Acari: Eupalopsellidae - BioOne

Systematic & Applied Acarology 18(2): 190–196. http://dx.doi.org/10.11158/saa.18.2.11

ISSN 1362-1971

http://zoobank.org/urn:lsid:zoobank.org:pub:4B015F48-A46C-490B-8C43-21342AC5CAD5 Article

A new species of Eupalopsellus Sellnick, 1950 (Acari: Eupalopsellidae) from the south of Iran SAYED MOSAYEB MAHDAVI1, MAHDIEH ASADI1, 2 & SADEGH FARZAN1 1, 2Department

of Plant Protection, College of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran; E-mail:[email protected], [email protected], [email protected] 2

Corresponding author

Abstract A new species of Eupalopsellus (Acari: Trombidiformes: Eupalopsellidae), namely E. kermaniensis sp. nov. ex Artemisia sp. L. (Asteraceae) from Kerman province, Iran, is described. A key to the known species of the world is provided. Key words: Trombidiformes, Raphignathoidea, taxonomy, description, new species, fauna, Kerman

Introduction The cosmopolitan eupalopsellids are commonly encountered on twigs and bark (Krantz & Walter, 2009) and occur on a wide range of plants in association with phytophagus mites and insect pests. Of the 18 described species, 3 were recorded from Iran, 10 from South Africa (Meyer & Ryke, 1960; Meyer & Ueckermann, 1984; Van Dis & Ueckermann, 1993), one from each of the following countries, Scotland and USA (Summers, 1960), Egypt (Zaher & Gomma, 1978), Sweden (Sellnick, 1949) and China (Fan, 2004), respectively. In this paper we describe one more new species from Iran and increase the known species up to 19. A key to the known species of the world is provided.

Material and Methods Leaves and twigs infested with mites were collected, placed into plastic bags and transferred to a laboratory. Samples were washed in a solution of commercial detergent (5%). This solution was filtered by overlapping two sieves with different mesh sizes (16 Mesh; 400 Mesh), respectively. Mites retained in the smaller sieve were washed with 70% ethanol into a Petri dish. Mites were collected under a stereomicroscope, cleared with lactic acid (at 45°C in an oven) and mounted in Hoyer’s medium. The terminology of the dorsal idiosomal setae follows Lindquist (1985) and that of palp and leg setae follows Fan (2004), Evans (1992) and Harreis (1979). Measurements were performed using a Dino-Eye® soft imaging system and are given in micrometers (μm). The drawings were made using a drawing tube attached to an Olympus® Research Microscope. Figures were cleaned and edited in Corel draw x5 2010 and Photoshop CS5, respectively. Abbreviations PPRIC—National Collection of Acari, ARC-Plant Protection Research Institute, Pretoria, South Africa SBUC—Collection of the Acarology Laboratory, Shahid Bahonar University of Kerman, Kerman, Iran

190

© 2013 Systematic & Applied Acarology Society

Results Family Eupalopsellidae Willmann, 1952 Genus Eupalopsellus Sellnick, 1949 Diagnosis as of Khanjani et al. (2011)

Eupalopsellus kermaniensis Mahdavi & Farzan sp. nov. (Figs. 1–11) Type series. Holotype: female, Bongan, Baft (Kerman province, Iran), 25.vii.2010, S. M. Mahdavi, ex. Artemisia sp. L. (Asteraceae) (SBUC). Paratypes: three females, same data as holotype (2 in SBUC; 1 in PPRIC).

FIGURES 1–3. Eupalopsellus kermaniensis sp. nov. (female). (1) dorsum; (2) venter; (3) genital and anal area.

2013

MAHDAVI ET AL.: A NEW SPECIES OF EUPALOPSELLUS FROM IRAN

191

Diagnosis. Palptibial claw vestigial; palpgenu twice as long as palptibia; l'T about one ninth length of l; dorsal shields punctate; shield CD expanded at the level of setae d2; pob nearly twice as large as eye; humeral platelets vestigial; c1 on CD; ratios h1: h2 ≈ 1.1, 1a: 3a: 4a = 1.5: 1.5: 1.0; g1: ps3 ≈ 1; coxa IV with 2 setae; trochanter IV with 1 seta, femur II with 4 setae, femur III with 3 setae; genu III and IV each with 1 seta; tibiae IV with 4 + 1φp, tarsus I with 10 + 1ω, tarsus II with 9+1ω and tarsus IV without ω. Description Female: Length of body of holotype (v1–h2) 225, width 165. Dorsum (Fig. 1): Body oval; Prodorsal shield truncate posteriorly, bearing four pairs of setae (v1, v2, sc1 and sc2), one pair of pob and eyes (20: 10); sc1 more than one-half distance sc1–sc1; dorsal shields punctate, anterior margin of prodorsal shield with reversed U-shaped striae, distance between prodorsal and hysterosomal shield (CD) with transverse striae.The area lateriad of CD and EF shields striated longitudinally; CD, EF and H shields with three, three and two pairs of setae, respectively; humeral plate vestigial; ratio h1 :h2 (40: 41) ≈ 1.1; dorsal setae with small spinules; Setal measurements: Length v1 11–13, v2 20–23, sc1 24–25, sc2 22–24, c1 24–26, c2 25–28, d1 24– 25, d2 24–26, e1 32–33, e2 30–32, f1 50–53, h1 40–42, h2 41–42. Distance between setae v1–v1 15–16, v2–v2 45–47, sc1–sc1 14–16, sc2–sc2 79–83, c1–c1 55– 56, c2–c2 135–138, d1–d1 67–69, d2–d2 94–96, e1–e1 62–66, e2–e2 80–83, f1–f1 62–63, h1–h1 35– 36, h2–h2 55–57.

FIGURES 4–7. Eupalopsellus kermaniensis sp. nov. (female). (4) subcapitulum; (5) palpal tarsus; (6) palp; (7) chelicera.

192

SYSTEMATIC & APPLIED ACAROLOGY

VOL. 18

Venter (Fig. 2–3): Entirely striated; length of setae 1a 50–52, 1b 22–25, 1c 31–32, 2b 32–34, 3a 50–54, 3b 23–25, 3c 25–26, 4a 33–36, 4b 17–18, 4c 18–19, ag1 17–18, ag2 7–9, ag3 8–9, g1 14– 16, ps1 16–18, ps2 15–16, ps3 13–15; ventral setae 1a as long as 3a, ratio 1a: 3a: 4a ≈ 1.5: 1.5: 1; ratio g1: ps3 ≈ 1. Gnathosoma (Fig. 4–7): Chelicerae slender, nearly one and half as long as movable digits (114: 68); Palp tapered, palpgenu about twice as long as palptibia (28: 14), palptibial claw absent, dorsal seta l'T (2) about one ninth length of l (19); terminal palptarsal eupathidium 7; counts of setae and solenidia from palptrochaner to palptarsi: 0, 3, 1, 3, 4+ 1ω + 1 subterminal eupathidium + 1 terminal eupathidium; Subcapitular setae m and n 43, 26; m-m (6) about one third of n-n (17) and one fifth of m-n (28). Legs (Figs. 8–11): Length (from base of trochanter to base of claws) of leg I 152–159; leg II 125–130; leg III 108–112 and leg IV 126–134. Tarsal claws uncinate; setal formulae as follows: coxae 2–1–2–2; trochanters 1–1–1–1; femora 4–4–3–1; genua 1 + 1κ–1–1–1; tibiae 5 + 1φp–4+1φp –4+1φp –4+1φp; tarsi 10+1ω–9+1ω–6+1ω–6.

FIGURES 8–11. Eupalopsellus kermaniensis sp. nov. (female). (8) leg I; (9) leg II; (10) leg III; (11) leg IV.

Remarks. The new species is similar to E. euckermanni Khanjani et al., 2011 in having palptibial claw absent, short terminal eupathidium on palptarsi, dorsal shields punctate, pob: eye =

2013


193

2, seta c1 on CD; coxa IV, trochanter IV, femura II, III and tibiae with 2, 1, 4, 3, 4+1φp, respectively; tarsi I and II with 10+1ω and 9+1ω, respectively, no ω on tarsi IV. It can be distinguished from the latter by the following features: genua III and IV each has one seta (without seta in E. euckermanni); l'T: l is about 1/9 (1/7 in E. euckermanni); humeral plates is vestigial (obvious in E. euckermanni) and 1a: 3a : 4a = 1.5: 1.5: 1.0 (2.38: 2.28: 1.0 in E. euckermanni). Ratio l'T : l in new species is obviously different from the rest of Iranian species. Etymology. This species is named after the province (Kerman) where it was collected. Distribution. Iran, known only from the type locality. Male and immature stages. Unknown Key to the species of Eupalopsellus Sellnick 1. Palptibial claw developed, dentate or hooked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - Palptibial claw vestigial or seta-like. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Palptibial claw large, hooked; sc1 < sc1-sc1; tarsi IV with ω . . . . . . . . . E. olearius Zaher & Gomaa, 1978 - Palptibial claw small, dentate; sc1 > sc1-sc1; tarsi IV without ω . . . . . . . . . . E. rostridius Summers, 1960 3. Trochanter IV without seta. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - Trochanter IV with one seta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4. Dorsal shields striated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E. fasipalmus Van Dis & Ueckermann, 1993 - Dorsal shields punctate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5. Tarsi IV with ω; humeral plates vestigial. . . . . . . . . . . . . . . . . . .E. oresbiosis Meyer & Ueckermann, 1984 - Tarsi IV without ω; humeral plates present . . . . . . . . . . . . . E. crotovallaris Van Dis & Ueckermann, 1993 6. Femur III with two setae . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 - Femur III with three setae . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7. Genua III and IV each with one seta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 - Genua III and IV without seta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8. Dorsal shields reticulated; humeral plates present; pob about twice as large as eyes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E. retiscutatus Meyer & Ueckermann, 1989 - Dorsal shields smooth; humeral plates vestigial; pob about as large as eyes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E. summersi Meyer & Ueckermann, 1984 9. Dorsal shields reticulate, finely punctate; pob: eye ≈ 2; tarsi II with 9 + 1ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E. prasadi Bagheri & Khanjani, 2009 - Dorsal shields reticulate or punctate; pob: eye ≈ 1 or 3; tarsi II with 8 + 1ω . . . . . . . . . . . . . . . . . . . . . . 10 10. Pob about three times as large as eyes; humeral plates present; tarsi I with 10 + 1ω . . . . . . . . . . . . . . . . 11 - Pob about as large as eyes; humeral plates vestigial; tarsi I with 9 + 1ω . . . . . . . . . . . . . . . . . . . . . . . . . 12 11. Dorsal shield reticulated; 1a: 3a: 4a = 2.0: 2.0: 1.0 . . . . . . . . . . . . . . . E. brevipilus (Meyer & Ryke, 1960) - Dorsal shield punctate; 1a: 3a: 4a = 1.8: 1.8: 1.0 . . . . . . . . . . . . . . . . . . . . . . . . E. olandicus Sellnick, 1949 12. Seta c1 situated on shield CD; 1a: 3a : 4a = 3.8: 2.4: 1.0 . . . .E. passerinae Van Dis & Ueckermann, 1989 - Seta c1 situated on membrane in front of CD; 1a: 3a: 4a = 2.9: 2.3: 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E. pteroniae Van Dis & Ueckermann, 1993 13. Dorsal shield punctate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - Dorsal shield smooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

194


VOL. 18

14. Tarsi IV with ω; pob: eye ≈ 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . E. sellnicki Meyer & Ueckermann, 1984 Tarsi IV without ω; pob: eye ≈ 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 15. Genua III and IV each with one seta; humeral plates vestigial; 1a: 3a: 4a = 1.5: 1.5: 1.0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E. kermaniensis sp. nov. - Genua III and IV each without setae; humeral plates obvious; 1a: 3a: 4a = 2.38: 2.28: 1.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E. euckermanni Khanjani et al., 2011 16. Coxa IV with one seta; femur II with three setae; tarsi IV with ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E. xerotopicus Van Dis & Ueckermann, 1993 - Coxa IV with two seta; femur II with four setae; tarsi IV without ω . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 17. Tarsi I, II with 9 + 1ω – 8 + 1ω; palptibia: palpgenu ≈ 0.5; g1: ps3 ≈ 1.5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E. hamedaniensis Khanjani et al., 2007 - Tarsi I, II with 10 + 1ω – 9 + 1ω; palptibia: palpgenu ≈ 1.0; g1: ps3 ≈ 1.0. . . . . . . . . . . . . . . . . . . . . . . . 18 18. Shield CD expanded at the level of setae d2; EF slightly incised in front of setae e1; setae h1 about twice length of h2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E. trudis Summers, 1960 - Shield CD not expanded at the level of setae d2; EF strongly incised in front of setae e1; setae h1 about 1.3 times length of h2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E. deformatus Fan, 2004

Acknowledgements The authors wish to thank Dr. Eddie Ueckermann for his helps in species description.

References Bagheri, M. & Kanjani, M. (2009) A new species of the genus Eupalopsellus Sellnick (Acari: Prostigmata: Eupalopsellidae) from central Iran. International Journal of Acarology, 35(1), 53–57. http://dx.doi.org/10.1080/01647950902731549 Evans, G.O. (1992) Principals of Acarology. CAB International Publication Wallingford, UK. 563 pp. Fan, Q.-H. (2004) A catalogue of the genus Eupalopsellus Sellnick (Acari: Prostigmata, Eupalopsellidae) with the description of a new species from China. Biologia, Bratislava, 59(5), 533–545. Harris, R.-A (1979) A Glossary of Surface Sculpturing. Ca1ifornia Department of Food and Agriculture, Bureau of Entomology, 28, 1–31. Khanjani, M., Eghbalian, A.H., Ueckermann, E.A. & Pourmirza, A.A. (2007) A new species of the genus Eupalopsellus Sellnick (Acari: Eupalopsellidae) from Iran. International Journal of Acarology, 33(4), 319–322. http://dx.doi.org/10.1080/01647950708683692 Khanjani, M., Masoudian, F. & Asali Fayaz, B. (2011) A new species of the genus Eupalopsellus Sellnick (Acari: Prostigmata: Eupalopsellidae) from west of Iran. InternationalJournal of Acarology, 37(1), 102– 107. http://dx.doi.org/10.1080/01647954.2010.542177 Meyer, M.K.P. & Ryke, P.A.J. (1960) Mites of the superfamily Raphignathoidea (Acarina: Prostigmata) associated with South African plants. Annals and Magazine ofNatural History, 13, 209–234. http://dx.doi.org/10.1080/00222935908651024 Meyer, M.K.P. & Ueckermann, E.A. (1984) The family Eupalopsellidae (Acari: Prostigmata) with descriptions of new species from South Africa. Phytophylactica, 16, 121–142. Meyer, M.K.P. & Ueckermann, E.A. (1989) African Raphignathoidea (Acari: Prostigmata). Entomology Memoir Department of Agricultural Technical ServicesWater Sup., Republic of South Africa, 74, 1–58. Sellnick, M. (1949) Milben von der Kuste Schwedens. Entomologisk Tidskrift, 70, 123–135. Summers, F.M. (1960) Eupalopsis and eupalopsellid mites (Acarina: Stigmaeidae, Eupalopsellidae). Florida Entomologist, 43, 119–138. 2013


195

http://dx.doi.org/10.2307/3492677 Van Dis, J.C.S. & Ueckermann, E.A. (1993) New species of the genera Stigmaeus Koch, Eryngiopus Summers and Eupalopsellus Sellnick (Acari: Stigmaeidae, Eupalopsellidae) from the Afrotropical region. Phytophylactica, 25, 117–135. Walter, D.E., Lindquist, E.E., Smith, I.M., Cook, D.R. & Krantz, G.W. (2009) Chapter thirteen Order Trombidiformes. In: Krantz, G.W. & Walter, D. E. (Eds.), A Manual of Acarology, Third edition. Texas Tech University Press, Lubbock, pp. 233–420. Willmann, C. (1952) Die Milbenfauna der Nordseeinsel Wangerooge. Veroffent-lichungen aus dem Instituts Meeresforchung, Bremerhaven, 1, 139–186.

Accepted by Qing-Hai Fan: 5 Jun. 2013; published 30 Jun. 2013

196


VOL. 18