Aceria sadeghii, Honarmand & Lotfollahi & Xue, 2024

Honarmand, Arash, Lotfollahi, Parisa & Xue, Xiao-Feng, 2024, Aceria sadeghii sp. nov. (Acari: Eriophyidae) from Northeast Iran, Persian Journal of Acarology 13 (1), pp. 21-28 : 22-25

Aceria sadeghii sp. nov. ( Fig. 1 )

http://zoobank.org/ urn:lsid:zoobank.org:act:3C3162B3-74D4-43C0-A5BF-E868D7CE222B

Description

FEMALE (number of measured specimens = 10) – Body vermiform, 290 (240–290, including gnathosoma), 50 (50–55) wide, 53* (50–55) thick. Gnathosoma 20 (17–21) projecting obliquely downwards, pedipalp coxal setae ep 3 (no range), dorsal pedipalp genual setae d 6 (6–7), unbranched, palp tarsus setae v 1 (no variation), cheliceral stylets 18 (16–18). Prodorsal shield subtriangular 26 (26–28), including frontal lobe, 30 (26–30) wide; with rounded frontal lobe 4 (3–4) over gnathosomal base. Shield pattern composed of faint bumplike admedian lines; median and submedian lines absent. Some strong dashes present on lateral sides of prodorsal shield, and some granules between prodorsal shield and coxa region. Tubercles of scapular setae sc on rear shield margin, 15 (14–16) apart, scapular setae sc 21 (19–22), directed backward. Leg I 32 (29–32), femur 9 (8–9), genu 5 (4–5), tibia 5 (5–6), tarsus 8 (8–9), tarsal solenidion ω 9 (9–10), curved down, distally slightly knobbed, empodium 5 (no range), simple, 5-rayed; basiventral femoral setae bv 12 (11–14), antaxial genual setae l′′ 25 (24–26), paraxial tibial setae l′ 7 (6–8), paraxial fastigial tarsal setae ft′ 14 (12–15), antaxial fastigial tarsal setae ft′′ 28 (24–28), paraxial unguinal tarsal setae u' 3 (3–4). Leg II 28 (26–28), femur 7 (7–9), genu 4 (4–5), tibia 4 (3–4), tarsus 8 (7–8), solenidion ω 9 (9–11), curved down, distally slightly knobbed, empodium 5 (no range), simple, 5-rayed; femoral setae bv 14 (13–15), genual setae l′′ 11 (9–12), tarsal setae ft′ 6 (6–7), setae ft′′ 28 (27–29), setae u' 3 (no range). Coxae I ornamented with some strong dashes and coxae II with few microtubercles; setae 1b 10 (8–10), tubercles 1b 9 (8– 9) apart, setae 1a 26 (24–26), tubercles 1a 6 (6–7) apart, setae 2a 43 (39–46), tubercles 2a 18 (18– 20) apart, prosternal apodeme 3 (2–3). Opisthosoma dorsally arched with 91 (79–91) dorsal semiannuli, with elliptical microtubercles close to the rear margin, and 72 (70–76) ventral semiannuli, with elliptical microtubercles; 5 (5–6) semiannuli with fine microtubercles between coxae and genital coverflap; last 7 (6–7) ventral semiannuli of the opisthosoma with elongated microtubercles on the ventral side. Setae c2 31 (28–31), on ventral semiannulus 9 (8–10); setae d 65 (58–67), on ventral semiannulus 23 (20–23); setae e 10 (8–11), on ventral semiannulus 37 (36–40); setae f 22 (20–23), on ventral semiannulus 64 (63–68), 8 (7–8) annuli after setae f. Setae h2 120 (105–130), setae h1 6 (5–6). External genitalia 13 (12–14), 21 (19–21) wide, coverflap with 9 (8–10) longitudinal striae, setae 3a 20 (18–22), 15 (13–15) apart; with two transversal rows of granulated lines at the genital coverflap base that interrupted at middle. Internal genitalia with anterior, trapezoidal transversal apodeme, spermathecae ovoid and oriented posterolaterad; longitudinal bridge relatively long as long as five times of spermathecae length and spermathecal tubes short.

MALE (number of measured specimen = 1) – Body vermiform, 230 (including gnathosoma), 48 wide. Gnathosoma 14 projecting obliquely downwards, chelicerae 14, palp coxal setae ep 3, palp genual setae d 6, unbranched, palp tarsus setae v 1. Prodorsal shield 28, including frontal lobe, 27 wide, frontal lobe 2. Shield pattern similar to that of female. Tubercles of scapular setae sc on rear shield margin, 15 apart, setae sc 19. Leg I 30, femur 8, genu 4, tibia 5, tarsus 8, solenidion ω 9, curved down, distally slightly knobbed, empodium 4, simple, 5-rayed; femoral setae bv 12, genual setae l′′ 23, tibial setae l′ 6, tarsal setae ft′ 12, setae ft′′ 23, paraxial unguinal tarsal setae u' 3. Leg II 26, femur 7, genu 4, tibia 4, tarsus 7, solenidion ω 11, curved down, distally slightly knobbed, empodium 5, simple, 5-rayed; femoral setae bv 11, genual setae l′′ 10, tarsal setae ft′ 6, setae ft′′ 27, paraxial unguinal tarsal setae u' 3. Coxae similar to those of female; setae 1b 10, tubercles 1b 9 apart, setae 1a 19, tubercles 1a 6 apart, setae 2a 35, tubercles 2a 18 apart. Prosternal apodeme 3. Opisthosoma dorsally arched with 74 dorsal semiannuli; 68 ventral semiannuli; 6 semiannuli between coxae and genital region. Setae c2 28 on ventral semiannulus 9, setae d 56 on ventral semiannulus 19; setae e 8 on ventral semiannulus 33; setae f 20 on ventral semiannulus 59, 7 annuli after setae f. Setae h2 80; setae h1 4; setae 3a 18, 10 apart.

Type host plant Krascheninnikovia ceratoides (L.) Güldenstädt ( Amaranthaceae ), Pamirian Winterfat.

Relation to the host plant Leaf galls consisting of distortions but with normal trichome density ( Fig 2 .)

Type locality

Borselan village , in the central district of Quchan County, Razavi Khorasan Province, northeast Iran, (36° 56' 43.2" N, 58° 24' 18.7" E), 2124 m above sea level, coll. A. Honarmand, 24 June 2023 .

Type material

Holotype: female, on a microscope slide (slide code: AH02–N 10); paratypes: 9 females (specimen's codes: AH02–N 1 in single slide, AH02–N 2 in single slide, AH02–N 3 and AH02–N 4 in single slide; AH02–N 5 in single slide, AH02–N 6 and AH02–N 7 in single slide; AH02–N 8 and AH02– N 9 in single slide and;) and one male (slide code: AH02–NM) mounted on separate microscope slides (AH02–N 1 and AH02–NM in a single slide).

Other material

Mites extracted from the same sample as the type specimens were preserved in part in 70% ethanol ( Walter & Krantz 2009) (tube code: AH02–N).

Etymology

The new species is named in honor of Hussein Sadeghi Namaghi, professor at the Ferdowsi University of Mashhad, for his dedication to the Acarology and Entomology of Iran.

Differential diagnosis

Aceria sadeghii sp. nov. is similar to Aceria zumetae Boczek & Petanovic, 1994 as the only other eriophyoid mite on Krascheninnikovia ceratoides (L.) Güldenstädt ( Amaranthaceae ), that caused small galls on plant leaves in Spain. Prodorsal shield pattern in Aceria zumetae composed median, admedian and submedian lines whereas in the new species median and submedian lines are absent; scapular setae sc 21 (19–22) in Aceria sadeghii sp. nov. and 45 in A. zumetae . The new species has 79–91 dorsal semiannuli and 8–10 longitudinal striae on genitalia coverflap, while Aceria zumetae has 70–82 dorsal semiannuli and 12–14 longitudinal striae on the coverflap. Compared with other Aceria species associated with Amaranthaceae plants, the new species appears to be close to Aceria vanensis Kiedrowicz, Denizhan, Bomberek, Szydlo & Skoracka, 2016 , which was originally found as vagrant mite on Amaranthus retroflexus L. (redroot amaranth) from Turkiye. Prodorsal shield in both species composed of only incomplete admedian lines, but in Aceria sadeghii sp. nov. are twice as long as A. vanensis ; prodorsal shield in A. sadeghii sp. nov. has rounded frontal lobe 4 (3–4), whereas it lacks frontal lobe in A. vanensis . Furthermore, they exhibit other resemblances that include shape of internal genital, setae 3a length (20 (18–22) in A. sadeghii sp. nov. and 21 (21–25) in A. vanensis ) and setae d 65 (58–67) in A. sadeghii sp. nov. and 63 (58–70) in A. vanensis ). The new species is distinguishable by scapular setae sc (21 (19–22) in A. sadeghii sp. nov. and 26 (26–35) in A. vanensis ), setae e (10 (8–11) in A. sadeghi sp. nov. and 45 (45–55) in A. vanensis ), f (22 (20–23) in A. sadeghii sp. nov. and 30 (25–48), empodium ray's number (5 in A. sadeghii sp. nov. and 6 in A. vanensis ), and genital coverflap ornamention [9 (8–10) longitudinal striae in A. sadeghii sp. nov. versus smooth in A. vanensis ].

Figures

Figure 1. Line drawings of Aceria sadeghii sp. nov. – AD. Prodorsal shield; AL. Lateral view of anterior body region; CG. Female coxigenital region; em. Empodium; GM. Male genital region; IG. Internal female genitalia; LO. Lateral view of annuli; L1. Leg I; PM. Lateral view of posterior opisthosoma. Scale bar: 10 μm for AD, AL, CG, IG, PM; 5 μm for LO, L1; 2.5 μm for em.

Figure 2. Leaves' distortions of Krascheninnikovia ceratoides (L.) Güldenstädt by Aceria sadeghii sp. nov. Scale bar: 10 mm.