Aculus lorestaniensis, Lotfollahi & Hayatolgheyb & Jafari & Shakarami, 2017

Lotfollahi, Parisa, Hayatolgheyb, Salman, Jafari, Shahriar & Shakarami, Jahanshir, 2017, One new Aculus species (Acari: Trombidiformes: Eriophyidae) on Glycyrrhiza glabra from Lorestan province, Iran, Persian Journal of Acarology 6 (1), pp. 25-30 : 26-27

Aculus lorestaniensis sp. nov. ( Fig. 1 )

Description

Female (n = 6) – Body spindle-shaped, 173 (145–190), 45 (42–50) thick, 58 (48–58) wide. Gnathosoma 31 (30–33) projecting obliquely downwards, chelicerae 26 (24–32), palp setae ep 2, palp genual setae d 4 (4–5), unbranched. Prodorsal shield 38 (36–42) including frontal lobe, 46 (46– 48) wide, sub-triangular in anterior shape with a thick broad based frontal lobe, ventrally with distally pointed process, 6 (4–8), over gnathosomal base. Shield pattern weakly reticulated, composed of a short median line at rear third of prodorsal shield, a complete admedian, a complete first submedian and a relatively short second submedian line on the posterior half of the prodorsal shield; 2 transverse lines cross longitudinal lines and delimit 18 cells; many light colored tiny spots on whole prodorsal shield. Dorsal tubercles sc on rear shield margin, 20 (no variation) apart, setae sc 34 (no variation), directed divergently upward. Leg I 27 (27–31), femur 10 (7–10), genu 4 (4–5), tibia 5 (5–7), tarsus 6 (6–8), ω 8.5 (8–10) distally a little enlarged and tapered, empodium simple, 6.5 (6–7), 4-rayed; femoral setae bv 12 (11–13), genual setae l′′ 17 (17–22), tibial setae l′ 5.5 (5–7), tarsal setae ft′ 17 (17–19), setae ft′′ 27 (20–27). Leg II 25 (24–28), femur 8 (8–10), genu 3.5 (3–4), tibia 4 (4–5), tarsus 7 (7–8), ω 9 (8.5–10) distally a little enlarged and tapered, empodium simple, 6 (5.5–6), 4-rayed; femoral setae bv 11 (9–14), genual setae l′′ 7 (5–8), tarsal setae ft′ 8 (7–8), setae ft′′ 22 (21–23). Coxae with scarce and fine dashes, someone lined; setae 1b 11 (10–12), tubercles 1b 12 (11–13) apart, setae 1a 23 (23–28), tubercles 1a 10 (9–11) apart, setae 2a 37 (30–42), tubercles 2a 28 (25–28) apart. Prosternal apodeme 7 (6–7). Opisthosoma dorsally arched, with 17 (16–19) dorsal semiannuli, 60 (52–60) ventral semiannuli (counted from first annulus after coxae II), 6 (5–6) semiannuli between coxae and genital coverflap. Microtubercles: triangular on posterior margin of dorsal semiannuli, spiny circular on posterior area of ventral semiannuli, last four ventral semiannuli with elongated and linear microtubercles. Setae c2 19 (13–24) on ventral semiannulus 13 (11–13), setae d 43 (30–50) on ventral semiannulus 26 (22–26); setae e 10 (8–15) on ventral semiannulus 40 (36–40); setae f 15 (13–20) on ventral semiannulus 56 (51–56); 4 annuli behind setae f. Setae h2 47 (36–47) very fine at apex, h1 4 (no variation). Genital coverflap 13 (10–13), 23 (22–23) wide, with 9–10 longitudinal striae; setae 3a 50 (30–50), 20 (17–21) apart.

Male (n = 2) – Similar in shape and prodorsal shield arrangement to female. Body 162–173. Prodorsal shield 37–40; setae sc 27–30; opisthosoma with 17–18 dorsal semiannuli and 53–54 ventral semiannuli; setae 3a 42.

Figures

Figure 1. Aculus lorestaniensis sp. nov. (female) – AD. Prodorsal shield; AL. Lateral view of anterior body region; CG. Female coxigenital region; em. Empodium; IG. Internal female genitalia; LO. Lateral view of annuli; L1. Leg I; pg. palp genua; 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.