Aegyptobia tragardhi Sayed, 1950

Khanjani, Masoumeh, Khanjani, Mohammad & Seeman, Owen D., 2012, The false spider mites of the genera Aegyptobia Sayed and Phytoptipalpus Trägårdh (Acari: Tenuipalpidae) from Iran, Zootaxa 3295, pp. 30-58 : 43-44

Aegyptobia tragardhi Sayed, 1950

( Figs. 37–45 )

Aegyptobia ueckermanni Khosrowshahi & Arbabi, 1997: 8 –9, syn. nov.

Diagnosis. Hysterosoma with 13 pairs of setae (f2 present). Anterior margin of prodorsum rounded. Dorsal setae simple to narrowly lanceolate, serrate. Prodorsum medially with longitudinal striae and laterally with longitudinal to oblique striae; hysterosoma with transverse striation anteriorly, arched striation medially. Intercoxal area between coxae I smooth, between coxae II with transverse striae; area between setae 3a to 4a smooth; area between setae la to 3a and posteriad 4a with broad, transverse striae. Ventral shield with transverse striae, genital plate smooth; setae ps1–3 arranged along internal margin of anal plates. Palp tibia with 1 seta; palp genu without seta and palp femur with 2 setae. Palp tarsal phaneres directed anteriorly, solenidion 1/2 to 2/3 length of eupathidia. Trochanter III with 2 setae; genu III with 1 seta; all leg setae simple. Tarsal claws uncinate.

Description

FEMALE (n = 10). Color in life red. Idiosoma oval. Length of body (excluding gnathosoma) 185–220; (including gnathosoma) 233–277; width 107–135; length of leg I 73 –91; leg II 73 –96; leg III 71 –82; leg IV 74 –86.

Dorsum ( Fig. 37 ). Anterior margin of prodorsum rounded ( Fig. 37 ). Prodorsum medially with longitudinal striae and laterally with longitudinal to oblique striae, forming 3 bands; hysterosoma with transverse striation anteriorly, arched striation medially and with 2 pairs of pore-like structures ( Fig. 37 ). Propodosomal setae and c1, c2, c3, d1 simple and serrate; d2, d3, e1, e2, e3, f2, f3, h1, h2 narrowly lanceolate. Lengths of dorsal setae: v 2 11–20, sc 1 14–21, sc 2 16–24, c 1 16–20, c 2 12–19, c 3 12–23, d 1 8–12, d 2 10–18, d 3 15–21, e1 7 –9, e 2 9 –13, e 3 17 –24, f 2 9–18, f 3 15–23, h 1 10–15, h 2 14–21; distances between dorsal setae: v 2 –v 2 34 – 43, v 2 –sc 1 30–34, sc1–sc1 75–84, sc2–sc2 89–98, sc1–sc 2 21–33, c1–c1 40–47, c1–c 2 11–26, c2–c 3 8–14, c2–c2 61–94, c3–c3 100–117, c1 –d 1 23–28, c2–d 2 28–33, d1–d 1 25–29, d1–d 2 22–27, d2–d 3 15–23, d2–d2 73–79, d3–d3 91–99, d1– e 1 33–40, e1– e 1 21–23, e1– e 2 17–23, e2– e 2 56–63, e2– e 3 17–25, e3– e 3 84–91, e3–f 2 12–17, f2–f2 56–60, f2–f 3 12–17, f3–f3 72–80, f3–h 2 13–17, h1–h 1 21–26, e3–f 3 12–16, h1–h 2 15–19, h2–h2 53–60, e1–h1 33–42, f2–h 2 17–24, d2– e 2 26–30, d3– e 3 13–31.

Venter ( Fig. 38 ). Intercoxal area between coxae I smooth, between coxae II with transverse striae; area between setae 3a to 4a smooth; area between setae la to 3a and posteriad 4a with broad, transverse striae ( Fig. 38 ); length of setae la 41–61, 1 b 17–22, 1 c 10–16, 2 b 12–17, 2 c 20–24, 3 a 44–60, 3 b 10–16, 4 a 43–56, and 4b 10–15. Ventral setae very long, setae 1a long and almost as long as 3a, 4a and about 3 times longer than 1b, 2b and aggenital setae (ag) 11–14. Ventral shields with transverse striae and genital shields smooth ( Fig. 38 ); aggenital (ag) setae almost as long as genital setae (g1–2); inner pair (g1) in line with outer pair (g2); anal setae (ps1–3) shorter than genital setae, arranged along internal margin of anal plates; setae g 1 11–16, g 2 14–20, ps 1 9–13, ps 2 7–13, ps 3 7–10. Distances between genital area setae: ag–ag 11–14, g1–g 1 22–27, g2–g2 34–40, g1–g2 5–8.

Gnathosoma ( Figs. 38–41 ). Rostrum extending to middle of genu I ( Fig. 38 ); palp 5-segmented, palp tarsus with solenidion and 2 eupathidia, solenidion about 2/3 the length of eupathidia, directed anteriorly; palp tibia with 2 setae, palp genu bare, palp femur with 1 dorsal seta ( Fig. 41 ). Subcapitulum with seta m 6–12, distance m–m 10– 15. Chelicerae as in Fig. 40 .

Legs ( Figs. 42–45 ). Setal formulae of leg I–IV segments as follows (solenidia in parentheses): coxae 2-2-1-1; trochanters 1-1-2-1; femora 3-3-2-1; genua 1-1-1-0; tibiae 4-4-3-3; tarsi 9(1) - 9(1)-5-5. Tarsal claws uncinate.

MALE. Unknown.

Material examined. Two females collected from leaves of apple trees, Malus domestica (L.) ( Rosaceae ), IRAN: Hamedan Province, Hamedan (34°45ʹN, 48°26ʹE, altitude 2147 m. a. s. l.), 26 September 2008, coll. E. Rostami; 15 females collected from pine trees, Pinus abies (L.) (Pinnacae), IRAN: Hamedan Province, Hamedan (35°48ʹN 48°29ʹE, altitude 1810 m. a. s. l.), 8 November 2008, coll. M. Khanjani; 13 females collected from juniper trees, Juniperus communis (L.) (Cupressacea), same locality, 17 October 2008 - 13 July 2010, coll. M. Khanjani; 2 females collected from walnut trees, Juglans regia (L.) ( Juglandaceae ), same locality, 12 October-16 November 2008, coll. M. Khanjani; 1 female collected from plum tree Prunus domestica (L.) ( Rosaceae ) but close to conifer, same locality, 6 November 2008, coll. M. Khanjani. Deposited—CALBS and QMA (2 females).

Comparative material. Type specimens of A. ueckermanni deposited at Zoology Department of Plant Pests & Diseases Research Institute Evin, Iran, Accession number: T-1122., lent from Dr. M. Khosrowshahi.

Remarks. We examined one paratype of Aegyptobia ueckermanni ( Khosrowshahi and Arbabi, 1997) and found that it exhibits the same dorso-ventral pattern, shape and length of dorso-ventral setae, and leg chaetotaxy as Aegyptobia tragardhi Sayed, 1950 . Therefore, we consider A. ueckermanni syn. nov. a junior synonym of A. tragardhi . One minor difference is that, according to Sayed (1950), the rostrum extends to the distal end of tibia I, but in the Iranian specimens the rostrum extends to the middle of genu I. We consider this difference minor and possibly reflecting a difference in specimen preparation.

Figures

FIGURES 37 – 41. Aegyptobia tragardhi Sayed (female): 37. Dorsum; 38. Venter; 39. Subcapitulum; 40. Chelicerae; 41. Palp.

FIGURES 42 – 45. Aegyptobia tragardhi Sayed (female): 42. Leg I (Right); 43. Leg II (Left); 44. Leg III (Right); 45. Leg IV