnam.
• Pergalumna yurtaevi Ermilov et Anichkin 2011: 8 ex. Distribution: Oriental, Australasian.
• Trichogalumna subnuda Balogh et Mahunka 1967: 10 ex. Distribution: Vietnam.

• Galumnellidae

• Galumnella sp.: 1 ex.

The list includes 51 species/subspecies belonging to 37 genera and 23 families. Of these, five species and two subspecies (Tyrphonothrus repetitus, Platynothrus peltifer, Nanhermannia (Nippohermannia) parallela, Suctobelbella (Flagrosuctobelba) semiplumosa tahitiensis, Euscheloribates (Trischeloribates) payatosensillus, Pergalumna intermedia intermedia, Flagellozetes (Cosmogalumna) maolanensis) are recorded for the first time from Vietnam, and two species (Malaconothrus monodactylus, Parachipteria punctata) are recorded for the first time from the Oriental region. Of the 41 species (except 10 unidentified species), eight species are known only from Vietnam, 10 are Oriental, five are Cosmopolitan/Semicosmopolitan, and 18 have broad distributions (more than one geographical region).

TAXONOMY

Genus Peloribates Berlese 1908. Type species: Oribata peloptoides Berlese 1888.

Generic diagnosis. Body size: length about 240–780. Integument: Body frequently with foveolate ornamentation; rarely, body partially reticulate/striate/tuberculate/rugose or without heavy ornamentation/sculpturing. Prodorsum: Rostrum narrowly or broadly rounded. Lamella medium-sized, narrow, without distal cusp, submarginal; translamella absent; prolamella absent (rarely present); sublamella and sublamellar porose area present; tutorium ridge-like, without or with small triangular tip. Rostral, lamellar and interlamellar setae well developed, setiform/rod-like/bacilliform/subflagellate/swollen distally/phylliform; ro inserted dorsolaterally or laterally on rostrum, le on end of lamella, in in interbothridial region; bothridial seta clavate/fusiform/lanceolate/globular. Bothridium cup-shaped; lateral scale absent or present. Dorsosejugal porose area absent or present. Dorsophragma elongate longitudinally. Notogaster: Anterior margin of notogaster distinct, convex medially. Pteromorph large, subtriangular, movable, curved ventrad. Octotaxic system with four pairs of saccules. Fourteen (rarely, thirteen) pairs of short/medium-sized/long (rarely, extremely short or represented by alveoli), setiform/rod-like/bacilliform/subflagellate/swollen distally/phylliform notogastral setae. Gnathosoma. Subcapitulum diarthric. Palp with setation: 0–2–1–3–9(+ω); solenidion of palptarsus connected to eupathidium. Axillary saccule absent. Chelicera chelate-dentate, with two setae. Epimeral and lateral podosomal regions: Epimeral setal formula: 3–1–3–3(or 2). Pedotecta I and II represented by small lamina. Genal tooth absent. Custodium absent or present. Discidium and circumpedal carina present. Humeral porose areas absent. Anogenital region: Four or five pairs of genital, one or three pairs of aggenital, two pairs of anal and three pairs of adanal setae. Adanal lyrifissure located close and lateral to anal plate. Marginal porose area absent or present. Legs: Mono- or heterotridactylous, or legs I–III monodactylous versus leg IV bidactylous. Tarsi I– IV, tibiae I–IV, femora I–IV, and trochanters III, IV with porose area.

Remarks. The subgenus Peloribates (Aokibates) Mahunka 1988 (type species: Aokibates yoshii Mahunka 1988) is characterized by the presence of one claw on legs I–III and two claws on leg IV (see Mahunka, 1988a) (versus all legs monodactylous or tridactylous in P. (Peloribates) and tridactylous in P. (Peloribatodes)).

The subgenus P. (Peloribatodes) Mahunka 2011 (type species: Peloribates (Peloribatodes) incompatibilis Mahunka 2011) is characterized by the simultaneous presence of four pairs of genital setae and an anterodorsal tooth on leg tibia II (see Mahunka, 2011) (versus four pairs of genital setae and anterodorsal tooth on leg tibia II simultaneously absent in P. (Aokibates) and P. (Peloribates)). It must be noted that Ermilov et al. (2019) view its subgeneric status as problematic.

Subías (2022, online version 2023) has supported the classification of the fourth subgenus within Peloribates, P. (Tentaculozetes) Balogh 1970. At the same time, Ermilov et al. (2021) have synonymized this subgenus with P. (Peloribates).

Peloribates (Peloribates) parapalawanus. Ermilov sp. n. (Figs 1, 2)

Fig. 1. Peloribates (Peloribates) parapalawanus Ermilov sp. n., adult (legs and some notogastral setae not shown): a – dorsal view, b – ventral view, c – right lateral view. Scale bar 100 µm.

Fig. 2. Peloribates (Peloribates) parapalawanus Ermilov sp. n., adult: a – posterior view (part of left half not shown); b – anterior part of prodorsum, anterodorsal view; c – leg I, right, antiaxial view; d – leg II (trochanter and tarsus not shown), left, antiaxial view; e – leg III (tarsus not shown), right, antiaxial view; f – leg IV, right, antiaxial view. Scale bars, μm: a – 100, b – 20, c–f – 50.

Type material. Holotype (♀) and two paratypes (2♂♂): Vietnam, Daklak Province, ca. 25 km SSW of Buon Ma Thuot, Dak Linh, 500 m a. s. l., sieved dry litter in a Shorea dipterocarp forest, Winkler extraction, 28–29.IV.1986 (L. Medvedev, S. Golovatch et al.).

The holotype is deposited in the collection of the Senckenberg Museum of Natural History, Görlitz, Germany; two paratypes are deposited in the collection of the Tyumen State University Museum of Zoology, Tyumen, Russia. All specimens are preserved in 70% solution of ethanol with a drop of glycerol.

Diagnosis. Body length: 525–600. Prodorsum, notogaster, pteromorph, and ventral plate foveolate. Rostrum protruding, narrowly rounded. Tutorium long. Rostral, lamellar, interlamellar and notogastral setae long, rod-like, barbed; bothridial seta long, lanceolate, barbed. All notogastral saccules with elongate pear-shaped channel. Custodium absent. Epimeral and anogenital setae (except medium-sized, rod-like adanal seta ad₁) comparatively short, setiform, slightly barbed; ad₁ posterior to ad₂. All leg tarsi with one claw.

Description. Measurements. Species large. Body length: 600 (holotype), 525, 540 (paratypes); notogaster width: 450 (holotype), 420, 435 (paratypes).

Integument. Body color dark brown. Body covered by gel-like cerotegument with microgranulate components. Cuticle of prodorsum, notogaster, pteromorph, ventral plate, leg trochanter III, as well as femora I, II and IV with comparatively large foveolae (distance between foveolae larger than diameter of foveola); genital and anal plates microfoveolate; lateral side of lamella and anterodorsal part of trochanter IV slightly striate.

Prodorsum. Rostrum protruding, narrowly rounded. Lamella about 2/5 length of prodorsum; prolamella absent; sublamella slightly observable; tutorium long, ridge-like, with indistinct distal tooth. Sublamellar porose area rounded (7–11). Rostral (112–1121), lamellar (157–172) and interlamellar (157–172) setae rod-like, barbed; bothridial seta (142–157) with long stalk and short lanceolate head, barbed; exobothridial seta (34– 41) setiform, slightly barbed. Dorsosejugal porose area not observable.

Notogaster. Anterior notogastral margin convex medially. All setae (142–161) rod-like, barbed, inserted on indistinct tubercles. Four pairs of saccules with small opening and elongate pear-shaped channel. Opisthonotal gland opening and all lyrifissures distinct.

Gnathosoma. Subcapitulum size: 131–142 × 90–94; subcapitular setae (a, m: 22; h: 26–30) setiform, slightly barbed; m thinner than a and h; both adoral setae (11) setiform, barbed. Palp length: 86–94; setation: 0–2–1–3–9 (+ω); postpalpal seta (7) spiniform, roughened. Chelicera length: 135–142; setae (cha: 41–52; chb: 30– 37) setiform, barbed.

Epimeral and lateral podosomal regions. Epimeral formula: 3–1–3–3; setae (1b, 3b, 3c: 49–52; 1a, 1c, 2a, 3a: 37–41; 4a, 4b, 4c: 26–34) setiform, slightly barbed. Pedotectum II rounded distally in ventral view. Custodium absent. Discidium triangular. Circumpedal carina long, directed to pedotectum II.

Anogenital region. Anogenital formula: 5–1–2–3; adanal seta ad₁ (86–101) rod-like, slightly barbed, posterior to ad₂; genital (26–30), aggenital (37–41), anal (11–15), and adanal (ad₂: 41–52; ad₃: 19–22) setae setiform, slightly barbed. Adanal lyrifissure distinct. Marginal porose area not observable.

Legs. Monodactylous; claw thick, slightly barbed on dorsal side. Genu I with lateral (antiaxial) tubercle bearing seta lʺ; genu II with dorsal tubercle; ventrodistal part of femur II with slight tooth. Dorsoparaxial porose area on femora I–IV and on trochanters III, IV, ventrodistal porose area on tibiae I–IV and proximoventral porose area on tarsi I–IV well visible. Formulas of leg setation and solenidia: I (1–5–3–4–20) [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.

Table 1. Leg setation and solenidia of adult Peloribates (Peloribates) parapalawanus Ermilov sp. n.

Notes. Roman letters refer to normal setae; Greek letters refer to solenidia (except ɛ – famulus); single quotation mark (ʹ) designates setae on the anterior and double quotation (ʺ) setae on the posterior side of a given leg segment; parentheses indicate addition of both members of a pseudosymmetrical pair.

Comparison. In the presence of monodactylous legs, rod-like prodorsal and notogastral setae, protruding rostrum, and long, lanceolate bothridial seta, P. (P.) parapalawanus sp. n. is similar to P. (P.) palawanus Corpuz-Raros 1981 from the Oriental region (see Corpuz-Raros, 1981). At the same time, P. (P.) parapalawanus sp. n. differs from P. (P.) palawanus in the ornamentation of the prodorsum, the pteromorph, and the ventral plate (foveolate versus not foveolate).

Etymology. The species name parapalawanus refers to the similarity between the new species and Peloribates palawanus Corpuz-Raros 1981.

KEY TO THE KNOWN SPECIES OF PELORIBATES FROM VIETNAM

1. Leg tarsi I–III monodactylous, leg tarsus IV bidactylous; body length: 272–297 – Peloribates (Aokibates) yoshii (Mahunka 1988) (see Mahunka, 1988a). Distribution: Oriental, Mexico.

• All leg tarsi monodactylous or tridactylous – 2

2. All leg tarsi monodactylous; body length: 525–600 – Peloribates (Peloribates) parapalawanus Ermilov sp. n. Distribution: Vietnam.

• All leg tarsi tridactylous – 3

3. All notogastral setae minute, not longer than diameter of bothridium – 4

• All notogastral setae medium-sized or long, distinctly longer than diameter of bothridium – 5

4. Interlamellar seta dilated mediodistally; bothridial seta clavate, rounded distally; prodorsum, notogaster and anogenital region foveolate; body length: 332– 348 – Peloribates (Peloribates) spiniformis Ermilov et Anichkin 2011 (see Ermilov, Anichkin, 2011). Distribution: Vietnam.

• Interlamellar seta setiform; bothridial seta lanceolate, with setiform apex; prodorsum, notogaster and anogenital region not foveolate; body length: 240 – Peloribates (Peloribates) pseudoporosus Balogh et Mahunka 1967 (see Balogh, Mahunka, 1967). Distribution: Vietnam.

5. Interlamellar and some notogastral (e. g., lm, lp, h₁-h₃, p₁) setae subflagellate; notogaster and ventral plate striate; body length: 547–597 – Peloribates (Peloribates) tatyanae Ermilov et Anichkin 2014 (see Ermilov, Anichkin, 2014). Distribution: Vietnam.

• Interlamellar and all notogastral setae not subflagellate; notogaster and ventral plate foveolate – 6

6. Interlamellar and all or some notogastral setae with swollen tip – 7

• Interlamellar and all notogastral setae without swollen tip – 8

7. 7 Foveolae of interlamellar region and centrodorsal region of notogaster similar in size; body length: 340 – Peloribates (Peloribates) guttatoides Hammer 1979 (see Hammer, 1979). Distribution: Oriental.

• Foveolae of interlamellar region distinctly smaller than foveolae of centrodorsal region of notogaster; body length: 330 – Peloribates (Peloribates) guttatus Hammer 1979 (see Hammer, 1979). Distribution: Oriental.

8. Notogastral setae da and dm length about half the distance between their insertions – 9

• Notogastral setae da and dm distinctly longer than the distance between their insertions or about of distance between their insertions –11

9. Foveolae of interlamellar region distinctly larger than foveolae of centrodorsal region of notogaster; body length: 330–415 – Peloribates (Peloribates) barbatus Aoki 1977 (see Aoki, 1977; Kim et al., 2016). Distribution: Eastern Palaearctic, Vietnam.

• Foveolae of interlamellar region not larger than foveolae of centrodorsal region of notogaster –10

10. Foveolae of interlamellar region and centrodorsal region of notogaster small (distinctly shorter than diameter of bothridium), rounded, sparsely located; body length: 375 – Peloribates (Peloribates) rangiroaensis rangiroaensis Hammer 1972 (see Hammer, 1972). Distribution: Polynesia,

• Foveolae of interlamellar region and centrodorsal region of notogaster medium-sized (about diameter of bothridium or larger), floriform, densely located; body length: 317 – Peloribates (Peloribates) stellatus Balogh et Mahunka 1967 (see Balogh, Mahunka, 1967). Distribution: Vietnam.

11. Notogastral setae da and dm about equal to the distance between their insertions; body length: 544–549 – Peloribates (Peloribates) paraguayensis Balogh et Mahunka 1981 (see Balogh, Mahunka, 1981). Distribution: Neotropical and

• Notogastral setae da and dm distinctly longer than the distance between their insertions –12

12. Bothridial seta fusiform (head narrowed distally); body length: 342 – Peloribates (Peloribates) gressitti Balogh et Mahunka 1967 (see Balogh, Mahunka, 1967). Distribution: Oriental.

• Bothridial seta clavate (head broadly rounded distally) –13

13. Foveolae of centrodorsal region of notogaster sparsely located; body length: 620 – Peloribates (Peloribates) ratubakensis Hammer 1979 (see Hammer, 1979). Distribution: Oriental.

• Foveolae of centrodorsal region of notogaster densely located; body length: 280–324 – Peloribates (Peloribates) kaszabi Mahunka 1988 (see Mahunka, 1988). Distribution: Oriental.

ACKNOWLEDGEMENTS

I cordially thank L. Medvedev and S. Golovatch for collecting oribatid mites, D. V. Sharapov for English language editing and two anonymous reviewers for valuable comments.

FUNDING

No grants to carry out or direct this particular research were obtained.

ETHICS APPROVAL AND CONSENT TO PARTICIPATE

This work does not contain any studies involving human and animal subjects.

CONFLICT OF INTEREST

The authors of this work declare that they have no conflicts of interest.

Авторлар туралы

S. Ermilov

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Email: ermilovacari@yandex.ru

X-BIO Institute

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2. Fig. 1. Peloribates (Peloribates) parapalawanus Ermilov sp. n., adult (legs and some notogastral setae not shown): a – dorsal view, b – ventral view, c – right lateral view. Scale bar 100 µm.

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3. Fig. 2. Peloribates (Peloribates) parapalawanus Ermilov sp. n., adult: a – posterior view (part of left half not shown); b – anterior part of prodorsum, anterodorsal view; c – leg I, right, antiaxial view; d – leg II (trochanter and tarsus not shown), left, antiaxial view; e – leg III (tarsus not shown), right, antiaxial view; f – leg IV, right, antiaxial view. Scale bars, μm: a – 100, b – 20, c–f – 50.

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