Aceria lobolinguae Lotfollahi

Lotfollahi, Parisa, Irani-Nejad, Karim Haddad & Lillo, Enrico De, 2014, Eriophyoid mites (Acari: Trombidiformes: Eriophyoidea) of Rosales trees in Iran: two new species and three new records, Zootaxa 3861 (1) : -

Aceria lobolinguae Lotfollahi & de Lillo

( Fig. 2 )

Description. FEMALE (n=10). Body vermiform, 155 (150–170), 44 (43–45) thick, 50 (43–55) wide. Gnathosoma 28 (27–30) projecting obliquely downwards, chelicerae 23 (20–26), palp genual setae d 5 (4–5), unbranched. Prodorsal shield 34 (30–37) including frontal lobe, 40 (37–43) wide, semi-elliptical in anterior shape with a long, thin, basally-flexible frontal lobe, 10 (8–13), over gnathosomal base. Shield pattern indistinct and composed of granules arranged to form a faint median, two admedian and discontinuous submedian lines; many granules present on lateral sides of prodorsal shield. Dorsal tubercles sc on rear shield margin 22 (20–23) apart, setae sc 30 (26–33), directed posteriorly. Leg I 32 (28–32), femur 9 (7–10), genu 5, tibia 7 (5–7), tarsus 9 (8–11), ω 9 (8–9) distally knobbed, empodium simple, 5 (4–5), 5-rayed; femoral setae bv 10 (9–10), genual setae l′′ 20 (20–25), tibial setae l ′ 8 (6–8), tarsal setae ft ′ 15 (14–18), setae ft′′ 25 (25–28). Leg II 28 (22–28), femur 8 (7–9), genu 5 (4–5), tibia 4 (3–5), tarsus 10 (7–10), ω 10 (9–10) distally knobbed, empodium simple, 5 (4–5), 5-rayed; femoral setae bv 10 (9–10), genual setae l′′ 8 (7–12), tarsal setae ft ′ 7 (6–8), setae ft′′ 27 (24–31). Coxae with granules; coxal setae 1b 7 (4–7), tubercles 1b 9 (9–11) apart, setae 1a 34 (32–37), tubercles 1a 8 (7–9) apart, setae 2a 46 (43–49), tubercles 2a 20 (18–23) apart. Prosternal apodeme 5 (3–5). Opisthosoma dorsally arched, with 45 (42–47) dorsal semiannuli, 59 (54–65) narrow ventral semiannuli (counted from first annulus after coxae II), 5 (4–5) semiannuli between coxae and genital coverflap, and 2–3 transverse rows of lined granules at base of genital coverflap. Microtubercles: elliptical on dorsal semiannuli, circular on posterior area of ventral semiannuli, gradually becoming more numerous and elongated on rear 1/3 of opisthosoma; no microtubercles present in middle of dorsum starting from semiannulus 32 (28–37) until fourth semiannulus from rear. Setae c2 20 (16–23) on ventral semiannulus 11 (7–11), setae d 55 (48–60) on ventral semiannulus 23 (19–23); setae e 7 (6–10) on ventral semiannulus 38 (34–41); setae f 23 (18–28) on ventral semiannulus 55 (50–60). Last 4 ventral semiannuli with numerous elongated linear microtubercles. Setae h2 75 (71–100) very fine at apex, h1 2. Genital coverflap 10 (9–11), 18 (16–20) wide, with 10 (10–13) longitudinal striae; setae 3a 15 (13–16) apart, 17 (14–18). MALE (n=2). Similar to female, 136–138. Prodorsal shield 32; setae sc 23–25. Opisthosoma with 37 dorsal semiannuli and 54 ventral semiannuli.

Type host plant. Elaeagnus angustifolia L. ( Elaeagnaceae ), Oleaster or Russian olive.

Relation to the host plant. Vagrant on leaves; no apparent damage was observed.

Type locality. Azarshahr, Iran (37°46'24"N, 45°57'20"E), 1,353 m above sea level; coll. P. Lotfollahi, 2 August 2011.

Type material. Holotype: single female on a microscope slide (EA-IEA-AR11L-1). Deposited in the Acarology Laboratory, Department of Plant Protection, Faculty of Agriculture, University of Tabriz, Tabriz, Iran. Paratypes: 25 females, 2 males and 1 nymph mounted on separate microscope slides.

Other material. Mites preserved in Oudemans’ fluid as extracted from the same sample as the type specimens.

Etymology. The species epithet, lobolinguae , is a name in apposition and comes from the Greek λoβóς, lobos (meaning elongate projection) plus the Latin lingua, -ae (substantive) (meaning tongue) and refers to the tonguelike shape of the frontal lobe.

Differential diagnosis. The new species shares some features in common with Aceria angustifolia Denizhan, Monfreda , de Lillo et Çobanoglu, 2008. However, the new species has a frontal lobe on the prodorsal shield whereas a lobe is obviously absent in A. angustifolia . In addition, A. angustifolia is characterized by having a smaller prodorsal shield (28 long and 20 wide versus 34 long and 40 wide in A. lobolinguae n. sp.); more numerous opisthosomal annuli (75 annuli versus 45 dorsal and 59 ventral semiannuli in A. lobolinguae n. sp.) and the presence of microtubercles on the entire opisthosoma (microtubercles are absent along the middorsum of A. lobolinguae n. sp.).

Figures

FIGURE 2. Schematic drawings of Aceria lobolinguae n. sp.: AL. Lateral view of anterior body region; AD. Prodorsal shield; CG. Female coxigenital region; em. Empodium; IG. Internal female genitalia; LO. Lateral view of annuli; L 1. Leg I; PM. Lateral view of posterior opisthosoma. Scale bar: 10 Μm for AD, AL, CG, IG, PM; 5 Μm for LO, L 1; 2. 5 Μm for em.