Calepitrimerus cotoneaster, 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 : 13-14

Calepitrimerus cotoneaster sp. nov.

( Figs 9 & 10 )

Description. FEMALE: (n = 10) Body fusiform, 178 (178–193), 68 (60–68) wide, 63 (60–63) thick; light yellow. Gnathosoma 20 (19–20), projecting obliquely down, pedipalp coxal seta (ep) 3 (2–3), dorsal pedipalp genual seta (d) 5 (3–5), cheliceral stylets 16 (16–17). Prodorsal shield 45 (44–46), 53 (50–55) wide, with broad lobe; shield design with incomplete admedian lines connected at posterior of shield, median line absent; short lines and granules on the shield between admedian lines, granules on lateral sides of shield. Scapular tubercles ahead of shield rear margin, 20 (19–21) apart, scapular setae (sc) 10 (9–11) projecting centrad. Coxal plates with short lines; anterolateral setae on coxisternum I (1b) 10 (7–10), 10 (10–11) apart, proximal setae on coxisternum I (1a) 20 (15–20), 8 (7–8) apart, proximal setae on coxisternum II (2a) 32 (30–32), 23 (22–23) apart. Prosternal apodeme absent. Legs with usual series of setae. Leg I 40 (37–40), femur 10 (9–10), basiventral femoral seta (bv) 10 (8–10); genu 5 (5–6), antaxial genual seta (l ʺ) 22 (20–22); tibia 8 (7–8), paraxial tibial seta (l ʹ) 5 (4–5), located 1/2 from dorsal base; tarsus 7 (6–7); seta ft ʹ 15 (14–16), seta ft ʺ 16 (15– 17), paraxial unguinal tarsal seta (u ʹ) 5 (4–5); tarsal empodium 6 (5–6), simple, 6-rayed, tarsal solenidion knobbed. Leg II 37 (35–37), femur 10 (9–10), basiventral femoral seta (bv) 15 (15–17); genu 5 (4–5), antaxial genual seta (l ʺ) 7 (6–7); tibia 5 (4–5); tarsus 7 (6–7); seta ft ʹ 6 (5–6), seta ft ʺ 15 (15–16), paraxial unguinal tarsal seta (u ʹ) 5 (4–5); tarsal empodium 6 (5–6), simple, 6-rayed, tarsal solenidion knobbed. Opisthosoma: opisthosoma dorsally with 80 (80–85) annuli, with three longitudinal ridges, middorsal ridge with round microtubercles and ending in a broad furrow, ventrally with 74 (74–79) annuli, with round microtubercles. Setae c2 15 (15–17) on ventral annulus 8 (8–10); setae d 45 (45–50) on ventral annulus 23 (23–27), 26 (26– 28) apart; setae e 13 (13–14) on ventral annulus 45 (45–47), 12 (12–13) apart; setae f 45 (45–47) on 7th ventral annulus from rear, 19 (19–20) apart. Setae h1 3 (2–3), setae h2 60 (58–64). Female genitalia coverflap 9 (8– 9), 20 (17–20) wide, with 8 longitudinal ridges, setae 3a 23 (23–25), 14 (14–15) apart.

MALE: Unknown.

Type material. Holotype, female (slide marked NJAUAcariEri969 holotype), from Cotoneaster buxifolius Lindl. (Rosaceae) , 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, 9 females (slides marked NJAUAcariEri969) 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 cotoneaster from the host genus name “ Cotoneaster ”.

Differential diagnosis. This species is similar to C. baileyi Keifer, 1938 , but can be distinguished by the prodorsal shield design with short lines and granules between admedian lines, granules on lateral of the shield (shield design very obscure, surface slightly granular in C. baileyi ); coxal plates with short lines (coxal plates smooth in C. baileyi ); empodium 6-rayed (empodium 4-rayed in C. baileyi ).

Figures

FIGURE 9. Calepitrimerus cotoneaster sp. nov. D, dorsal view of female; CG, coxae and external genitalia of female; L 1, leg I; L 2, leg II.

FIGURE 10. Calepitrimerus cotoneaster sp. nov. L, lateral view of female; em, empodium; LO, enlarged lateral view of opisthosoma.