(Acari, Oribatida) of Taiwan - BioOne

Systematic & Applied Acarology 22(6): 824–840 (2017) http://doi.org/10.11158/saa.22.6.8 Article

ISSN 1362-1971 (print) ISSN 2056-6069 (online)

http://zoobank.org/urn:lsid:zoobank.org:pub:C570E9A7-77DD-4E49-B44F-A1527042CBE8

New faunistic and taxonomic data on oribatid mites (Acari, Oribatida) of Taiwan SERGEY G. ERMILOV1* & JHIH-RONG LIAO2 1

Tyumen State University, Tyumen, Russia. E-mail: [email protected] National Taiwan University, Taipei, Taiwan. E-mail: [email protected] *Corresponding author

2

Abstract The present study is based on oribatid mite materials (Acari, Oribatida) collected from Taiwan in 2009–2010. A list of identified taxa, including 34 species from 30 genera and 21 families, is presented; of these, the subspecies Tectocepheus velatus sarekensis, the species Suctobelbella (Flagrosuctobelba) cf. elegantula, Paralamellobates misella, Protoribates paracapucinus, Perscheloribates nodosus and Scheloribates (Bischeloribates) dalawaeus, the subgenera Uracrobates (Parauracrobates) and Scheloribates (Bischeloribates), and the genera Scapheremaeus and Brassiella are recorded in the fauna of Taiwan for the first time. The species Camisia hamulifera and Fissicepheus defectus are recorded in the Oriental region for the first time. Two new species belonging to the genera Galumna (Galumnidae) and Uracrobates (Mochlozetidae) are described. Galumna (Galumna) tsengi sp. nov. differs from G. (G.) makilingensis Ermilov, Corpuz-Raros & Tolstikov, 2014 by the clavate heads of the bothridial setae, slightly dilated porose areas Aa in posterolateral parts, not boomerang shaped, and by the erect interlamellar setae, which are shorter than the lamellar setae. Uracrobates (Parauracrobates) newtaipeiensis sp. nov. differs from U. (P.) truncatus Ermilov & Martens, 2015 by the absence of well-developed lateral teeth on the lamellar cusps, foveolate notogaster and anogenital region and the medium length of the anal and adanal setae. Key words: mites, Taiwan, fauna, list of taxa, record, new species, systematics, Galumna, Uracrobates

Introduction At present, the oribatid mite fauna (Acari, Oribatida) of Taiwan is poorly investigated (e.g. Kishida 1921; Tseng 1982, 1984; Aoki 1990, 1991, 1995; Ohkubo 1995; Chu & Aoki 1997; Bayartogtokh et al. 2009). Our work is based on materials collected during 2009–2010 and received from the collection of the National Taiwan University. The primary goal of the paper is to present a list of the identified taxa, including data on new records. In the course of taxonomic identification, we found two new species, one belonging to the genus Galumna Heyden, 1826 (family Galumnidae), the nominative subgenus, and the other to the genus Uracrobates Balogh & Mahunka, 1967 (Mochlozetidae), to the subgenus Uracrobates (Parauracrobates) Ermilov & Martens, 2015. The secondary goal of the paper is to describe and illustrate these species. The genus Galumna includes seven subgenera and 196 species (Subías 2004, updated 2017). The subgenus Galumna (Galumna) is the largest, comprising about 175 species (Subías 2004, updated 2017; Ermilov & Starý 2017a) and has a cosmopolitan distribution in general (Subías 2004, updated 2017). The subgeneric diagnosis was presented by Ermilov et al. (2013). An identification key to known species of the subgenus from the Oriental region (including Taiwan) was provided by Ermilov & Starý (2017a).

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The genus Uracrobates includes two subgenera and five species (Subías 2004, updated 2017). The subgenus Uracrobates (Parauracrobates) comprises only the type species, U. (P.) truncatus Ermilov & Martens, 2015, which was recorded from Nepal (Ermilov & Martens 2015). The subgeneric diagnosis and identification key to known species of Uracrobates including representative of Uracrobates (Parauracrobates) were presented by Ermilov & Martens (2015).

Material and methods Oribatid mites were collected from 25 localities of Taiwan: #9—Kaohsiung City, Qiaotou District, Qiaotou Sugar Factory, 22°45'27.68"N, 120°18'50.8"E, 14 m a.s.l., leaves on Tabebuia chrysantha (Bignoniaceae), 7.VIII.2009 (collected by H.T. Fang & Y.H. Chiang). #10—Yilan County, Su'ao Township, Dong'ao, 24°31'11.16"N, 121°50'10.9"E, 16 m a.s.l., leaves on Scoparia dulcis, 5.VIII.2009 (collected by H.T. Fang & Y.H. Chiang). #50—Nantou County, Puli Township, leaves on Synsepalum dulcificum, 26.VIII.2009 (collected by H.T. Fang, Y.H. Chiang & J.R. Liao). #52—Nantou County, Puli Township, leaves on Bambusa oldhamii, 26.VIII.2009 (collected by H.T. Fang, Y.H. Chiang & J.R. Liao). #61—New Taipei City, Xindian District, Xiaocukeng, 24°55'55.69"N, 121°33'54.64"E, 248 m a.s.l., leaves on Prunus campanulata, 1.IX.2009 (collected by J.R. Liao). #63—New Taipei City, Xindian District, Xiaocukeng, 24°55'55.69"N, 121°33'54.64"E, 248 m a.s.l., leaves on Bambusa oldhamii, 1.IX.2009 (collected by J.R. Liao). #64—New Taipei City, Xindian District, Xiaocukeng, 24°55'55.69"N, 121°33'54.64"E, 248 m a.s.l., leaves on Musa paradisiaca, 1.IX.2009 (collected by J.R. Liao). #87—Nantou County, Lugu Township, Xitou, Restaurant, 23°40'35.73"N, 120°47'43.50"E, 1095 m a.s.l., leaves on Ficus erecta, 11.IX.2009 (collected by C.H. Hsieh, H.T. Fang & J.R. Liao). #227, #230, #232, #234, #237—Yilan County, Yuanshan Township, Fushan Botanical Garden, 24°45.724'N, 121°35.098'E, 679 m a.s.l., soil, 21.XI.2009 (collected by J.R. Liao). #231—Yilan County, Yuanshan Township, Fushan Botanical Garden, 24°45.724'N, 121°35.098'E, 679 m a.s.l., leaves on Castanopsis indica, 21.XI.2009 (collected by J.R. Liao). #242—New Taipei City, Sanzhi District, Erzihping Trail, lichen, 22.XI.2009 (collected by J.R. Liao). #248, #250—New Taipei City, Gongliao District, Caoling Historic Trail, 24°59.668' N, 121°55.599'E, 132 m a.s.l., leaves on Ficus septica, 21.XI.2009 (collected by Y.H. Chiang & J.R. Liao). #275—Hsinchu County, Wufeng Township, Nanqing Highway, 24°34.272'N, 121°05.842'E, 680 m a.s.l., leaves on Cunninghamia konishii, 20.I.2010 (collected by Y.H. Chiang & J.R. Liao). #285—Hsinchu County, Wufeng Township, Dalu Forest Road, 24°32.061'N, 121°07.11'E, 1570 m a.s.l., leaves on Defoliation, 20.I.2010 (collected by Y.H. Chiang & J.R. Liao). #289—Hsinchu County, Wufeng Township, Dalu Forest Road, 24°32.061'N, 121°07.11'E, 1570 m a.s.l., leaves on Defoliation, 20.I.2010 (collected by Y.H. Chiang & J.R. Liao). #296—Hsinchu County, Wufeng Township, Qingshi Road, 24°33.265'N, 121°06.784'E, 1069 m a.s.l., soil, 20.I.2010 (collected by Y.H. Chiang & J.R. Liao). #319—New Taipei City, Xindian District, Xiaocukeng Road, 24°56.255' N, 121°32.478'E, 38 m a.s.l., leaves on Bidens pilosa, 27.I.2010 (collected by J.R. Liao). #320—New Taipei City, Xindian District, Zhitan Elementary School, 24°56.266'N, 121°31.910'E, 56 m a.s.l., leaves on Lantana camara, 27.I.2010 (collected by J.R. Liao). 2017

ERMILOV & LIAO: NEW FAUNISTIC AND TAXONOMIC DATA ON ORIBATID MITES OF TAIWAN 825

#323—New Taipei City, Xindian District, Zhitan Elementary School, 24°56.266'N, 121°31.910'E, 56 m a.s.l., leaves on Morus alba, 27.I.2010 (collected by J.R. Liao). #324—New Taipei City, Xindian District, Zhitan Elementary School, 24°56.266'N, 121°31.910'E, 56 m a.s.l., leaves on Ficus irisana, 27.I.2010 (collected by J.R. Liao).

Methods Specimens were mounted in lactic acid on temporary cavity slides for measurement and illustration. Body length was measured in lateral view, from the tip of the rostrum to the posterior edge of the ventral plate. Notogastral width refers to the maximum in dorsal aspect behind pteromorphs. Lengths of body setae were measured in lateral aspect. All body measurements are presented in micrometers. 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. Morphological terminology used in this paper follows that of F. Grandjean: see Travé & Vachon (1975) for references, Norton (1977) for leg setal nomenclature, and Norton & Behan–Pelletier (2009), for overview. Drawings were made with a camera lucida using a Leica transmission light microscope “Leica DM 2500”.

A list of identified taxa1 The list includes notes on localities, new records and overall known geographical distribution2. Hypochthoniidae Eohypochthonius gracilis (Jacot, 1936)3. Locality: 231. Distribution: Pantropical region. Crotoniidae Camisia hamulifera Hammer, 1961. Locality: 296. Distribution: Neotropical, Ethiopian and Subantarctic regions. New record of the species in the Oriental region. Nothridae Nothrus sp., additional specimens are necessary for final identification. Locality: 232. Hermanniidae Phyllhermannia sp., additional specimens are necessary for final identification. Locality: 234. Neoliodidae Neoliodes sp., not identified. Locality: 242. Tectocepheidae Tectocepheus velatus sarekensis Trägårdh, 1910. Localities: 227, 232, 234, 285, 289. Distribution: Cosmopolitan. New record of the subspecies in Taiwan. Liacaridae Xenillus sp., in bad condition. Locality: 242. Peloppiidae Ceratoppia oblectatoria Tseng, 1982. Locality: 230. Distribution: Taiwan. Oppiidae Taiwanoppia subtropica Tseng, 1982. Localities: 248, 250, 323,324. Distribution: Taiwan. 1. One specimen of ptyctimous mites not identified. 2. See mostly Subías (2004, updated 2017). 3. References for original descriptions of species are not presented in the “References” section.

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Suctobelbidae Suctobelbella (Flagrosuctobelba) cf. elegantula (Hammer, 1958). Locality: 296. Distribution: Neotropical, Oriental and Holarctic regions. New record of the species in Taiwan. Otocepheidae Fissicepheus defectus Aoki, 2006. Locality: 237. Distribution: Japan. New record of the species in the Oriental region. Zetorchestidae Zetorchestes saltator Oudemans, 1915. Locality: 237. Distribution: Oriental region. Cymbaeremaeidae Scapheremaeus sp., additional specimens are necessary for final identification. Locality: 296. New record of the genus in Taiwan. Ceratozetidae Ceratozetes sp., in bad condition. Locality: 242. Punctoribatidae Paralamellobates misella (Berlese, 1910). Locality: 64. Distribution: Pantropical region. New record of the species in Taiwan. Mochlozetidae Podoribates laneus (Tseng, 1984). Locality: 296. Distribution: Taiwan. Uracrobates (Parauracrobates) newtaipeiensis sp. nov. Locality: 324. Distribution: Taiwan. New record of the subgenus in Taiwan. Unguizetes clavatus Aoki, 1967. Localities: 87, 275. Distribution: Oriental and Palearctic regions. Oribatulidae Zygoribatula vegeta Tseng, 1984. Locality: 10. Distribution: Taiwan. Zygoribatula sp., in bad condition. Locality: 9. Caloppiidae Brassiella sp., it is a new species, which will is described in another paper (in press) on a revision of the genus Brassiella. Locality: 9. New record of the genus in Taiwan. Haplozetidae Peloribates pakistanensis Hammer, 1977. Localities: 61, 237. Distribution: Palearctic and Oriental regions. Protoribates paracapucinus (Mahunka, 1988). Locality: 234. Distribution: Oriental, Palaearctic, Ethiopian, Neotropical and Australian regions. New record of the species in Taiwan. Rostrozetes ovulum (Berlese, 1908). Locality: 231. Distribution: Tropical and Subtropical region. Tuberemaeus formosanus Tseng, 1984. Locality: 61. Distribution: Taiwan, Philippines. Scheloribatidae Dometorina limpida Tseng, 1984. Localities: 50, 52. Distribution: Taiwan. Dometorina taiwanica Tseng, 1984. Localities: 81, 231, 235, 319. Distribution: Taiwan. Muliercula chiayiensis Tseng, 1984. Locality: 231. Distribution: Taiwan. Perscheloribates nodosus Corpuz-Raros, 1980. Locality: 234. Distribution: Philippines. New record of the species in Taiwan. Scheloribates papillaris Tseng, 1984. Locality: 275. Distribution: Taiwan, Vietnam. Scheloribates praeincisus praeincisus (Berlese, 1910). Localities: 231, 232. Distribution: Tropics, Holarctic region. Scheloribates (Bischeloribates) dalawaeus Corpuz-Raros, 1980. Localities: 227, 232. Distribution: Philippines. New record of the subgenus and species in Taiwan. Galumnidae Galumna tsengi sp. nov. Locality: 237. Pergalumna sp., additional specimens are necessary for final identification. Locality: 230. 2017


Remarks The list of identified oribatid mites from Taiwan included 34 species from 30 genera and 21 families. Of these, one subspecies (Tectocepheus velatus sarekensis), five species (Suctobelbella (Flagrosuctobelba) cf. elegantula, Paralamellobates misella, Protoribates paracapucinus, Perscheloribates nodosus, Scheloribates (Bischeloribates) dalawaeus), two subgenera (Uracrobates (Parauracrobates), Scheloribates (Bischeloribates)) and two genera (Scapheremaeus, Brassiella) are recorded in the fauna of this country for the first time. Two species (Camisia hamulifera, Fissicepheus defectus) are recorded in the Oriental region for the first time.

Galumna (Galumna) tsengi Ermilov & Liao sp. nov. (Figs 1–7) Diagnosis Body size: 664–713 × 531–564. Rostrum pointed. Lamellar and sublamellar lines divergent distally, L directed to lateral margins of prodorsum. Prodorsal setae well-developed, barbed, lamellar setae longer than interlamellar setae, rostral setae shortest. Bothridial setae long, clavate, barbed. Dorsosejugal suture complete. Sejugal porose areas, median pore and postanal porose area present. Four pairs of porose areas, Aa transversely oriented, near triangular, with dilated posterolateral parts, A1, A2 and A3 rounded. Lyrifissures im and opisthonotal gland openings located anterior to A2. Subcapitular setae of medium size, thin, slightly barbed. Epimeral setal formula: 1-0-1-2. Epimeral and anogenital setae short, thin, indistinctly barbed. Circumpedal carinae directed to insertions of 3b, but clearly not reaching them. Leg solenidia of tibiae IV inserted in anterior part of the segments. Description Measurements. Body length: 713 (holotype: female), 664–713 (four paratypes: two females and two males); notogaster width: 564 (holotype), 531–564 (four paratypes). No clear differences between females and males in body size. Integument. Body color brown to dark brown. Body surface microfoveolate (visible under high magnification, × 1000). Laterobasal part of prodorsum finely striate. Prodorsum (Figs 1, 3). Rostrum pointed. Lobe with projects, creating M-shaped inner excavation and inner rostral tooth (irt). Rostrophragma (rp) relatively thick. Lamellar lines (L) thickened, sublamellar lines (S) thin, both parallel, but slightly divergent distally, L directed to lateral margins of prodorsum, S curving backwards. Lateral structures N and ridges E and T well-developed. Rostral (ro, 69–73), lamellar (le, 110–114) and interlamellar (in, 94–102) setae setiform, similar in thickness, barbed. Bothridial setae (bs, 94–102) with long, smooth stalks and short, clavate, barbed heads. Exobothridial setae and their alveoli absent. Sejugal porose areas (Ad, 36–41 × 10–12) elongate oval, transversely oriented, posterior to in. Dorsophragmatic apophyses (D) represented by group of low, roughened thickenings collectively elongated longitudinally, with variable number of components. Notogaster (Figs 1, 3–5). Dorsosejugal suture complete. With 10 pairs of setal alveoli and four pairs of porose areas, Aa transversely oriented, near triangular (length 49–53), with dilated posterolateral parts, A1, A2 and A3 similar in size, rounded (24–28), Aa located close to the pteromorphal hinges, anterior to setal alveoli la. Median pore (mp) present in females and males, represented by one part, located between A2. All lyrifissures (ia, im, ip, ih, ips) distinct, im located anterior to A2, ip between setal alveoli p1 and p2, ih and ips close to each other, anterior to p3. Opisthonotal gland openings (gla) located anterior to A2.

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FIGURE 1. Galumna (Galumna) tsengi sp. nov., adult: dorsal view. Scale bar 100 μm.

Gnathosoma (Figs 2, 3). Morphology of subcapitulum, palps and chelicerae typical for most Galumnidae (e.g. Ermilov & Starý, 2017a, b). Subcapitulum size: 164–172 × 151–159. Three pairs of subcapitular setae (a, m, h) similar in length (32–36), setiform, slightly barbed. Two pairs of adoral setae (16–20) setiform, densely barbed. Length of palps: 123. Axillary saccules distinct, slightly elongated. Postpalpal setae (6) spiniform. Length of chelicerae: 205. Two cheliceral setae setiform, barbed, cha (82) longer than chb (49). Trägårdh’s organs long, elongate triangular. Epimeral and lateral podosomal regions (Figs 2, 3). Anterior tectum of epimere I smooth. Pedotecta I (Pd I) and II (Pd II) rounded in ventral view. Discidia (dis) triangular. Epimeral setal formula: 1-0-1-2. Epimeral setae setiform, thin, indistinctly barbed, 1b and 3b (32–41) longer than 4a and 4b (20–24). Circumpedal carinae (cp) thin, directed to insertions of 3b, but clearly not reaching them. 2017


Anogenital region (Figs 2, 4, 5). Six pairs of genital (20), one pair of aggenital (ag, 20–24), two pairs of anal (an1, an2, 10–12) and three pairs of adanal (ad1–ad3, 10–12) setae setiform, thin, indistinctly barbed. Anterior edges of genital plates with two setae, but the third pair inserted also close to anterior edges. Aggenital setae between genital and anal apertures, equally distanced from them. Adanal lyrifissures (iad) located close and parallel (or slightly diagonal) to anal plates. Adanal setae ad1 postanal, ad2 posterolateral, ad3 paraanal and lateral to iad. Distance ad1–ad2 equal to ad2– ad3. Unpaired postanal porose area (Ap) elongate oval (49–53 × 12–20). Legs (Figs 6, 7). Median claw distinctly thicker than laterals, all barbed on dorsal sides. Dorsoparaxial porose areas (p.a.) on all femora and on trochanters III, IV well visible. Formulas of leg setation and solenidia: I (1-4-3-4-20) [1-2-2], II (1-4-3-4-15) [1-1-2], III (1-2-1-3-15) [1-1-0], IV (1-2-2-3-12) [0-1-0]; homologies of setae and solenidia indicated in Table 1. Solenidia of tibiae IV inserted in anterior part of the segments. Famuli (ɛ) on tarsi I inserted posterolateral to solenidia ω1.

FIGURE 2. Galumna (Galumna) tsengi sp. nov., adult: ventral view (legs not shown). Scale bar 100 μm. 830


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TABLE 1. Leg setation and solenidia of adult Galumna (Galumna) tsengi sp. nov. Leg

Tr

Fe

Ge

Ti

Ta

I

v’

d, (l), bv”

(l), v’, σ

(l), (v), φ1, φ2

(ft), (tc), (it), (p), (u), (a), s, (pv), v’, (pl), l”, ɛ, ω1, ω2

II

v’

d, (l), bv”

(l), v’, σ

(l), (v), φ

(ft), (tc), (it), (p), (u), (a), s, (pv), ω1, ω2

III

v’

d, ev’

l’, σ

l’, (v), φ

(ft), (tc), (it), (p), (u), (a), s, (pv)

IV

v’

d, ev’

d, l’

l’, (v), φ

ft'', (tc), (p), (u), (a), s, (pv)

Note: Roman letters refer to normal setae, Greek letters to solenidia (except ɛ = famulus). Single prime (’) marks setae on the anterior and double prime (”) setae on the posterior side of a given leg segment. Parentheses refer to a pair of setae. Tr —trochanter, Fe—femur, Ge—genu, Ti—Tibia, Ta—tarsus.

FIGURES 3–5. Galumna (Galumna) tsengi sp. nov., adult: 3—anterior part of body, lateral view (legs not shown); 4—posterior part of body, lateral view; 5—posterior view. Scale bar 100 μm.

2017


FIGURES 6–7. Galumna (Galumna) tsengi sp. nov., adult: 6—leg I (trochanter covered by pedotectum I), right, antiaxial view; 7—leg IV, left, antiaxial view. Scale bar 50 μm.

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Material examined Holotype (female) and four paratypes (two females and two males): Taiwan, Yilan County, Yuanshan Township, Fushan Botanical Garden, 24°45.724'N, 121°35.098'E, 679 m a.s.l., soil, 21.XI.2009 (collected by J.R. Liao). Type deposition The holotype is deposited in the collection of the National Taiwan University, Taipei, Taiwan. Two paratypes are deposited in the collection of the Senckenberg Institute, Görlitz, Germany. Two paratypes are deposited in the collection of the Tyumen State University Museum of Zoology, Tyumen, Russia. Etymology The species is named after the taiwanese acarologist, Yi-Hsiung Tseng, for his contribution to the knowledge of mite fauna of Taiwan. Remarks In general morphological traits (body large; rostrum pointed; prodorsal setae well-developed; bothridial setae long, with dilated heads; lines L and S slightly divergent distally; complete sejugal suture; four pairs of notogastral porose areas, Aa transversely oriented, with dilated posterolateral parts; median pore and postanal porose area present; lyrifissures im located anterior to A2; ventral setae short; circumpedal carinae not reaching insertions of setae 3b), the new species is morphologically most similar to Galumna makilingensis Ermilov, Corpuz-Raros & Tolstikov, 2014 from the Philippines, but it differs from the latter by the bothridial heads with clavate heads (vs. spindle-form), posterolateral parts of porose areas Aa slightly dilated (vs. well-developed forming boomerang-like areas), and interlamellar setae erect, shorter than lamellar setae (vs. interlamellar setae flexible, longer than lamellar setae).

Uracrobates (Parauracrobates) newtaipeiensis Ermilov & Liao sp. nov. (Figs 8–14) Diagnosis Body size: 664–680 × 464–481. Notogaster and anogenital region foveolate. Cusps of lamellae truncate, teeth absent. Translamella slightly convex medially. Rostral, lamellar and interlamellar setae setiform, barbed. Bothridial setae short, globular, barbed. Notogaster with 10 pairs of setal alveoli. Notogastral porose areas rounded or slightly elongate. Lyrifissures im and opisthonotal gland openings located anteromedially to A2. Subcapitular setae, setiform, barbed, h and m shorter than a. Epimeral and anogenital setae of medium size, setiform, slightly barbed. Description Measurements. Body length: 680 (holotype: male), 664 (one paratype: one male); notogaster width: 464 (holotype), 481 (one paratype). Integument (Figs 8–11). Body color brown. Surface of notogaster and anogenital region sparsely and heavily foveolate (diameter of foveolae up to 6). Lateral parts of prodorsum and surface near translamella and lamellae microgranulate. Prodorsum (Figs 8, 10). Rostrum with two teeth and semi-quadrangular indentation between them. Lobe projecting, creating inner rostral tooth, rounded distally. Rostrophragma relatively thick. Lateral sides of prodorsum with one pair of teeth (pt). Lamellae (lam) shorter than half of prodorsum, 2017


lamellar cusps well-developed, truncate, teeth absent. Translamella (tlam) thin, slightly convex medially. Sublamellae (slam) about half of lamellae. Tutoria (tu) ridge-like, longer than half of prodorsum. Sublamellar porose areas oval (Al, 10–12 × 6–8). Rostral (98–106), lamellar (147–155) and interlamellar (196–200) setae setiform, barbed. Bothridial setae (36) with short stalks and larger, globular, barbed head. Exobothridial setae (ex, 32) setiform, thin, barbed. One small concavity located lateral to each insertion of interlamellar setae. Dorsophragmatic apophyses represented by group of low, roughened thickenings collectively elongated longitudinally, with variable number of components. Sejugal porose areas absent. Notogaster (Figs 8, 10–12). With 10 pairs of setal alveoli and four pairs of rounded or slightly elongate porose areas (36–41), Aa located nearly medial to setal alveoli la. All lyrifissures (ia, im, ip, ih, ips) distinct, im located anteromedially to A2 and distanced from them, ip between areas A2 and A3, closer to A3, ih anterolateral and ips posterolateral to A2. Opisthonotal gland openings anteromedial to A2. Gnathosoma (Figs 8, 9). Morphology of subcapitulum, palps and chelicerae typical for Mochlozetidae (e.g. Ermilov 2016; Ermilov & Friedrich, in press). Subcapitulum size: 132 × 110. Three pairs of subcapitular setae, setiform, h (36) and m (36) slightly barbed, a (16–20) barbed. Two pairs of adoral setae (8) setiform, heavily barbed. Length of palps: 110. Postpalpal setae (6) spiniform. Length of chelicerae: 165. Two cheliceral setae setiform, barbed, cha (45) longer than chb (28). Trägårdh’s organs long, elongate triangular. Epimeral and lateral podosomal regions (Figs 9, 10). Humeral porose areas Am and Ah diffuse, elongate oval. Custodia (cus) narrowly triangular. Pedotecta I and II represented by small laminae, Pd II quadrangular in ventral view. Discidia triangular, rounded distally. Epimeral setal formula: 31-3-3. Epimeral setae setiform, thin, slightly barbed, 1b and 3c (41–45) longest, 1a, 2a and 3a (28) shortest, others 32–36. Circumpedal carinae thin, connected to custodia. Anogenital region (Figs 9, 11, 12). Six pairs of genital (20–24), one pair of aggenital (20–24), two pairs of anal (28–32) and three pairs of adanal (36–41) setae setiform, thin, slightly barbed. Adanal lyrifissures located close and parallel (or slightly diagonal) to anal plates. Adanal setae ad3 paraanal and anterolateral to iad. Legs (Figs 13, 14). Median claw distinctly thicker than laterals, all barbed on dorsal sides. Lateral claws with one tooth ventrodistally. Dorsoparaxial porose areas on all femora and on trochanters III, IV, and porose areas in ventroposterior parts of tarsi and ventroanterior parts of tibiae 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]; homologies of setae and solenidia indicated in Table 2. Famuli on tarsi I inserted posterior to solenidia ω1. Type deposition The holotype is deposited in the collection of the National Taiwan University, Taipei, Taiwan. One paratype is deposited in the collection of the Tyumen State University Museum of Zoology, Tyumen, Russia. TABLE 2. Leg setation and solenidia of adult Uracrobates (Parauracrobates) newtaipeiensis sp. nov. Leg

Tr

Fe

Ge

Ti

Ta

I

v'

d, (l), bv'', v''

(l), v', σ

(l), (v), φ1, φ2

(ft), (tc), (it), (p), (u), (a), s, (pv), v', (pl), l'', ɛ, ω1, ω2

II

v'

d, (l), bv'', v''

(l), v', σ

(l), (v), φ

(ft), (tc), (it), (p), (u), (a), s, (pv), ω1, ω2

III

l', v'

d, l', ev'

l', σ

l', (v), φ

(ft), (tc), (it), (p), (u), (a), s, (pv)

IV

v'

d, ev'

d, l'

l', (v), φ

ft'', (tc), (p), (u), (a), s, (pv)

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FIGURE 8. Uracrobates (Parauracrobates) newtaipeiensis sp. nov., adult: dorsal view. Scale bar 100 μm.

Material examined Holotype (male) and one paratype (male): Taiwan, New Taipei City, Xindian District, Zhitan Elementary School, 24°56.266'N, 121°31.910'E, 56 m a.s.l., leaves on Ficus irisana, 27.I.2010 (collected by J.R. Liao). Etymology The specific name newtaipeiensis refers to the New Taipei City (Taiwan), where the type material was collected.

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FIGURE 9. Uracrobates (Parauracrobates) newtaipeiensis sp. nov., adult: ventral view (legs not shown). Scale bar 100 μm.

Remarks The new species differs from the type species Uracrobates (Parauracrobates) truncatus Ermilov & Martens, 2015 from Nepal by the truncated lamellar cusps (vs. lamellar cusps with well-developed lateral teeth), foveolate notogaster and anogenital region (vs. not foveolate), and anal and adanal setae of medium size (vs. short).

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FIGURES 10–12. Uracrobates (Parauracrobates) newtaipeiensis sp. nov., adult: 10—anterior part of body, lateral view (legs not shown); 11—posterior part of body, lateral view; 12—posterior view. Scale bar 100 μm.

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FIGURES 13–14. Uracrobates (Parauracrobates) newtaipeiensis sp. nov., adult: 13—leg I (trochanter covered by pedotectum I), right, antiaxial view; 14—leg IV, left, antiaxial view. Scale bar 50 μm.

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Acknowledgements We cordially thank Dr. Elizabeth A. Hugo-Coetzee (National Museum, Bloemfontein, South Africa) and two anonymous reviewers for their valuable comments; H.T. Fang, Y.H. Chiang (National Taiwan University, Taipei, Taiwan) and C.H. Hsieh (Private Chinese Culture University, Taipei, Taiwan), who collected materials.

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