Epitrimerus vescae, Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2007

Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2007, Seven new species of the genus Epitrimerus Nalepa (Acari: Eriophyidae: Phyllocoptinae) from China, Zootaxa 1406, pp. 1-15 : 4-6

Epitrimerus vescae sp. nov.

( Fig. 2 )

Description. FEMALE: (n = 4) Body fusiform, 213 (207–216) long, 63 (61–65) wide, 55 (53–56) thick; light yellow. Gnathosoma 17 (15–18), projecting obliquely down, pedipalp coxal setae (ep) 2 (2–3), dorsal pedipalp genual setae (d) 6 (5–6), chelicerae 15 (15–16), oral stylets 11 (10–11). Prodorsal shield 50 (50–51), 57 (55– 60) wide; sub quadrangular; frontal lobe present; admedian lines present and connected at base, submedian lines complete, with granules on admedian and submedian lines. Dorsal tubercles ahead of rear margin, 17 (17–18) apart, scapular setae (sc) 6 (6–7) projecting centrad. Coxal area with short lines; anterolateral setae on coxisternum І (1b) 7 (7–8), proximal setae on coxisternum І (1a) 20 (15–21), proximal setae on coxisternum І (2a) 45 (43–48). Prosternal apodeme present. Legs with usual series of setae. Legs І 29 (27–31), femur 9 (8–9), basiventral femoral setae (bv) 10 (8–10); genu 5 (5–6), antaxial genual setae (l'') 27 (22–28); tibia 7 (6–7), paraxial tibial setae (l') 5 (5–6), setae located 1/3 from dorsal base; tarsus 6 (5–6); tarsal empodium simple, 5-rayed, tarsal solenidion knobbed. Legs І 26 (24–28), femur 8 (7–8), basiventral femoral setae (bv) 10 (10–11); genu 4 (4–5), antaxial genual setae (l'') 8 (7–10); tibia 6 (5–6); tarsus 6 (5–6); tarsal empodium simple, 5-rayed, tarsal solenidion knobbed. Opisthosoma: dorsal opisthosoma with 45 (44–48) annuli, with round microtubercles on the ridges, ventrally with 67 (65–72) microtuberculate annuli. Setae c2 22 (21– 23) on ventral annulus 12 (12–13); setae d 51 (48–52) on ventral annulus 26 (24–27); setae e 18 (18–19) on ventral annulus 44 (42–45), setae f 22 (22–23) on 6th ventral annulus from rear. Setae h1 4 (3–4). Female genitalia 12 (12–13) long, 21 (20–21) wide, coverflap with 10 longitudinal ridges and 3 transverse lines at base, proximal setae on coxisternum ІІ (3a) 21 (21–22).

MALE: (n = 2) Body fusiform, 135–148 long, 46–50 wide; light yellow. Gnathosoma 14–15, projecting obliquely down, pedipalp coxal setae (ep) 2–3, dorsal pedipalp genual setae (d) 5–6, chelicerae 11–12, oral stylets 9–10. Prodorsal shield 41–42, 48–50 wide; sub quadrangular; frontal lobe present. Dorsal tubercles ahead of rear margin, 17–18 apart, scapular setae (sc) 5–6 projecting centrad. Coxal area with short lines; anterolateral setae on coxisternum І (1b) 7–8, proximal setae on coxisternum І (1a) 12–15, proximal setae on coxisternum І (2a) 18–21. Prosternal apodeme present. Legs with usual series of setae. Legs І 26–27, femur 8–9, basiventral femoral setae (bv) 8–9; genu 4–5, antaxial genual setae (l'') 20–22; tibia 5–6, paraxial tibial setae (l') 3–4, setae located 1/3 from dorsal base; tarsus 4–5; tarsal empodium simple, 5-rayed, tarsal solenidion knobbed. Legs І 22–23, femur 6–7, basiventral femoral setae (bv) 7–9; genu 3–4, antaxial genual setae (l'') 6–8; tibia 3–4; tarsus 4; tarsal empodium simple, 5-rayed, tarsal solenidion knobbed. Opisthosoma: dorsal opisthosoma with 38–42 annuli, with round microtubercles on the ridges, ventrally with 57–58 microtuberculate annuli. Setae c 2 11–15 on ventral annulus 11; setae d 30–33 on ventral annulus 21–22; setae e 13–15 on ventral annulus 44 34–35, setae f 20–21 on 5th ventral annulus from rear. Setae h1 2–3. Male genitalia 5– 6 long, 15–16 wide, proximal setae on coxisternum III (3a) 12–18.

Types. Holotype, female, China: Henan Province, Luanchuan County, Longyuwan, 33°42.53’N, 111°45.62’E. July 19, 2004, from Fragaria vesca L. ( Rosaceae ), coll. Xue, Xiao-Feng. Paratypes, 3 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. The specific designation vescae is from the specific epithet of type host plant, vesca .

Remarks. This species is similar to Epitrimerus sabinae Xue & Hong, 2005 , but can be differentiated by the presence of submedian lines (submedian lines absent in E. sabinae ), coxal area with short lines (coxal area with granules in E. sabinae ), female genital coverflap with 10 ridges (female genital coverflap with 14 to 18 ridges in E. sabinae ).

Figures

FIGURE 2. Epitrimerus vescae 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.