Epitrimerus danzhouicus, Cheng, Li-Sheng, Xue, Xiao-Feng & Hong, Xiao-Yue, 2009

Cheng, Li-Sheng, Xue, Xiao-Feng & Hong, Xiao-Yue, 2009, Eriophyoid mites from Hainan Province, China I: Descriptions of three new species (Acari: Eriophyoidea), Zootaxa 2140, pp. 16-26 : 17-20

Epitrimerus danzhouicus sp. nov.

( Figs 1 & 2 )

Description. FEMALE: (n = 5) Body fusiform, 173 (162–173), 48 (46–48) wide, 38 (36–40) thick; nacarat in color. Gnathosoma 18 (16–18), projecting obliquely down, pedipalp coxal seta (ep) 3 (3–4), dorsal pedipalp genual seta (d) 5 (5–6), cheliceral stylets 12 (12–13). Prodorsal shield 43 (40–43), 40 (36–40) wide; anterior shield lobe broad, with four spines anteriorly; only with admedian lines concaved at center, with many little pits on prodorsal shield. Scapular tubercles ahead of rear shield margin, 14 (14–16) apart, scapular setae (sc) 6 (6–7), projecting posterior. Coxal plates with granules, anterolateral setae on coxisternum І (1b) 6 (6–7), 10 (10–11) apart, proximal setae on coxisternum І (1a) 13 (13–14), 6 (6–7) apart, proximal setae on coxisternum І (2a) 26 (23–26), 19 (19–20) apart. Prosternal apodeme 6 (6–7). Legs with usual series of setae. Leg І 25 (24–27), femur 7 (6–7), basiventral femoral seta (bv) 7 (7–8); genu 3 (3–4), antaxial genual seta (l'') 14 (12–15); tibia 7 (6–7), paraxial tibial seta (l') 5 (4–5), located at 1/3 from proximal tibial margin; tarsus 4 (4–5), seta ft' 16 (15–16), seta ft'' 17 (17–18), seta u' 3 (2–3); tarsal empodium (em) 4 (4–5), simple, 4-rayed, tarsal solenidion (ω) 5 (5–6), knobbed. Leg І 23 (22–25), femur 6 (6–7), basiventral femoral seta (bv) 10 (10–11); genu 3 (3–4), antaxial genual seta (l'') 6 (5–6); tibia 4 (4–5); tarsus 4 (4–5), seta ft' 7 (6–7), seta ft'' 14 (12–14), seta u' 3 (2–3); tarsal empodium (em) 4 (4–5), simple, 4-rayed, tarsal solenidion (ω) 5 (5–6), knobbed. Opisthosoma: opisthosoma dorsally with 29 (28–32) annuli, with three ridges, with filament microtubercles on ridges, ventrally with 60 (58–64) annuli, with elliptical microtubercles. Setae c2 15 (13–15) on ventral annulus 9 (8–9), 38 (36–38) apart; setae d 25 (25–35) on ventral annulus 20 (20–23), 30 (30–31) apart; setae e 8 (7–8) on ventral annulus 34 (34–36), 12 (12–13) apart, setae f 17 (17–21) on 6th ventral annulus from rear, 15 (15–16) apart. Setae h1 2 (2–3), h2 41 (35–41). Female genitalia 12 (11–12), 21 (20–21) wide, coverflap with 16 longitudinal ridges, setae 3a 13 (13–15), 14 (12–14) apart.

MALE: (n = 4) Body fusiform, 115–131, 32–35 wide, 30–31 thick; nacarat in color. Gnathosoma 17–18, projecting obliquely down, pedipalp coxal seta (ep) 2–3, dorsal pedipalp genual seta (d) 4–5, cheliceral stylets 13–14. Prodorsal shield 33–34, 30–32 wide; anterior shield lobe broad, with four spines anteriorly; only with admedian lines concaved at center, with many little pits on prodorsal shield. Scapular tubercles ahead of rear shield margin, 14–15 apart, scapular setae (sc) 5–6, projecting posterior. Coxal plates with granules, anterolateral setae on coxisternum І (1b) 6–7, 9–10 apart, proximal setae on coxisternum І (1a) 13–14, 5–6 apart, proximal setae on coxisternum І (2a) 25–28, 16–17 apart. Prosternal apodeme 6–7. Legs with usual series of setae. Leg І 24–26, femur 5–6, basiventral femoral seta (bv) 6–7; genu 3–4, antaxial genual seta (l'') 13–14; tibia 6–7, paraxial tibial seta (l') 3–4, located at 1/3 from proximal tibial margin; tarsus 4–5, seta ft' 13–14, seta ft'' 14–15, seta u' 2–3; tarsal empodium (em) 4–5, simple, 4-rayed, tarsal solenidion (ω) 5–6, knobbed. Leg І 22–24, femur 6–7, basiventral femoral seta (bv) 7–8; genu 3–4, antaxial genual seta (l'') 5–6; tibia 4–5; tarsus 4–5, seta ft' 4–5, seta ft'' 12–13, seta u' 2–3; tarsal empodium (em) 4–5, simple, 4-rayed, tarsal solenidion (ω) 4–5, knobbed. Opisthosoma: opisthosoma dorsally with 30–31 annuli, with three ridges, with filament microtubercles on ridges, ventrally with 48–50 annuli, with elliptical microtubercles. Setae c 2 14–15 on ventral annulus 8–9, 35–36 apart; setae d 18–20 on ventral annulus 13–14, 25–26 apart; setae e 7–8 on ventral annulus 24–26, 10–11 apart, setae f 19–21 on 6th ventral annulus from rear, 13–14 apart. Setae h1 2–3, h2 32–33. Male genitalia 18–20 wide, setae 3a 7–9, 12–13 apart.

Type material. Holotype, female (slide number Q3, marked Holotype), from Ficus gibbosa Blume (Moraceae) , Liangyuan, Danzhou City, Hainan Province, P.R. China, 19°30’50 N, 109°29’59 E, elevation 120 m, 28 September 2008, coll. Xiao-Feng Xue, Zi-Wei Song and Zhen Wang. Paratypes, 4 females and 4 males (slide number Q3), with the same data as holotype.

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

Etymology. The specific designation danzhouicus is from the name of location, Danzhou, where the type material of the species was collected.

Differential diagnosis. This species is similar to E. parasakthi Mohanasundaram, 1983 (from Ficus sp.), but can be differentiated from the latter by the prodorsal shield with many pits (prodorsal shield without pits in E. parasakthi ), anterior shield lobe with four spines (anterior shield lobe without spines in E. parasakthi ), coxal plates with granules (coxal plates smooth in E. parasakthi ), setae h1 present (setae h1 absent in E. parasakthi ), and dorsal annuli with microtubercles (dorsal annuli smooth in E. parasakthi ).

Figures

FIGURE 1. Epitrimerus danzhouicus sp. nov. D, dorsal view of female; CG, coxae and female genitalia; L 1, leg І; L 2, leg І.

FIGURE 2. Epitrimerus danzhouicus sp. nov. L, lateral view of female; LO, lateral microtubercles; CGM, coxae and genitalia of male; em, empodium.