Rhyncaphytoptus longyuwanis, Song, Zi-Wei, Xue, Xiao-Feng & Hong, Xiao-Yue, 2007

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, pp. 57-68 : 59-61

Rhyncaphytoptus longyuwanis sp. nov.

( Fig. 1 )

Description. FEMALE: (n = 9) Body fusiform, 278 (269–283), 73 (68–75) wide, 63 (61–66) thick; light yellow. Gnathosoma 51 (50–53), projecting downwards, pedipalp coxal setae (ep) 2 (2–3), dorsal pedipalp genual setae (d) 11 (10–12). Chelicerae 48 (48–50), oral stylets 51 (50–53). Prodorsal shield 22 (21–22), 45 (42– 46) wide; without frontal lobe; prodorsal shield design with complete median, admedian and incomplete submedian lines, median line connected at 1/2 anterior with admedian and submedian lines by a transverse line forming a cell-like pattern at anterior margin of prodorsal shield. Scapular tubercles on rear margin, 21 (21– 22) apart, scapular setae (sc) 23 (21–24) projecting forward. Coxal area with short lines; anterolateral setae on coxisternum I (1b) 15 (15–16), proximal setae on coxisternum I (1a) 28 (26–31), proximal setae on coxisternum II (2a) 55 (54–57). Prosternal apodeme present. Legs I 42 (40–44), femur 15 (14–15), basiventral femoral setae (bv) 12 (12–13); genu 5 (5–6), antaxial genual setae (l'') 27 (27–28); tibia 8 (8–9), paraxial tibial setae (l') 10 (9–10), setae located 1/2 from dorsal base; tarsus 10 (9–10), tarsal setae (u') 4 (4–5), tarsal empodium simple, 6–rayed, tarsal solenidion knobbed. Legs II 36 (34–38), femur 11 (11–12), basiventral femoral setae (bv) 12 (11–12); genu 5 (4–5), antaxial genual setae (l'') 12 (11–12); tibia 6 (5–6); tarsus 10 (9–10), tarsal setae (u') 4 (4–5), tarsal empodium simple, 6-rayed, tarsal solenidion knobbed. Opisthosoma: dorsal opisthosoma with 63 (59–66) annuli, with round microtubercles, ventrally with 91 (89–94) annuli, with round microtubercles. Setae c2 13 (13–14) on ventral annulus 15 (15–16); setae d 50 (45–53) on ventral annulus 32 (32–33); setae e 48 (45–50) on ventral annulus 53 (52–54); setae f 30 (30–31) on 9th ventral annulus from rear. Setae h1 absent. Female genitalia 20 (20–21), 27 (26–27) wide, coverflap smooth, proximal setae on coxisternum III (3a) 13 (11–15).

MALE: (n = 1) Body fusiform, 252, 83 wide, light yellow. Gnathosoma 50, projecting downwards, pedipalp coxal setae (ep) 2, dorsal pedipalp genual setae (d) 10. Chelicerae 47, oral stylets 50. Prodorsal shield 20, 50 wide; without frontal lobe. Scapular tubercles on rear margin, 23 apart, scapular setae (sc) 20 projecting forward. Coxal area with short lines; anterolateral setae on coxisternum I (1b) 10, proximal setae on coxisternum I (1a) 25, proximal setae on coxisternum II (2a) 50. Prosternal apodeme present. Legs I 40, femur 13, basiventral femoral setae (bv) 10; genu 5, antaxial genual setae (l'') 25; tibia 7, paraxial tibial setae (l') 10, setae located 1/2 from dorsal base; tarsus 8, tarsal setae (u') 4, tarsal empodium simple, 6-rayed, tarsal solenidion knobbed. Legs II 35, femur 10, basiventral femoral setae (bv) 11; genu 4, antaxial genual setae (l'') 11; tibia 6; tarsus 8, tarsal setae (u') 4, tarsal empodium simple, 6-rayed, tarsal solenidion knobbed. Opisthosoma: dorsal opisthosoma with 55 annuli, with round microtubercles, ventrally with 80 annuli, with round microtubercles. Setae c2 10 on ventral annulus 12; setae d 40 on ventral annulus 27; setae e 40 on ventral annulus 48; setae f 30 on 9th ventral annulus from rear. Setae h1 absent. Male genitalia 5, 22 wide, proximal setae on coxisternum III (3a) 9.

Types. Holotype, female, China: Henan Province, Luanchuan County, Longyuwan, 33°42'53N, 111°45’62E. July 21, 2004, from Toxicodendron sp. ( Anacardiaceae ), Coll. Xiao-Feng Xue. Paratypes, 8 females and 1 male, with the same data as holotype.

Relation to host. Vagrant on leaf undersurface, causing no apparent damage.

Etymology. The specific designation longyuwanis is from the locality where the host plant and the new species were collected, Longyuwan.

Remarks. This species is similar to Rhyncaphytoptus papyriferae Xue & Hong, 2005 , but can be differentiated by the following: prodorsal shield design with median line connected with admedian lines by a transverse line at 1/2 anterior (median line not connected with admedian lines in R. papyriferae ), coxal area with short lines (coxal area with granules in R. papyriferae ), tarsal solenidion knobbed (tarsal solenidion tapered in R. papyriferae ).

Figures

FIGURE 1. Rhyncaphytoptus longyuwanis sp. nov. A, dorsal view of female; B, coxae and female genitalia; C, legs I and II; D, lateral aspect of female; E, tarsal empodium; F, male genitalia.