Zootaxa 4658 (2): 201–222 ISSN 1175-5326 (print edition) https://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2019 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4658.2.1 http://zoobank.org/urn:lsid:zoobank.org:pub:13429195-C5D1-4F10-9C3F-EBC6CDF89D8C Amblyseiinae of New Zealand (Acari: Phytoseiidae): redescriptions, rediscoveries, new records, new combinations and keys to species MIN MA1, QING-HAI FAN2 & ZHI-QIANG ZHANG3,4* 1 College of Agronomy, Shanxi Agriculture University, Taigu, Shanxi, China 2 Plant Health & Environment Laboratory, Ministry for Primary Industries, Auckland, New Zealand 3 Landcare Research, Private Bag 92170, Auckland, New Zealand 4 School of Biological Sciences, The University of Auckland, Auckland, New Zealand * Corresponding author. E-mail: [email protected] Abstract This paper presents several new additions and changes to the subfamily Amblyseiinae of New Zealand. Amblyseius lentiginosus Denmark & Schicha, 1974 is newly recorded in New Zealand and its males and females are redescribed in detail. Amblyseius obtusus was recollected and a revised key to New Zealand species of Amblyseius is provided. Proprioseiopsis lenis (Corpuz & Rimando, 1966) is reported from New Zealand for the first time and its females are described in detail. A key to New Zealand species of Proprioseiopsis is also included. A rare species, Phytoscutus acaridophagus (Collyer, 1964), was rediscovered and its males and females are redescribed in detail. Three species, two in Amblyseius and one in Proprioseiopsis, are transferred to the genus Graminaseius: G. bidibidi (Collyer, 1964) comb. nov., G. martini (Collyer, 1982) comb. nov. and G. exopodalis (Kennett, 1958) comb. nov. Graminaseius has not been previously recorded in New Zealand. Key words: Mesostigmata, Amblyseiinae, New Zealand, new records, redescriptions, keys Introduction The family Phytoseiidae in New Zealand has been reasonably well studied, with 35 species in 13 genera recorded (Collyer 1982; Minor 2008; Sirvid et al. 2011; this study). The majority of these species belong to four genera: Amblyseius (4 spp.), Neoseiulus (8 spp.), Neoseiulella (8 spp.) and Typhlodromus (5 spp.). In this paper, we add new records to the New Zealand fauna and provide detailed redescripitons of three species. Amblyseius lentiginosus Denmark & Schicha, 1974 has previously only been reported from Australia (Demite et al. 2018). It was recently collected in New Zealand (North Island). We herein provide a redescription of both sexes and we compared our specimens with type material from Australia. We also provide an updated key to the New Zealand species of Amblyseius. Proprioseiopsis lenis (Corpuz & Rimando, 1966) has previously been reported from Australia, Philippines (original description) and Thailand (Demite et al. 2018). We present the first report of this species from New Zea- land with a detailed redescription of its females. We also provide a key to the New Zealand species of Propriosei- opsis. The genus Phytoscutus is represented in New Zealand by a single species, P. acaridophagus (Collyer, 1964) (Sirvid et al. 2011). It was originally described based on a male specimen by Collyer (1964) who followed Pritchard & Baker’s classification system and placed it in the genus Iphiseius. Two years later Collyer (1966) described the females and kept the species in Iphiseius. Yoshida-Shaul & Chant (1997) transferred the species to Phytoscutus and redescribed the female based on a “paratype female” designated by Collyer (1966). Walter (1999) provided a diagnosis of the species based on three females collected from Queensland and Victoria, Australia, and discussed the prey specialisation of some species of Phytoscutus. Recently, we obtained two fresh females and re-examined some specimens of Collyer. Here we redescribe the males and females according to the latest standards. Accepted by B. Halliday: 16 Aug. 2019; published: 22 Aug. 2019 201 Licensed under a Creative Commons Attribution License http://creativecommons.org/licenses/by/3.0 Material and methods We collected fresh phytoseiid mites and made new permanent slides under a dissecting microscope (Leica MZ6). Previously mounted materials located in the New Zealand Arthropod Collection, Auckland were remounted. Speci- mens were examined, measured and photographed with the same methods of Ma et al. (2016). Measurements are presented as the value from the specimen from which the drawings were made followed by the range in paren- theses. All measurement units were presented in micrometres (μm); each measurement shows the average (mini- mum–maximum) in micrometres. Setal nomenclature follows Evans (1953) and Chant & McMurtry (2007), and the terminology of pore-like structures follows Beard (2001) and Beaulieu & Beard (2018). All specimens (except those borrowed) are deposited in NZAC, Auckland, New Zealand. Institutional acronyms follow Zhang (2018). Results Genus Amblyseius Berlese, 1914 Amblyseius Berlese, 1914: 143. Type species: Zercon obtusus Koch, 1839, sensu Karg, 1960: 440. Amblyseius lentiginosus Denmark & Schicha, 1974 Amblyseius lentiginosus Denmark & Schicha, 1974: 145. Amblyseius lentiginosus.—Schicha, 1987: 61. Amblyseius (Amblyseius) lentiginosus.—Schicha, 1977: 153. Amblyseius perlongisetus.—Collyer, 1964: 634; Collyer, 1982: 194; Zhang 2001: 15. (misidentification). Redescription Adult female (n=3 from NZ and 1 paratype from Australia; Table 1). TABLE 1. Comparative measurements (in micrometres) of females of Amblyseius lentiginosus Denmark & Schi- cha, 1974. Characters Original description by Paratype examined (this study) NZ material Denmark & Schicha (1974) (this study) Dorsal shield (L) 352–360 401 360–409 Dorsal shield (W) 199–202 222 203–232 j1 30–36 38 31–37 j3 55–58 59 51–56 j4 6 5 4–6 j5 3 4 3–4 j6 7 6 5–8 z2 7–9 9 6–10 z4 6–7 7 6–8 z5 3–4 5 4–5 s4 85–90 98 85–100 J2 7 6 6–7 J5 7–8 8 7–10 ...Continued on next page 202 · Zootaxa 4658 (2) © 2019 Magnolia Press MA ET AL. TABLE 1. (Continued) Characters Original description by Paratype examined (this study) NZ material Denmark & Schicha (1974) (this study) Z1 7 7 6–9 Z4 123–130 142 114–134 Z5 203–210 226 186–210 S2 7–9 9 6–9 S4 7–9 8 8–9 S5 7–9 6 5–8 r3 14–16 16 14–16 R1 9–10 11 9–14 Sternal shield (L) 116–130 72 62–66 Sternal shield (W) 101–109 80 81–83 Distance st5–st5 80–100 82 91–109 st1 – 34 28–36 st2 – 32 32–34 st3 – 30 30–31 st4 – 29 26–29 st5 – 27 26–28 Ventrianal shield (L) 116–130 126 123–129 Ventrianal shield (W) 101–109 95 92–96 Distance gv3–gv3 – 17 16–17 JV1 – 17 15–18 JV2 – 17 15–18 JV4 – 9 10–12 JV5 – 86 79–86 ZV1 – 17 12–16 ZV2 – 16 15–16 ZV3 – 9 10–14 Primary metapodal – 26 26–29 platelets (L) Primary metapodal – 7 6–9 platelets (W) Secondary metapodal – 12 11–10 platelets (L) Secondary metapodal –33 platelets (W) Spermathecal cervix – 21–22 20–24 Movable digit 50–51 36 35–38 Pilus dentilis – 6 8–11 Leg I 399 406 399–430 Leg II 338 333 338–443 Leg III 336 332 342–355 ...Continued on next page AMBLYSEIINAE OF NEW ZEALAND Zootaxa 4658 (2) © 2019 Magnolia Press · 203 TABLE 1. (Continued) Characters Original description by Paratype examined (this study) NZ material Denmark & Schicha (1974) (this study) Leg IV 419 426 419–459 Macroseta Ge IV 90–101 139 105–117 Macroseta Ti IV 91–94 107 74–97 Macroseta BTa IV 75–87 83 69–82 FIGURE 1. Amblyseius lentiginosus (female). A. dorsal idiosoma; B. ventral idiosoma; C. chelicera; D. insemination apparatus. Dorsum (Fig. 1A; Plate 2A). Dorsal shield smooth, nearly oval, with a waist at level of R1; 374 (360–409) long, 220 (203–232) wide at level of setae s4, bearing 17 pairs of smooth setae except Z4 and Z5 (slightly barbed), all min- ute except j1, j3, s4, Z4 and Z5; j3 slightly longer than j1, extending beyond bases of z2; s4 extending beyond bases of Z1; Z5 whip-like and apically blunt, approximately twice as long as Z4; lateral setae r3 and R1 smooth, on soft membranous cuticle lateral to dorsal shield, r3 at level of z4. Twelve pairs of visible lyrifissures (id1, id4, id6, idl1, idl3, idl4, idla, is1, idm2, idm3, idm4 and idm6) and seven pairs of gland openings (gd1, gd2, gd4, gd5, gd6, gd8 204 · Zootaxa 4658 (2) © 2019 Magnolia Press MA ET AL. and gd9) present on dorsal shield. Muscle marks visible, mainly between j3 and J2. Peritremes extending forward beyond bases of j1. Lengths of setae: j1 33 (31–37), j3 54 (51–56), j4 5 (4–6), j5 3 (3–4), j6 6 (5–8), z2 8 (6–10), z4 7 (6–8), z5 4 (4–5), s4 90 (85–100), J2 6 (6–7), J5 9 (7–10), Z1 7 (6–9), Z4 125 (114–134), Z5 197 (186–210), S2 8 (6–9), S4 8 (8–9), S5 7 (5–8), r3 15 (14–16), R1 11 (9–14). PLATE 1. Amblyseius lentiginosus (female). A. chelicera; B. spermathecal; C. leg IV. Ventral idiosoma (Figs 1B, Plate 2B). Sternal shield smooth, 64 (62–66) long, 82 (81–83) wide, faintly striated at lateral margins, bearing three pairs of setae (st1, st2 and st3) and two pairs of lyrifissures (iv1 and iv2); iv1 poste- rior to st1, iv2 anterior to st3; st4 and iv3 on metasternal platelets. Genital shield smooth, distance between st5–st5 100 (91–109). Lengths of setae: st1 33 (28–36), st2 33 (32–34), st3 30 (30–31), st4 28 (26–29), st5 27 (26–28). A series of horizontal sclerites present between genital and ventrianal shields; a pair of small platelets between ZV1 and ZV2. Ventrianal shield 125 (123–129) long, 94 (92–96) wide at level of ZV2, approximately pentagonal, with AMBLYSEIINAE OF NEW ZEALAND Zootaxa 4658 (2) © 2019 Magnolia Press · 205 three pairs of pre-anal setae (JV1, JV2 and ZV2) and a pair of conspicuous elliptical gland openings (gv3) postero- medial to JV2, distance gv3–gv3 16 (16–17); 3 pairs of setae (ZV1, ZV3, JV4 and JV5) and a pair of lyrifissures on soft cuticle surrounding ventrianal shield; JV1 close to anterior margin of ventrianal shield.