Tegolophus picrasmae, Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2007

Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2007, Five new species of the genus Tegolophus Keifer (Acari: Eriophyidae: Phyllocoptinae: Anthocoptini) from China, Zootaxa 1525, pp. 19-30 : 23-26

Tegolophus picrasmae sp. nov.

( Fig. 3 )

Description. FEMALE: (n = 8) Body fusiform, 209 (189–218) long, 65 (63–68) wide, 65 (64–66) thick; light yellow. Gnathosoma 22 (20–23), projecting obliquely down, pedipalp coxal setae (ep) 2 (2–3), dorsal pedipalp genual setae (d) 6 (5–6), chelicerae 21 (21–22), oral stylets 20 (20–21). Prodorsal shield 45 (45–46), 59 (58–60) wide; subtriangular; frontal lobe acuminate; median line present 1/3 at base and connected with admedian lines at basal 1/3, admedian and submedian lines connected forming two large cells. Dorsal tubercles on rear margin, 34 (32–35) apart, scapular setae (sc) 7 (6–8) projecting posteriorly. Coxal area with short lines; anterolateral setae on coxisternum І (1b) 8 (7–8), proximal setae on coxisternum І (1a) 19 (18–20), proximal setae on coxisternum І (2a) 25 (23–27). Prosternal apodeme present. Legs with usual series of setae. Legs І 30 (28–32), femur 9 (9–10), basiventral femoral setae (bv) 7 (7–8); genu 5 (5–6), antaxial genual setae (l'') 20 (20–22); tibia 7 (7–8), paraxial tibial setae (l') 5 (5–6), setae located 1/3 from dorsal base; tarsus 5 (5–6); tarsal empodium simple, 4-rayed, tarsal solenidion knobbed. Legs І 27 (25–29), femur 8 (7–8), basiventral femoral setae (bv) 8 (7–8); genu 4 (4–5), antaxial genual setae (l'') 6 (6–7); tibia 6 (5–6); tarsus 5 (5–6); tarsal empodium simple, 4-rayed, tarsal solenidion knobbed. Opisthosoma: dorsal opisthosoma with 31 (28–32) annuli, with filament microtubercles on ridges, ventrally with 70 (69–72) annuli, with round microtubercles. Setae c2 15 (15–16) on ventral annulus 13 (13–14); setae d 55 (52–58) on ventral annulus 27 (25–28); setae e 14 (13–16) on ventral annulus 47 (45–49), setae f 21 (20–21) on 6th ventral annulus from rear. Setae h1 3 (3–4). Female genitalia 14 (12–15) long, 20 (20–21) wide, coverflap with 10 longitudinal ridges and 2 transverse lines at base, proximal setae on coxisternum ІІІ (3a) 15 (15–16).

MALE: (n = 7) Body fusiform, 152 (145–179) long, 53 (51–55) wide, 53 (51–54) thick, light yellow. Gnathosoma 19 (19–20), projecting obliquely down, pedipalp coxal setae (ep) 2 (2–3), dorsal pedipalp genual setae (d) 6 (5–6), chelicerae 17 (17–19), oral stylets 17 (17–18). Prodorsal shield 37 (35–38), 55 (53–57) wide; subtriangular. Dorsal tubercles on rear margin, 27 (27–28) apart, scapular setae (sc) 5 (5–6) projecting posteriorly. Coxal area with short lines; anterolateral setae on coxisternum І (1b) 5 (5–6), proximal setae on coxisternum І (1a) 15 (14–17), proximal setae on coxisternum І (2a) 32 (30–35). Prosternal apodeme present. Legs with usual series of setae. Legs І 28 (27–30), femur 8 (8–9), basiventral femoral setae (bv) 9 (9– 10); genu 5 (4–5), antaxial genual setae (l'') 18 (17–19); tibia 7 (6–7), paraxial tibial setae (l') 5 (4–5), setae located 1/3 from dorsal base; tarsus 5 (4–5); tarsal empodium simple, 4-rayed, tarsal solenidion knobbed. Legs І 24 (23–25), femur 7 (7–8), basiventral femoral setae (bv) 8 (7–8); genu 4 (3–4), antaxial genual setae (l'') 5 (5–6); tibia 5 (5–6); tarsus 4 (4–5); tarsal empodium simple, 4-rayed, tarsal solenidion knobbed. Opisthosoma: dorsal opisthosoma with 25 (24–28) annuli, with filament microtubercles on ridges, ventrally with 65 (62–66) annuli, with round microtubercles. Setae c2 15 (15–16) on ventral annulus 10 (10–12); setae d 35 (33–38) on ventral annulus 25 (25–26); setae e 12 (12–13) on ventral annulus 43 (43–44), setae f 17 (15– 18) on 6th ventral annulus from rear. Setae h1 3 (3–4). Male genitalia 5 (5–6) long, 20 (20–21) wide, proximal setae on coxisternum ІІІ (3a) 15 (15–16).

Types. Holotype, female, China: Shaanxi Province, Xi’an City, Cuihua Mountain, 34°98’N, 109°00’E. August 15, 2005, from Picrasma quassioides (D. Don) Benn. (Simarubaceae) , coll. Xue, Xiao-Feng and Song, Zi-Wei. Paratypes, 7 females and 7 males, with the same data as holotype.

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

Etymology. The specific designation picrasmae is from the generic name of the host plant, Picrasma .

Remarks. This species is similar to Tegolophus paliurus Kuang & Lin, 2001 , but can be differentiated by dorsal annuli with microtubercles (dorsal annuli smooth in T. paliurus ), empodium knobbed (empodium unknobbed in T. paliurus ) and different dorsal shield designs.

Figures

FIGURE 3. Tegolophus picrasmae sp. nov. A, dorsal view of female; B, coxae and female genitalia; C, legs І and І; D, lateral microtubercles; E, empodium; F, male genitalia.