Rhinophytoptus roxburghis, Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2006

Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2006, Six new species of Rhyncaphytoptinae from northwestern China (Acari: Eriophyoidea: Diptilomiopidae), Zootaxa 1225, pp. 1-19 : 16-18

Rhinophytoptus roxburghis sp. nov.

( Fig. 7 )

Description

FEMALE (n = 6). Body fusiform, 268 (250–275) long, 67 (65–69) wide, 58 (55–60) thick; light yellow in color. Gnathosoma 49 (45–51), projecting downwards. Prodorsal shield 31 (30–33) long, 50 (48–52) wide; admedian lines present 1/3 at basal and connected anterior, submedian lines present. Dorsal tubercles near rear margin, 25 (25–26) apart, scapular setae (sc) 11 (11–12) projecting posteriorly. Coxal area smooth; anterolateral setae on coxisternum I (1b) 18 (17–20), proximal setae on coxisternum I (1a) 28 (25–31), proximal setae on coxisternum II (2a) 42 (40–45). Sternal line present. Legs with usual series of setae. Leg I 39 (36–41) long, femur 12 (11–13), basiventral femoral setae (bv) 12 (10–13); genu 6 (6–7) long, antaxial genual setae (l’’) 23 (21–25) long; tibia 10 (10–11), paraxial tibial setae (l’) 9 (8–10), setae located at 1/3 from dorsal base; tarsus 8 (7–8) long; tarsal empodium simple, 7­rayed, tarsal solenidion tapered. Leg II 35 (32–36) long, femur 9 (9–10), basiventral femoral setae (bv) 12 (10–14); genu 6 (5–6) long, antaxial genual setae (l’’) 8 (7–10) long; tibia 9 (8–10); tarsus 8 (7–8) long; tarsal empodium simple, 7­rayed, tarsal solenidion tapered. Opisthosoma: dorsal opisthosoma with 30 (28–33) annuli, smooth, ventrally with 30 (28–34) annuli, with two kinds of microtubercles, spiny microtubercles and large, rough microtubercles, semicircular anteriorly. Setae c2 21 (20–23) on ventral annulus 4 (4–5); setae d 52 (45–59) on ventral annulus 15 (15–16); setae e 40 (35–43) on ventral annulus 17 (17–18); setae f 35 (32–40) on 5th ventral annulus from rear. Setae h1 3 (3–4). Female genitalia 13 (12–13) long, 24 (22–25) wide, coverflap smooth, proximal setae on coxisternum III (3a) 21 (18–22) long.

MALE (n = 2). 202 (185–220) long, 46 (44–49) wide, male genitalia 5 (5–6) long, 22 (21–23) wide, proximal setae on coxisternum III (3a) 12 (10–14) long.

Types

Holotype, female, China: Shaanxi Province, Yang County, Changqing, 33°35.23’ N, 107°32.26’E. August 8, 2005, from Rosa roxburghii Tratt. (Rosaceae) , coll. Xue, Xiao­ Feng & Song, Zi­Wei. Paratypes, 5 females and 2 males, with the same data as holotype.

Relation to host

Vagrant on leaf surface. No damage to the host was observed.

Etymology

Derived from the specific epithet of the type host plant, roxburghii .

Remarks

This species is similar to Rhinophytoptus dudichi Farkas, 1963 , on Pruns spinosa L. ( Rosaceae ), but can be differentiated by empodium 7­rayed (4­rayed in R. dudichi ), coxal area smooth (with short lines in R. dudichi ) and scapular setae (sc) projecting posterior (sc projecting forward in R. dudichi ).

Figures

FIGURE 7. Rhinophytoptus roxburghis sp. nov. A, dorsal view of female; B, coxae and female genitalia; C, legs I and II; D, lateral microtubercles; E, empodium; F, male genitalia.