Eriophyoid mite fauna (Acari: Eriophyoidea) of Gansu Province, northwestern China with descriptions of twelve new species Author Song, Zi-Wei Author Xue, Xiao-Feng Author Hong, Xiao-Yue text Zootaxa 2008 1756 1 48 journal article 10.5281/zenodo.181815 558e2615-9b6e-4ed1-a6f2-4463244ae002 1175-5326 181815 Phyllocoptruta spiraeanis sp. nov. ( Fig. 9 ) Description. FEMALE: (n = 10) Body fusiform, 207 (195–210), 67 (63–67) wide, 70 (68–72) thick; light yellow. Gnathosoma 28 (25–30), projecting obliquely down, pedipalp coxal setae ( ep ) 3 (3–4), dorsal pedipalp genual setae ( d ) 9 (9–10), chelicerae 23 (23–25). Prodorsal shield 43 (42–43), 56 (54–56) wide; with broad and round frontal lobe; prodorsal shield design with complete admedian lines and incomplete submedian lines, admedian lines subparallel and connect at rear; submedian lines sinuous. Scapular tubercles ahead of rear margin, 20 (20–21) apart, scapular setae ( sc ) 15 (14–15) projecting centrad. Coxal area with short and thick lines; anterolateral setae on coxisternum I ( 1b ) 10 (10–12), proximal setae on coxisternum I ( 1a ) 28 (25– 28), proximal setae on coxisternum II ( 2a ) 35 (33–40). Prosternal apodeme present. Legs: Leg I 42 (41–42), femur 10 (10–11), basiventral femoral seta ( bv ) 12 (11–12); genu 6 (5–6), antaxial genual seta ( l'' ) 35 (30–36); tibia 10 (10–11), paraxial tibial seta ( l' ) 8 (7–8), seta located 1/2 from dorsal base; tarsus 8 (7–8), tarsal seta ( u' ) 5 (4–5), tarsal empodium simple, 9-rayed, tarsal solenidion tapered. Leg II 38 (38–39), femur 10 (9–10), basiventral femoral seta ( bv ) 13 (12–14); genu 5 (4–5), antaxial genual seta ( l'' ) 11 (9–12); tibia 8 (7–8); tarsus 7 (6–7), tarsal seta ( u' ) 5 (4–5), tarsal empodium simple, 9-rayed, tarsal solenidion tapered. Opisthosoma : dorsal opisthosoma with 49 (49–50) annuli, with microtubercles on rear annular margins; with a broad dorsal furrow; ventrally with 57 (54–61) annuli, with elliptical microtubercles. Setae c2 28 (25–30) on ventral annulus 10 (7–11); setae d 50 (45–60) on ventral annulus 21 (19–22); setae e 32 (30–33) on ventral annulus 36 (34–36); setae f 30 (30–32) on 6th ventral annulus from rear. Setae h1 6 (5–6). Female genitalia 12 (11–13), 22 (22–23) wide, coverflap with 8–10 longitudinal ridges, proximal setae on coxisternum III ( 3a ) 25 (25–30). MALE: (n = 9) Body fusiform, 180 (170–190), 65 (60–65) wide, 63 (63–65) thick; light yellow. Gnathosoma 23 (22–26), projecting obliquely down, pedipalp coxal setae ( ep ) 4 (3–4), dorsal pedipalp genual setae ( d ) 10 (8–11), chelicerae 20 (19–22). Prodorsal shield 38 (36–38), 49 (47–49) wide; with broad frontal lobe. Scapular tubercles ahead of rear margin, 17 (17–19) apart, scapular setae ( sc ) 13 (13–14) projecting centrad. Coxal area with short lines; anterolateral setae on coxisternum I ( 1b ) 12 (11–12), proximal setae on coxisternum I ( 1a ) 30 (27–30), proximal setae on coxisternum II ( 2a ) 33 (32–35). Prosternal apodeme present. Legs: Leg I 40 (38–40), femur 10 (9–10), basiventral femoral seta ( bv ) 10 (10–11); genu 5 (5–6), antaxial genual seta ( l'' ) 30 (30–32); tibia 9 (9–10), paraxial tibial seta ( l' ) 9 (7–9), seta located 1/2 from dorsal base; tarsus 8 (7–8), tarsal seta ( u' ) 4 (4–5), tarsal empodium simple, 9-rayed, tarsal solenidion tapered. Leg II 36 (35–37), femur 9 (9–10), basiventral femoral seta ( bv ) 15 (13–15); genu 5 (4–5), antaxial genual seta ( l'' ) 10 (9–10); tibia 7 (7–8); tarsus 6 (6–7), tarsal seta ( u' ) 4 (4–5), tarsal empodium simple, 9-rayed, tarsal solenidion tapered. Opisthosoma : dorsal opisthosoma with 42 (40–42) annuli, with microtubercles on rear annular margins; with a broad dorsal furrow; ventrally with 53 (50–54) annuli, with elliptical microtubercles. Setae c2 30 (27–30) on ventral annulus 7 (7–8); setae d 50 (48–53) on ventral annulus 19 (18–19); setae e 30 (30–32) on ventral annulus 33 (33–35); setae f 30 (30–31) on 6th ventral annulus from rear. Setae h1 6 (6–7). Male genitalia 3 (3–4), 21 (20–22) wide, proximal setae on coxisternum III ( 3a ) 23 (20–25). Types . Holotype , female, from Spiraea blumei G. Don (Rosaceae) , Guan’e Gou, Dangchang County, Gansu Province, China , 33°57'39N, 104°19'45E, September 12, 2005 , collected by Zi-Wei Song and Xiao- Feng Xue. Paratypes , 9 females and 9 males , with the same data as holotype . Relation to host. Mites are vagrant on the undersurface of leaves, causing no apparent damage. Etymology. The specific designation spiraeanis is from the generic name of the host plant, Spiraea . Remarks. This species is similar to Phyllocoptruta dimidius Huang & Wang, 2004 , but can be differentiated by coxal area with short lines (coxal area I with granules, coxal area II smooth in P . dimidius ), dorsal annuli with microtubercles entirely (dorsal annuli with microtubercles on lateral ridges in P . dimidius ), empodium 9-rayed, tarsal solenidion tapered (empodium 6-rayed, tarsal solenidion knobbed in P . dimidius ).