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Eustigmaeus seemani sp. nov. and description maleof E. segnis (Koch) (Acari: Stigmaeidae) and re-description of E. rhodomela (Koch) from IranMohammad Khanjania, Amin Firozfarb, Alinaghi Mirmoayedib & Bahman Asali Fayaza

a Department of Plant Protection, College of Agriculture, Bu-Ali Sina University,Hamedan, Iranb Department of Plant Protection, College of Agriculture, Razi University, Kermanshah,IranPublished online: 29 Nov 2013.

To cite this article: Mohammad Khanjani, Amin Firozfar, Alinaghi Mirmoayedi & Bahman Asali Fayaz , International Journalof Acarology (2013): Eustigmaeus seemani sp. nov. and description male of E. segnis (Koch) (Acari: Stigmaeidae) and re-description of E. rhodomela (Koch) from Iran, International Journal of Acarology, DOI: 10.1080/01647954.2013.839740

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International Journal of Acarology, 2013http://dx.doi.org/10.1080/01647954.2013.839740

Eustigmaeus seemani sp. nov. and description male of E. segnis (Koch) (Acari: Stigmaeidae) andre-description of E. rhodomela (Koch) from Iran

Mohammad Khanjania, Amin Firozfarb, Alinaghi Mirmoayedib and Bahman Asali Fayaza

aDepartment of Plant Protection, College of Agriculture, Bu-Ali Sina University, Hamedan, Iran (emails: mkhanjani@gmail.com andbasalifayaz@gmail.com); bDepartment of Plant Protection, College of Agriculture, Razi University, Kermanshah, Iran (emails:firuzfar@gmail.com and alimirmoayedi@gmail.com)

(Received 4 June 2013; accepted 26 August 2013)

A new mite species, Eustigmaeus seemani sp. nov., from western Iran (Rijab region, Kermanshah province) is described andillustrated based on females and males from soil and litter under apple trees. The male of Eustigmaeus segnis (Koch) fromsoil and litter under walnut trees (Rijab region, Kermanshah province) is described and Eustigmaeus rhodomela (Koch) (frommosses in Uormia vicinity, Western Azerbaijan province) is re-described and reported for the first time from Iran. A key toall known species of Eustigmaeus in Iran is presented.

http://zoobank.org/urn:lsid:zoobank.org:pub:02943435-C850-4A60-B30D-4BD3D4EE3D27

Keywords: Acari; predator; Stigmaeidae; Eustigmaeus; new record; Iran

Introduction

The genus Eustigmaeus is one of the largest groups inthe family Stigmaeidae. This genus currently contains107 species (Fan and Zhang 2004, 2005; Dogan 2005;Faraji et al. 2007; Cheng and Fan 2008; Dogan et al. 2011;Dönel and Dogan 2011; Haddad Irani-Nejad et al. 2011;Khanjani et al. 2011; Gheblealivand et al. 2012). Themembers of this genus generally are free living on mosses,lichens, grass and various litters, and a few are parasiticon sandflies (Gerson 1972; Flechtmann 1985; Zhang andGerson 1995; Dogan 2005; Khanjani et al. 2011). Up tothe present 15 species of the genus Eustigmaeus havebeen reported from Iran, namely: Eustigmaeus nasrinaeKhanjani & Ueckermann, 2002; Eustigmaeus segnis(Koch) (Khanjani and Ueckermann 2002); Eustigmaeusjiangxiensis Hu, Chen & Huang, 1996 (Kheradmand et al.2007); Eustigmaeus spathatus Ueckermann & Meyer,1987 (Darvishzadeh and Kamali 2009); Eustigmaeusdogani Khanjani, Asali Fayaz, Mirmoayedi & Ghaedi,2011; Eustigmaeus azerbaijanensis Haddad Irani–Nejad,Lotfollahi, Akbari, Bagheri & Ueckermann, 2011;Eustigmaeus setiferus Bagheri, Saber, Ueckermann,Ghorbani & Navaei-Bonab, 2011a; Eustigmaeus nahidaeGheblealivand, Bagheri & Ghorbani, 2012; Eustigmaeusioaniensis Kapaxidi & Papadoulis, 1999 (Navaei-Bonabet al. 2012); Eustigmaeus ueckermanni Bagheri & Beyzavi,2013; Eustigmaeus anauniensis (Canestrini, 1889) (Doganet al. 2012); Eustigmaeus ornatus Ueckermann & Smith-Meyer, 1987 (Kamali et al. 2006); Eustigmaeus plumifer(Halbert, 1923) (Bagheri et al. 2011b); Eustigmaeussculptus Dogan, Ayyildiz & Fan, 2003 (Lotfollahi et al.2010); Eustigmaeus johnstoni Zhang & Gerson, 1995(Badakhshan et al. 2011). In this study, a sixteenth andseventeenth species of Eustigmaeus from Iran are reported.

Materials and methods

The specimens were collected from soil, litter under appleand walnut trees and mosses in Rijab region (Kermanshahprovince) and Uromia vicinity, West Azerbaijan province,which is located in the western and north-western partsof Iran, respectively. The mites were directly mounted onmicroscopic slides in Hoyer’s medium. The specimenswere examined under an Olympus BX51 microscope (dif-ferential interference contrast). A Camera Lucida apparatusattached to the microscope was used for detailed illustra-tions. Body length measurements represent the distancebetween base of gnathosoma and end of idiosoma; widthwas measured at the broadest point of idiosoma. The termi-nology and setal notations used in of the description of thenew species follow that of Kethley (1990). The measure-ments of paratypes are in parentheses. Comparision charac-ters and chaetotaxy of leg segments of Iranian species arepresented in Tables 1 and 2.

Family Stigmaeidae Oudemans, 1931Genus Eustigmaeus (Berlese, 1910)

Type species Stigmaeus kermesinus Koch, 1836.

Key to female Iranian species of Eustigmaeus

1. Eyes absent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2– Eyes present . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. With two pairs of ag setae . . . . . . . . . . . . . . . . . . . . . . . .E. azerbaijanensis Haddad Irani-Nejad, Lot-follahi, Akbari, Bagheri & Ueckermann, 2011

– With three pairs of ag setae . . . . . . . . . . . . . . . . . . . . . 3

3. Trochanter III with one seta, femur II with 5 setae . . .. . . . . . . . . . . . . . E. johnstoni Zhang & Gerson, 1995

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Table 1. Comparision characters of Iranian species of Eustigmaeus.

Taxa/Characters Eyes Dorsal setae Hyaline ag 4a Cx. Sh.∗ Cx. Sh.∗ ω IV H. c.∗∗

E. anauniensis Present Bushy Absent 3 Present Smooth Fused Absent AbsentE. azerbaijanensis Absent Serrate Absent 2 Present Smooth Separated Present AbsentE. dogani Present Bushy Present 3 Present Reticulated Fused Absent AbsentE. ioaniensis Present Serrate Absent 3 Present Reticulated Fused Absent AbsentE. johnstoni Absent Bushy Absent 3 Present Reticulated Fused & separated Absent AbsentE. jiangxiensis Present Spatulate Present 2 Absent Reticulated Separated Absent AbsentE. nahidae Present Serrate Present 2 Present Reticulated Separated Absent AbsentE. nasrinae Present Bushy Absent 3 Present Smooth Fused Absent AbsentE. ornatus Present Serrate Absent 1 Present Smooth Separated Absent AbsentE. plumifer Present Bushy Absent 3 − − − Absent −E. rhodomela Present Serrate Present 3 Present Reticulated Separated Present PresentE. sculptus Present Bushy Absent 3 Present Reticulated Fused Absent AbsentE. seemani sp. nov. Present Bushy Absent 3 Present Reticulated Fused Absent AbsentE. segnis Present Serrate Absent 1 Present Reticulated Fused Absent AbsentE. setiferus Present Multi−pectinated Present 3 Present Reticulated Fused Absent AbsentE. spathatus Present Spatulate Absent 3 Present Smooth Fused Absent AbsentE. ueckermanni Absent Bushy Absent 3 Present Smooth Fused Absent Absent

Notes: ∗Cx. Sh.: Coxisternal shield.∗∗H. c.: Humeral callosities.

Table 2. Chaetotaxy of leg segments of Iranian species of Eustigmaeus.

Taxa/Characters Cx Tr Fe Ge Ti Ta

E. anauniensis 2−2−2−2 1−1−2−1 6−4−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. azerbaijanensis 2−2−2−2 1−1−2−1 6−5−3−2 4−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7(1)E. dogani 2−2−2−2 1−1−2−1 6−5−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 12(1)−9(1)−7(1)−7E. ioaniensis 2−2−2−2 1−1−2−1 6−4−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. johnstoni 2−2−2−2 1−1−1−1 6−5−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 12(1)−8(1)−7(1)−7E. jiangxiensis 2−2−2−2 1−1−2−1 6−5−3−2 4−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. nahidae 2−2−2−2 1−1−2−1 6−5−3−2 4−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. nasrinae 2−2−2−2 1−1−2−1 6−4−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. ornatus 2−2−2−2 1−1−2−1 6−5−3−2 4−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−8(1)−7(1)−7E. plumifer 2−2−2−2 1−1−1−1 6−5−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. rhodomela 2−2−2−2 1−1−2−1 6−5−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7(1)E. sculptus 2−2−2−2 1−1−2−1 6−5−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. seemani sp. nov. 2−2−2−2 1−1−2−1 6−4−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. segnis 2−2−2−2 1−1−2−1 6−5−3−2 3(1)−3−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. setiferus 2−2−2−2 1−1−2−1 6−5−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. spathatus 2−2−2−2 1−1−2−1 6−4−3−2 3(1)−3(1)−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7E. ueckermanni 2−2−2−2 1−1−2−1 6−4−3−2 3(1)−3−1−1 5(2)−5(1)−5(1)−5(1) 13(1)−9(1)−7(1)−7

– Trochanter III with two setae, femur II with 4setae . . . E. ueckermanni Bagheri & Beyzavi, 2013

4. Trochanter III with two setae . . . . . . . . . . . . . . . . . . . . 5– Trochanter III with one . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . E. plumifer (Halbert, 1923)

5. Without major and minor callosities in humeral region. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

– With major and minor callosities in humeralregion . . . . . . . . . . . . . . . . E. rhodomela (Koch, 1841)

6. Seta 4a present . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7– Seta 4a absent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . E. jiangxiensis Hu, Chen & Huang, 1996

7. One pair of ag setae . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8– More than one pairs of ag setae . . . . . . . . . . . . . . . . . . 9

8. Coxisternal shields fused and reticulated . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . E. segnis (Koch, 1836)

– Coxisternal shields separated and smooth . . . . . . . . . .. . . . E. ornatus Ueckermann & Smith-Meyer, 1987

9. Three pairs of ag setae, coxisternal shields fused . . 10– Two pairs of ag setae, coxisternal shields

separated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E.nahidae Geblealivand, Bagheri & Ghorbani, 2012

10. Dorsal setae bushy . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11– Dorsal setae serrated, spatulate or others . . . . . . . . 15

11. Femur II with five setae . . . . . . . . . . . . . . . . . . . . . . . . 12– Femur II with four setae . . . . . . . . . . . . . . . . . . . . . . . 13

12. Dorsal setae without hyaline, Tarsus I with 13 (1)setae . . . . E. sculptus Dogan, Ayyildiz & Fan, 2003

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– Dorsal setae with hyaline, Tarsus I with 12 (1)setae . . . . . . . . . . . . . . . . . . . . . . . E. dogani Khanjani,Asali Fayaz, Mirmoayedi & Ghaedi, 2011

13. Suranal shield ornamented, setae on coxisternalshields barbed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . E. nasrinae Khanjani & Ueckermann, 2002

– Suranal shield smooth, setae on coxisternal shieldssmooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

14. Ratio of dorso-central setae to their distances: vi/vi–vi0.78–0.93, ve/ve–ve 0.37–0.43, d1/d1–d1 0.54–0.61,e1/e1–e1 0.56–0.59, f1/f1–f1 0.61–0.62, h1/h1–h10.94 . . . . . . . . . . . . . . . . . . . . . . . . . E. seemani sp. nov.

– Ratio of dorso-central setae to their distances: vi/vi–vi 0.45, ve/ve–ve 0.17; d1/d1–d1 0.25, e1/e1–e1 0.14,f1/f1–f1 0.40, h1/h1–h1 0.54 . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . E. anauniensis (Canestrini, 1889)

15. Dorsal setae without hyaline, Femur II with four setae. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

– Dorsal setae with hyaline, Femur II with five setae . .. . . . . . . . . . . . . . . . . . . . . . E. setiferus Bagheri, Saber,Ueckermann, Ghorbani & Navaei-Bonab, 2011a

16. Dorsal setae spatulate, coxisternal shields smooth . . .. . . . . . . . . E. spathatus Ueckermann & Meyer, 1987

– Dorsal setae serrated, coxisternal shields reticulated. . . . . . E. ioaniennsis Kapaxidi & Papadoulis, 1999

Eustigmaeus seemani Khanjani, Firozfar, Mirmoayedi &Asali Fayaz sp. nov.

(Figures 1–27)

Diagnosis

Eyes present; dorsal setae bushy; three pairs of aggenitalsetae, seta 4a present; coxisternal shields fused andornamented; trochanter III with two setae; femur II withfour setae; tarsus IV without solenidion ω.

Female (n = 2). Measurements of holotype with measure-ments of paratype in parentheses: length of body (excludinggnathosoma) 303 (305); width 224 (230).

Dorsum (Figures 1–7). Dorsum covered with two irreg-ularly ornamented shields. Dimples small to large andcontains 8–15 vacuoles (Figures 1 and 2). Prodorsal shieldtriangular with four pairs of setae (vi, ve, sci, sce) anda pair of eyes 14 (15) diameter (Figure 1); opisthosomalshield bears six pairs of setae (c1, d1, d2, e1, e2, f1) andsuranal shield with two pairs (h1, h2). Dorsal setae ser-rated (Figures 1 and 3–7). Humeral shields bearing setaec2 situated ventro-laterally between coxae II–III. Lengthsof dorsal setae: vi 28 (26), ve 31 (26), sci 27 (25), sce29 (30), c1 29, c2 30 (30), d1 29 (27), d2 28 (26), e134 (36), e2 35 (30), f1 44 (42), h1 32 (34), h2 30 (29);distances between dorsal setae: vi–vi 30 (33), ve–ve 72(70), vi–ve 43 (40), sci–sci 142 (130), sce–sce 174 (162),sci–sce 39 (43), ve–sci 34 (43), c1–c1 68 (70), c1–c2 90(87), c1–d1 56 (60), d1–d1 47 (50), d1–d2 73 (75), d1–e1

66 (67), d2–d2 193 (180), e1–e1 60 (61), e1–f1 41 (46),f1–f1 70 (68), f1–h112 (16), c2–c2 189 (195), f1–h2 7(9), h1–h1 34 (36), h1–h2 23 (24), d1–e2 67 (63), h2–h279 (83), d2–e2 61 (63), e1–e2 54 (55), e2–e2 165 (157).vi/vi–vi 0.93 (0.78), c1/c1–c10.32 (0.41), d1/d1–d1 0.61(0.54), e1/e1–e1 0.56 (0.59), f1/f1–f1 0.62 (0.61), h1/h1–h1 0.94, h2/h2–h2 0.38 (0.35), h1/h2 1.06 (1.17), c1–c1:d1–d1: e1–e1: f1–f1:(0.97–1.02): (0.67–0.74): (0.86–0.90):(1.00–1.00).

Gnathosoma (Figures 8–10). Palps five segmented, palptarsus with one solenidion and a tridentate eupathidiumdistally and five simple setae; palp tibia with two setae,palp genu with two setae and palp femur with three setae(Figure 10). Chelicerae 60 (56) long and movable digit 29(30) long (Figure 8). Subcapitular setae m 18 (20), n 13(12–13) long, adoral setae or111 (11), or2 12 (13); m–m 22(22), n–n 23 (23) and m–n 10 (9) (Figure 9) – Palp coxawith one supracoxal spine, 5 (6) long (Figure 9).

Venter (Figure 11). Ventral cuticle transversely striatedbetween coxae II and III and setae c2 as like as dorsal setae,placed on the triangular humeral shields and ornamentedwith dimples. Coxisternal shields fused and reticulated andwith three pairs of setae 1a, 3a, 4a (Figure 11). Aggenitalshields almost reticulated and smooth, covered with threepairs of aggenital setae (ag1–3); Pseduanal shield coveredwith three pairs of smooth setae (ps1–3); suranal shieldsmooth and with two pairs of setae (h1–2). Length of setaela 14 (13), 1b 17 (17), 1c 14 (15), elcp 5 (5); 2b 15 (15),2c 16 (16), 3a 16 (17), 3b 13 (12), 3c 12 (11), 4a 13 (15),4b 13 (13) and 4c 12 (14); ag110 (10), ag2 12 (13), ps1 18(20), ps2 16 (16), ps3 18 (19). Distances: ag1–ag1 22 (19),ag2–ag2 40 (39), ag3–ag3 35 (33).

Legs (Figures 12–15). Legs about half length of body;leg measurements from coxa to pretarsus; leg I 191(193); leg II 160 (168); leg III 160 (170), leg IV 1188(194). Setal formulae of leg segments as follows (spe-cialized sensory setae such as solenidia in parenthe-sis and not included in total count): coxae 2–2–2–2;trochanters 1–1–2–1; femora 6–4–3–2; genua 3+κ –3+κ–1–1; tibiae 5(+1ϕ+1ϕρ)–5(+1ϕρ)–5(+1ϕρ)–5(+1ϕρ);tarsi 13(+1ω)–9(+1ω)–7(+1ω)–7 (Figures 12–15). Lengthof solenidia: I ω1 20 (20), I ω2 9 (10), II ω1 13 (14), IIIω1 5 (5). Coxa I with one supra coxal spine (elcp), 5 long(Figure 11).

Male (n = 5). Length of body (excluding gnathosoma) 240–250; width 163–176.

Dorsum (Figures 16–21). Dorsum covered with two irreg-ularly ornamented shields. Dimples small to large andcontains 7–10 vacuoles (Figures 16 and 17). Prodorsalshield triangular with four pairs of setae (vi, ve, sci,sce) and a pair of eyes 12–14 diameter (Figure 16);opisthosomal shield bears six pairs of setae (c1, d1,d2, e1, e2, f1) and suranal shield with two pairs (h1,h2). Dorsal setae serrated (Figures 16, 18–21). Humeralshields bearing setae c2 situated ventro-laterally between

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Figures 1–11. Eustigmaeus seemani sp. nov. (Female): 1. dorsal view; 2. dorsal pattern; 3. dorsal seta vi; 4. dorsal seta c1; 5. ventral setac2; 6. dorsal seta h1; 7. dorsal seta h2; 8. chelicera; 9. subcapitulum; 10. palp; 11. ventral view.

coxae II–III. Lengths of dorsal setae: vi 19–23, ve 21–26,sci 20–25, sce 21–26, c1 20–26, c2 25–30, d1 20–25,d2 18–25, e1 24–27, e2 23–26, f 30–40, h1 21–24,h2 25–32; distances between dorsal setae: vi–vi 23–26,ve–ve 55–59, vi–ve 30–33, sci–sci 115–130, sce–sce100–105, sci–sce 27–32, ve–sci 26–27, c1–c1 50–60, c1–c2 60–70, c1–d1 43, d1–d1 40–44, d1–d2 47–50, d1–e145, d2–d2 132–140, e1–e1 55–57, e1–f1 21–25, f1–f148–53, f1–h1 24–32, c2–c2 140–155, f1–h2 20–22, h1–h123–25, h1–h2 13–20, d1–e2 37–44, h2–h2 34–44, d2–e241–45, e1–e2 30–32, e2–e2 90–105. vi/vi–vi 0.82–0.88,c1/c1–c1 0.40–0.43, d1/d1–d1 0.50–0.56, e1/e1–e10.43–0.49, f1/f1–f1 0.62–0.75, h1/h1–h1 0.84–1.04,h2/h2–h2 0.72–0.73, h1/h2 0.75–0.84, c1–c1: d1–d1: e1–e1: f1–f1: (1.04–1.13): (0.83): (1.07–1.15): (1.0–1.0).

Gnathosoma (Figure 22). Palps five segmented, palp tarsuswith one solenidion, tridentate eupathidium distally and fivesimple setae; palp tibia with two setae, palp genu withtwo setae and palp femur with three setae (Figure 22).Chelicerae 50–53 long and movable digit 23–28 long.Subcapitular setae m 16–20 longer than n 8–12, adoralsetae or1 7–10, or2 10–11; m–m 13–19, n–n 18–22 andm–n 8–12. Palp coxa with one supracoxal seta 5 long(Figure 22).

Venter (Figure 23). Ventral cuticle transversely striatedbetween coxae II and III and setae c2 as like as dorsal setae,placed on the triangular humeral shields and ornamentedwith dimples. Coxisternal shields fused and reticulated andwith three pairs of setae 1a, 3a, 4a (Figure 23). Aggenital

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Figures 12–15. Eustigmaeus seemani sp. nov. (Female): 12. Leg I; 13. Leg II; 14. Leg III; 15. Leg IV.

shields smooth, covered with two pairs of aggenital setae(ag1–2); Pseduanal shield covered with three pairs ofsmooth setae (ps1–3). Length of setae la 11–15, 1b 14–17,1c 10–12, elcp 5, 2b 10–12, 2c 11–15, 3a 15–20, 3b 14–17,3c 11–15, 4a 9–13, 4b 9–15 and 4c 9–12; ag1 10–16,ag2 10–14, ps1 4–6, ps2 6–9, ps3 9–10. Distances: ag1–ag1 23–30, ag2–ag2 13–23, ps1–ps1 9–11, ps2–ps2 15–16,ps3–ps3 21–25.

Legs (Figures 24–27). Legs about half length of body;leg measurements are from coxa to pretarsus; leg I 171–176; leg II 142–165; leg III 137–145, leg IV 155–158; Setal formulae of leg segments as follows (special-ized sensory setae such as solenidia in parenthesis andnot included in total count): coxae 2–2–2–2; trochanters1–1–2–1; femora 6–4–3–2; genua 3+κ –3+κ–1–1;tibiae 5(+1ϕ+1ϕρ)–5(+1ϕρ)–5(+1ϕρ)–5(+1ϕρ); tarsi12(+2ω)–9(+2ω)–7(+2ω)–8(+1ω). Length of solenidia: I

ω1 40–45, I ω2 19–20, II ω1 28–35, II ω2 14–16, III ω15, III ω2 26–29, IV ω1 30–31. Coxa I with one supra coxalspine (elcp), 5 long (Figure 23).

Remarks

Eustigmaeus seemani sp. nov. closely resembles E. nas-rinae Khanjani & Ueckermann, 2002 in having the samechaetotaxy of the leg segmentations and shape of dorsalsetae but differs in (vs E. nasrinae): suranal shield smooth(vs ornamented); coxisternal shield reticulated (vs smooth);dimples of humeral shields larger; aggenital and pseudanalsetae smooth (vs faintly serrate). Furthermore, E. seemanisp. nov. is similar to E. dogani Khanjani et al., 2011 in hav-ing setae 4a and three pairs of aggenital setae but differs by(vs E. dogani): femur II with four setae in (vs five setae);dorsal setae without hyaline apex (vs with hyaline apex).Eustigmaeus seemani sp. nov. also resembles E. myrtea

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(Chaudhri 1965) in having bushy dorsal setae but differsby (vs E. myrtea): femur II with four setae (vs five setae).Furthermore, E. seemani sp. nov. is similar to E. plumifer(Halbert 1923) in having bushy dorsal setae but differs by(vs E. plumifer): trochanter III with two setae (vs withone seta); femur II with four setae (vs with five setae).In addition, this new species is closely resemble to E. anau-niensis (Canestrini, 1889) in having bushy dorsal setae, setac2 similar to dorsal setae, same leg chaetotaxy and setae4a present but it differs by (vs E. anauniensis): Ratio ofdorso-central setae to their distances: vi/vi–vi 0.78–0.93,ve/ve–ve 0.37–0.43, d1/d1–d1 0.54–0.61, e1/e1–e1 0.56–0.59, f1/f1–f1 0.61–0.62, h1/h1–h1 0.94 vs vi/vi–vi 0.45,ve/ve–ve 0.17; d1/d1–d1 0.25, e1/e1–e1 0.14, f1/f1–f1 0.40,h1/h1–h1 0.54. See Tables 1–2 for a comparison of theknown Iranian species of Eustigmaeus.

Etymology

The species is named in honour of Dr. Owen D. Seeman,Queensland Museum, South Brisbane, Australia, for hisexcellent collaboration with senior author.

Type material

Holotype female and one paratype female and one paratypemale from soil and litter under apple trees, Malus domesticaL. (Rosacea) and two paratype males from soil and litterunder walnut trees, Juglans regia L. (Juglandaceae), Rijabregion, Sarpolzohab vicinity in Kermanshah province (34◦28′ N, 45◦ 59′ E) 05 xii 2012, collected by Amin Firoozfar.The type materials are preserved as slide mounted speci-mens and the holotype and one female paratype and threepratype males are deposited in the Acari Collection of the

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Figures 24–27. Eustigmaeus seemani sp. nov. (Male): 24. Leg I; 25. Leg II; 26. Leg III; 27. Leg IV.

Department of Plant Protection, Faculty of Agriculture,University of Bu-Ali Sina, Hamedan, Iran and one femaleparatype and one male pratype will be deposited in theMites collection of Arachnida, Biosystematic Division,ARC-Plant Protection Research Institute, Pretoria, SouthAfrica.

Eustigmaeus segnis (Koch)(Figures 28–39)

Caliganus segnis Koch, 1836

Eustigmaeus segnis (Koch), Wood, 1973: 87.

Male (n = 2). Length of body (excluding gnathosoma)229–230; width 163–169.

Dorsum (Figures 28–32). Dorsum covered with two irreg-ularly ornamented shields. Dimples small to large and con-tains 7–13 vacuoles (Figure 28). Prodorsal shield triangularwith four pairs of setae (vi, ve, sci, sce) and a pair of eyes13 diameter (Figure 28); opisthosomal shield bears six pairsof setae (c1, d1, d2, e1, e2, f1) and suranal shield with twopairs (h1, h2). Dorsal setae faintly serrated (Figures 28–32).

Humeral shields bearing setae c2 situated ventro-laterallybetween coxae II–III. Lengths of dorsal setae: vi 47–49,ve 50–52, sci 40–41, sce 45–47, c1 37–40, c2 42–45, d140–42, d2 43–45, e1 35, e2 42–45, f1 63–72, h1 15–16,h2 22–23; distances between dorsal setae: vi–vi 16–18, ve–ve 60, vi–ve 27–30, sci–sci 100, sce–sce 128–130, sci–sce24–25, ve–sci 17–20, c1–c1 62–63, c1–c2 60–68, c1–d132–34, d1–d1 45–47, d1–d2 42–45, d1–e1 38–42, d1–e238–40, d2–d2 135, e1–e1 41–44, e1–f1 22–25, f1–f1 35–38, f1–h1 22–23, c2–c2 155–165, f1–h2 22–26, h1–h1 20,h1–h2 11–12, d1–e2 42–45, h2–h2 41–43, d2–e2 43–45,e1–e2 26–28, e2–e2 98–100. vi/vi–vi 2.72–2.93, c1/c1–c1 0.60–0.63, d1/d1–d1 0.88–0.89, e1/e1–e1 0.85–0.80;f1/f1–f1 1.80–1.90, h1/h1–h1 0.75–0.80, h2/h2–h2 0.53;h1/h2 0.68–0.70 c1–c1: d1–d1: e1–e1: f1–f1: (1.65–1.77):(1.28–1.23): (1.15–1.17): (1.0–1.0).

Gnathosoma (Figure 34). Palpi five segmented, palp tarsuswith one solenidion, a tridentate eupathidium distallyand five simple setae; palp tibia with two setae, palpgenu with two setae and palp femur with three setae(Figure 34). Chelicerae 54–59 long and movable digit28–30 long. Subcapitular setae m 10–11 n 12–14, adoralsetae or1 10–11, or2 12 long and distance m–m 15–17, n–n

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Figures 28–35. Eustigmaeus segnis (Koch) (Male): 28. dorsal view; 29. dorsal seta vi; 30. dorsal seta c1; 31. ventral seta c2; 32. dorsalseta h1; 33. chelicera; 34. subcapitulum and palp; 35. ventral view.

19–21 and m–n 7. Palp coxa with one supracoxal seta 5 long(Figure 34).

Venter (Figure 35). Ventral cuticle transversely striatedbetween coxae II and III and setae c2 as like as dorsalsetae, placed on the triangular smooth humeral shields.Coxisternal shields fused and reticulated and with threepairs of setae 1a, 3a, 4a (Figure 35). Aggenital shieldssmooth, covered with one pair of aggenital setae (ag1);Pseudanal shield covered with three pairs of smooth setae(ps1–3). Length of setae la 11–16, 1b 12–16, 1c 10–12, elcp4–5, 2b 11–13, 2c 10–11, 3a 15–17, 3b 9–12, 3c 10–13, 4a11–15, 4b 10–13 and 4c 10–12; ag1 13–15, ps1 5, ps2 6–9,ps3 10–11.

Legs (Figures 36–39). Legs about half length of body; legmeasurements are from coxa to pre-tarsus; leg I 165–173;leg II 145; leg III 143–150; leg IV 170–173. Chaetotaxyof legs as follows (the specialized sensory setae such as

solenidia in parenthesis and not included): coxae 2–2–2–2;trochanters 1–1–2–1; femora 6–5–3–2; genua 3+κ –3–1–1;tibiae 5(+1ϕ+1ϕρ)–5(+1ϕρ)–5(+1ϕρ)–5(+1ϕρ); tarsi12(+2ω)–9(+2ω) –9(+2ω)–7(+1ω). Length of solenidia:I ω1 30–35, I ω2 22–25, II ω1 20, II ω2 15–19, III ω1 4–7,III ω2 25–31, IV ω1 30–35. Coxa I with one supra coxalspine (elcp), 5–6 long (Figure 35).

Type materials

Two males were collected from soil and litter underwalnut trees, Juglans regia L. (Juglandaceae) and sweetcherry trees, Prunus avium L. (Rosaceae), Rijab region,Sarpolzohab vicinity in Kermanshah province (34◦ 28′ N,45◦ 59′ E) 8 December 2011 and 20 June 2012 byAmin Firozfar. The materials are preserved as slidemounted specimens deposited in the Acari Collection ofthe Department of Plant Protection, Faculty of Agriculture,University of Bu-Ali Sina, Hamedan, Iran.

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Figures 36–39. Eustigmaeus segnis (Koch) (Male): 36. Leg I; 37. Leg II; 38. Leg III; 39. Leg IV.

Distribution

Germany (Koch 1836); Italy (Berlese 1885); NorthAmerica (Summers 1957; Summers and Price 1961);Russia (Kuznetzov 1977); Africa (Meyer and Ueckermann1989); China (Hu et al. 1996); Poland (Kazmierski et al.1997); Iran (Khanjani and Ueckermann 2002); Turkey(Dogan 2005; Donel and Dogan 2011).

Eustigmaeus rhodomela (Koch)(Figures 40–51)

Celaeno rhodomela Koch, 1841.

Eustigmaeus rhodomela Wood, 1973

Eustigmaeus fani Dogan, 2005; Faraji et al., 2007

Female (n = 3). Colour in life red. Idiosoma oval. Length ofbody (excluding gnathosoma) 335–350; width 280–300).

Dorsum (Figures 40–44). Dorsum covered with two irreg-ularly ornamented shields. Dorsal shields covered withcircular dimples, each bearing 7–12 vacuoles. Prodorsalshield triangular with four pairs of setae (vi, ve, sci, sce) and

a pair of eyes 14–15 diameter (Figure 40); Opisthosomalshield bears six pairs of setae (c1, d1, d2, e1, e2, f1) andseveral pairs of visible fossettes and suranal shield withtwo pairs of setae (h1–2). Humeral shields bearing setae c2situated ventro-laterally between coxae II–III. Dorsal setaesmooth with few serration and with hyaline sheaths (exceptseta c2) (Figures 40–44). Lengths of dorsal setae: vi 46–50,ve 56–60, sci 40–42, sce 43–45, c1 47–48, c2 25, d1 50–53,d2 38–41, e1 55, e2 43–45, f1 56, h1 37–40, h2 30–31; dis-tances between dorsal setae: vi–vi 26–28, ve–ve 90–100,vi–ve 52–56, sci–sci 170–180, sce–sce 220–245, sci–sce45–47, ve–sci 42–46, c1–c1 107–110, c2–c2 200–260, c1–d1 88–90, d1–d1 130–150, d1–d2 72–78, d1–e1 80–82, d1–e2 58–60, d2–e2 81–87, d2–d2 265–280, e1–e1 120–132,e1–f1 35–40, f1–f1 80–92, f1–h1 26–30, h1–h1 30–31,h1–h2 23–24, h2–h2 65–77, vi/vi–vi 1.77–1.79, c1/c1–c10.44, d1/d1–d1 0.35–0.38, e1/e1–e1 0.42–0.45, f1/f1–f1 0.60–0.70, h1/h1–h1 1.23–1.29, h2/h2–h2 040–0.46,h1/h2 1.23–1.29, c1–c1: d1–d1: e1–e1: f1–f1 (1.20–1.34):(1.62–1.63): (1.43–1.50): (1.00–1.00).

Gnathosoma (Figures 45 and 46). Punctated, palpi fivesegmented, palp tarsus with one solenidion, a tridentateeupathidium distally and five simple setae; palp tibia withtwo setae, palp genu with two setae and palp femur with

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three setae (Figure 46). Chelicerae punctated, 81–85 longand one half longer than movable digit 40–45 long(Figure 45). Subcapitular setae m 20–21 as long as n 20–21,adoral setae or1 12–13, or2 10–11; m–m smaller than dis-tance of n–n, m–m 25–28, n–n 30–32. Palp coxa with onesupracoxal seta 6 long (Figure 46).

Venter (Figure 47). Ventral cuticle transversely striatedbetween coxae II and III and setae c2 short, placed onthe triangular smooth humeral shields. Humeral regionswith two pairs of callosities, major callosities almosttwice as long as minor callosities [35–40, 19–20], cov-ered with pores (Figure 47). Coxisternal shields separatedwith polygonal dimples and three pairs of setae 1a, 3a,4a (Figure 47). Surface of coxae slightly reticulated andpunctated. Aggenital shields with polygonal dimples andpunctated and covered with three pairs of setae (ag1–3);Pseudanal shield covered with three pairs of smooth setae

(ps1–3); suranal shield punctated and with two pairs ofsetae (h1–2).

Length of setae la 20–23, 1b 24–25, 1c 23–24, elcp5, 2b 20–25, 2c 18–20, 3a 24–25, 22–25, 3c 21–24, 4a20–22, 4b 22–25 and 4c 21. Three pairs of aggenital setae(ag1–3) and three pairs of pseudanal setae (ps1–3); mea-surements of setae: ag1 20 (20), ag2 24 (20), ag3 23 (20),ps1 14–18, ps2 17, ps3 19–20. Distances: ag1–ag1 14–16,ag2–ag2 43–52 ag3–ag3 35–46, ps1–ps1 10–19, ps2–ps216–28, ps3–ps3 21–31. All setae smooth (Figure 47).

Legs (Figures 47–51). Legs about half length of body;leg measurements are from coxa to pretarsus; lengthof leg I 230; leg II 187–195; leg III 185–190, leg IV227–230. Setal formulae of leg segments as follows(solenidia in parenthesis and not included): coxae I–IV: 2–2–2–2; trochanters I–IV: 1–1–2–1; femora I–IV:6–5–3–2; genua I–IV: 3(κ)–3(κ)–1–1; tibiae I–IV:

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Figures 48–51. Eustigmaeus rhodomela (Koch) (Female): 48. Leg I; 49. Leg II; 50. Leg III; 51. Leg IV.

5(+ϕ–ϕp)–5(+ϕp)–5(+ϕp)–5(+ϕp); tarsi I–IV: 13 (+ω)–9(+ω) –7(+ω)–7(+ω). Length of solenidia: I ω 15–20, IIω 12–15, III ω 5–7; ϕ I 9–10, ϕp I 25–27, ϕp II 16–18, ϕpIII 15–17; κ I 14–15, κ II 5–6. Coxa I with one supra coxalspine (elcp), 5–6 long (Figure 47).

Discussion

The Iranian specimens of E. rhodomela (Koch) exhibitmost features of the Turkish E. rhodomela given by Dönelet al. (2011) except for (vs Turkish specimens): humeralshield smooth (vs decorated with dimples); aggenital setaag2 long and reaching beyond the base of ag3 (vs shortand not reaching beyond base of ag3); suranal shield withonly punctations (vs punctate and dimpled); dorsal seat d1does not reached to the base of seta e2 (vs reaches base ofe2). Furthermore, the Iranian specimens closely resembles

E. fani as given by Dogan (2005) from Turkey but differsby (vs E. fani): dorsal shield with several pairs of visiblefossettes (vs fossettes absent); aggenital setae ag1 and ag3long, reached to the base setae ag2 and ps3, respectively(vs shorter and not reaching those bases); setae c2 smooth(vs serrate). Also the Iranian mites are very similar to thespecimens described by Summers and Price (1961) fromNorth America, differing only in have a shorter idiosoma(335–350 vs 423 ± 6).

Material examined

Three females were collected from mosses from Uromiavicinity, West Azerbaijan province, Iran, 2 May 2010,coll. M. Khanjani. The specimens are deposited in theCollection of Acarology Laboratory, University of Bu-AliSina, Hamedan, Iran.

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Distribution

Germany (Koch 1841); North America (Summers andPrice 1961); Italy (Wood 1973); Greece (Kapaxidi andPapadoulis 1999); Turkey (Dogan 2005; Dönel et al. 2011).This species is a new record for the Iranian acarofauna.

AcknowledgementThe authors wish to thank Prof. Salih Dogan (Erzincan University,Arts & Sciences Faculty, Department of Biology, Erzincan,Turkey) for providing some of the literature used in this paper.

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Darvishzadeh I, Kamali K. 2009. Faunistic survey of Mite (Acari)associated with grapevine yards in Safiabad, Khuzestan, Iran.Journal of the Entomological Research. 1:79–93 (In Persianwith English abstract).

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Dogan S, Ayyildiz N, Fan Q-H. 2003. Descriptions of TwoNew Species and a Newly Recorded Species of EustigmaeusFrom Turkey (Acari: Stigmaeidae. Systematic & AppliedAcarology. 8:131–144.

Dogan S, Dönel G, Özçelik S. 2011. A New Eyeless Mite Speciesof the Genus Eustigmaeus Berlese (Acari: Stigmaeidae) FromTurkey. Turkish Journal of Zoology. 35:175–181.

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