Rhyncaphytoptus yilisis
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Ordo: Prostigmata
Familia: Diptilomiopidae
Genus: Rhyncaphytoptus
Name
Rhyncaphytoptus yilisis Song, Zi-Wei, 2007 – Wikispecies link – Pensoft Profile
- Rhyncaphytoptus yilisis Song, Zi-Wei, 2007, Zootaxa 1520: 65-67.
Description
Description. Female: (n = 10) Body fusiform, 317 (309–330), 88 (88–92) wide, 80 (80–84) thick; light yellow. Gnathosoma 70 (70–73), projecting downwards, pedipalp coxal setae (ep) 4 (4–5), dorsal pedipalp genual setae (d) 12 (10–13). Chelicerae 68 (68–70), oral stylets 70 (70–73). Prodorsal shield44 (43–44), 75 (74– 76) wide; with wide and broad frontal lobe; prodorsal shield design of incomplete median, submedian and complete admedian lines; admedian lines sinuous at 1 / 2 anterior and ending with a semicircle line. Scapular tubercles on rear margin, 42 (38–42) apart, scapular setae (sc) 27 (25–28) projecting forward. Coxal area smooth; anterolateral setae on coxisternum I (1 b) 10 (10–13), proximal setae on coxisternum I (1 a) 22 (20– 30), proximal setae on coxisternum II (2 a) 55 (50–60). Prosternal apodeme present. Legs I68 (66–68), femur 15 (14–15), basiventral femoral setae (bv) 23 (23–25); genu 8 (7–8), antaxial genual setae (l’’) 36 (36–40); tibia 15 (14–15), paraxial tibial setae (l’) 14 (14–15), setae located 1 / 3 from dorsal base; tarsus 11 (10–11), tarsal setae (u’) 5 (4–5), tarsal empodium simple, 6 -rayed, tarsal solenidion knobbed. Legs II66 (64–66), femur 13 (12–13), basiventral femoral setae (bv) 21 (21–23); genu 7 (7–8), antaxial genual setae (l’’) 15 (15– 17); tibia 13 (11–13); tarsus 11 (10–11), tarsal setae (u’) 5 (4–5), tarsal empodium simple, 6 -rayed, tarsal solenidion knobbed. Opisthosoma: dorsal opisthosoma with 26 (26–28) annuli, with central fissures and last seven annuli with triangular microtubercles ahead of annular margins; ventrally with 97 (90–98) annuli, with triangular microtubercles. Setae c 2 20 (18–20) on ventral annulus 21 (18–22); setae d45 (45–60) on ventral annulus 46 (40–47); setae e18 (17–20) on ventral annulus 65 (57–68); setae f32 (32–50) on 6 th ventral annulus from rear. Setae h 1 6 (5–6). Female genitalia23 (23–28), 42 (40–42) wide, coverflap without longitudinal ridges, but with granules at base, proximal setae on coxisternum III (3 a) 18 (18–20). MALE: (n = 2) Body fusiform, 280–290, 76 – 80 wide, light yellow. Gnathosoma 65–70, projecting downwards, pedipalp coxal setae (ep) 3–4, dorsal pedipalp genual setae (d) 10–12. Chelicerae 60–64, oral stylets 65–70. Prodorsal shield40–42, 63 – 65 wide; with wide and broad frontal lobe. Scapular tubercles on rear margin, 35–37 apart, scapular setae (sc) 25–28 projecting forward. Coxal area smooth; anterolateral setae on coxisternum I (1 b) 10–15, proximal setae on coxisternum I (1 a) 20–28, proximal setae on coxisternum II (2 a) 50–57. Prosternal apodeme present. Legs I63–65, femur 13–15, basiventral femoral setae (bv) 20–23; genu 6–7, antaxial genual setae (l’’) 35–38; tibia 13–14, paraxial tibial setae (l’) 14–15, setae located 1 / 3 from dorsal base; tarsus 10–11, tarsal setae (u’) 4–5, tarsal empodium simple, 6 -rayed, tarsal solenidion knobbed. Legs II60 –63, femur 10–12, basiventral femoral setae (bv) 20–22; genu 5–6, antaxial genual setae (l’’) 15–16; tibia 11–12; tarsus 10–11, tarsal setae (u’) 4–5, tarsal empodium simple, 6 -rayed, tarsal solenidion knobbed. Opisthosoma: dorsal opisthosoma with 23–25 annuli, with triangular microtubercles ahead of annular margins, ventrally with 88–90 annuli, with triangular microtubercles. Setae c 2 18–20 on ventral annulus 16–18; setae d40–50 on ventral annulus 40–45; setae e15–18 on ventral annulus 58–61; setae f30–40 on 6 th ventral annulus from rear. Setae h 1 5–6. Male genitalia3–4, 29 – 30 wide, proximal setae on coxisternum III (3 a) 20– 22.
Types. Holotype, female, China: Xinjiang Uygur Autonomous Region, Yili Kazak Autonomous State, 43.55°N, 81.20°E. August 2, 2006, from Betula platyphylla Suk. (Betulaceae), coll. Zi-Wei Song and Xiao- Feng Xue. Paratype, 9 females and 2 males, with the same data as holotype. Relation to host. Vagrant on leaf undersurface, causing no apparent damage.
Etymology
Etymology. The specific designation yilisis is from the locality where the host plant and the new species were collected.
Discussion
Remarks. This species is similar to Rhyncaphytoptus ulmi Xin & Dong, 1981, but can be differentiated by the following: dorsal annuli with fissures and last seven annuli with triangular microtubercles ahead of annular margins (dorsal annuli with spiny microtubercles ahead of annular margins in R. ulmi), female genital coverflap with granules at base (female genital coverflap smooth in R. ulmi), empodium 6 -rayed (empodium 5 -rayed in R. ulmi).
Taxon Treatment
- Song, Zi-Wei; Xue, Xiao-Feng; Hong, Xiao-Yue; 2007: Four new species and a new name in the genus Rhyncaphytoptus Keifer (Acari: Eriophyoidea: Diptilomiopidae) from China, Zootaxa 1520: 65-67. doi
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