Phyllocoptruta smilanus, Song, Zi-Wei, Xue, Xiao-Feng & Hong, Xiao-Yue, 2009

Song, Zi-Wei, Xue, Xiao-Feng & Hong, Xiao-Yue, 2009, Seven new species of Phyllocoptini from Tibet Autonomous Region, China (Acari: Eriophyidae: Phyllocoptinae), Zootaxa 2291, pp. 1-23 : 19-20

Phyllocoptruta smilanus sp. nov.

( Figs 13 & 14 )

Description. FEMALE: (n = 19) Body fusiform, 200 (199–208), 65 (65–68) wide, 70 (70–73) thick; light yellow. Gnathosoma 28 (26–28), projecting obliquely down, pedipalp coxal seta (ep) 4 (3–4), dorsal pedipalp genual seta (d) 9 (8–9), cheliceral stylets 24 (22–24). Prodorsal shield 44 (42–44), 59 (54–59) wide; prodorsal shield with round frontal lobe; shield design with incomplete median and submedian lines, complete admedian lines; median line only present 1/3 of shield and subparallel with admedian lines. Scapular tubercles ahead of shield rear margin, 21 (20–21) apart, scapular setae (sc) 7 (6–7) projecting centrad. Coxal plates with short lines; anterolateral setae on coxisternum I (1b) 12 (10–12), 12 (12–13) apart, proximal setae on coxisternum I (1a) 22 (22–24), 9 (9–10) apart, proximal setae on coxisternum II (2a) 55 (55–60), 26 (26–28) apart. Prosternal apodeme 7 (7–8). Legs with usual series of setae. Leg I 42 (40–42), femur 10 (9–10), basiventral femoral seta (bv) 10 (9–10); genu 6 (5–6), antaxial genual seta (l ʺ) 30 (28–30); tibia 9 (8–9), paraxial tibial seta (l ʹ) 7 (6–7), located 1/2 from dorsal base; tarsus 7 (6–7); seta ft ʹ 18 (18–20), seta ft ʺ 19 (19– 20), paraxial unguinal tarsal seta (u ʹ) 6 (5–6); tarsal empodium 10 (8–10), simple, 6-rayed, tarsal solenidion rod-like. Leg II 39 (37–39), femur 10 (9–10), basiventral femoral seta (bv) 12 (11–12); genu 6 (5–6), antaxial genual seta (l ʺ) 8 (7–8); tibia 6 (5–6); tarsus 7 (6–7); seta ft ʹ 7 (6–7), seta ft ʺ 20 (20–22), paraxial unguinal tarsal seta (u ʹ) 6 (5–6); tarsal empodium 10 (8–10), simple, 6-rayed, tarsal solenidion rod-like. Opisthosoma: opisthosoma dorsally with 56 (56–62) annuli, smooth, with a slight broad dorsal furrow; ventrally with 69 (61–69) annuli, with round microtubercles, but coxigenital annuli are smooth. Setae c2 40 (38–40) on ventral annulus 10 (8–10); setae d 70 (60–75) on ventral annulus 24 (22–24), 24 (22–25) apart; setae e 40 (35–42) on ventral annulus 43 (38–43), 10 (9–10) apart; setae f 30 (28–31) on 5th ventral annulus from rear, 14 (13–14) apart. Setae h1 4 (3–4), setae h2 65 (60–65). Female genitalia coverflap 10 (9–10), 21 (20–21) wide, with 12 (10–12) longitudinal ridges, setae 3a 35 (30–35), 14 (14–15) apart.

MALE: (n = 10) Body fusiform, 170 (160–175), 50 (48–52) wide; light yellow. Gnathosoma 22 (20–22), projecting obliquely down, pedipalp coxal seta (ep) 3 (3–4), dorsal pedipalp genual seta (d) 8 (7–8), cheliceral stylets 20 (18–20). Prodorsal shield 42 (40–42), 49 (45–49) wide; prodorsal shield with lobe rounded, prodorsal shield designs are similar to females. Scapular tubercles ahead of shield rear margin, 18 (16–18) apart, scapular setae (sc) 6 (5–6) projecting centrad. Coxal plates with short lines; anterolateral setae on coxisternum I (1b) 7 (7–8), 10 (10–11) apart, proximal setae on coxisternum I (1a) 15 (12–15), 7 (6–7) apart, proximal setae on coxisternum II (2a) 45 (40–45), 22 (20–22) apart. Prosternal apodeme 7 (6–7). Legs with usual series of setae. Leg I 38 (36–38), femur 10 (9–10), basiventral femoral seta (bv) 8 (7–8); genu 5 (4–5), antaxial genual seta (l ʺ) 24 (20–24); tibia 7 (6–7), paraxial tibial seta (l ʹ) 5 (4–5), located 1/2 from dorsal base; tarsus 6 (5–6); seta ft ʹ 19 (19–21), seta ft ʺ 20 (20–22), paraxial unguinal tarsal seta (u ʹ) 5 (4–5); tarsal empodium 9 (8–9), simple, 6-rayed, tarsal solenidion rod-like. Leg II 37 (35–37), femur 10 (9–10), basiventral femoral seta (bv) 10 (10–11); genu 5 (4–5), antaxial genual seta (l ʺ) 7 (6–7); tibia 6 (5–6); tarsus 6 (5–6); seta ft ʹ 6 (6–7), seta ft ʺ 20 (20–21), paraxial unguinal tarsal seta (u ʹ) 5 (4–5); tarsal empodium 9 (8–9), simple, 6-rayed, tarsal solenidion rod-like. Opisthosoma: opisthosoma dorsally with 70 (70–75) annuli, smooth, with a broad furrow; ventrally with 69 (69–75) annuli, with round microtubercles, but coxigenital annuli are smooth. Setae c2 25 (22–25) on ventral annulus 9 (9–12); setae d 40 (38–42) on ventral annulus 26 (23–26), 25 (23–25) apart; setae e 25 (24–25) on ventral annulus 41 (39–45), 12 (11–12) apart; setae f 25 (21– 25) on 5th ventral annulus from rear, 18 (17–19) apart. Setae h1 3 (2–3), setae h2 45 (40–45). External male genitalia 17 (16–18) wide, setae 3a 25 (20–26), 15 (13–15) apart.

Type material. Holotype, female (slide marked NJAUAcariEri973/974 holotype), from Smilax sp. ( Liliaceae ), Pai Town, Nyingchi Prefecture, Tibet Autonomous Region, P. R. China (29°35΄10ʺN, 94°55΄44ʺE; H: 3173m), 18 August, 2007, coll. Zi-Wei Song, Xiao-Feng Xue & Zhen Wang. Paratypes, 18 females and 10 males (slides marked NJAUAcariEri973/974) with the same data as holotype.

Relation to host. Vagrant on leaf undersurface. No damage to the host was observed.

Etymology. The specific designation is smilanus from the host genus name “ Smilax ”.

Differential diagnosis. This species is similar to P. kuangii Amrine & Stasny, 1994 ( Kuang & Zhuo, 1989) , but can be distinguished by the shield design with incomplete median line only present on 1/3 of shield and subparallel with admedian lines; admedian and submedian line separated (shield design with median line connected with submedian lines by two transverse lines at the end of median line; admedian and submedian lines connected by two transverse lines in P. kuangii ); lateral aspect of prodorsal shield smooth (short lines on lateral sides of shield in P. kuangii ).

Figures

FIGURE 13. Phyllocoptruta smilanus sp. nov. D, dorsal view of female; CG, coxae and external genitalia of female; CGM, coxae and external genitalia of male.

FIGURE 14. Phyllocoptruta smilanus sp. nov. L, lateral view of female; L 1, leg I; L 2, leg II; em, empodium; LO, enlarged lateral view of opisthosoma.