Tegolophus liangyuanicus, 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 : 23

Tegolophus liangyuanicus sp. nov.

( Figs 5 & 6 )

Description. FEMALE: (n = 4) Body fusiform, 152 (152–160), 35 (35–36) wide, 33 (33–35) thick; light yellow in color. Gnathosoma 23 (22–23), projecting obliquely down, pedipalp coxal seta (ep) 2 (2–3), dorsal pedipalp genual seta (d) 7 (7–8), cheliceral stylets 15 (15–16). Prodorsal shield 41 (38–41), 32 (32–33) wide; anterior shield lobe broad, with four spines anteriorly; admedian lines connected at anterior and posterior, forming a quadrangle anterior and an ellipse posterior. Scapular tubercles on rear shield margin, 27 (27–28) apart, scapular setae (sc) 11 (11–13), projecting posterior. Coxal plates smooth, anterolateral setae on coxisternum І (1b) 5 (5–7), 6 (6–7) apart, proximal setae on coxisternum І (1a) 12 (10–12), 5 (5–6) apart, proximal setae on coxisternum І (2a) 28 (28–30), 15 (15–16) apart. Prosternal apodeme 7 (6–7). Legs with usual series of setae. Leg І 26 (24–28), femur 9 (8–9), basiventral femoral seta (bv) 7 (7–8); genu 4 (3–4), antaxial genual seta (l'') 20 (18–20); tibia 5 (5–6), paraxial tibial seta (l') 4 (3–4), located at 1/3 from proximal tibial margin; tarsus 4 (4–5), seta ft' 18 (15–18), seta ft'' 14 (14–15), seta u' 3 (2–3); tarsal empodium (em) 5 (4–5), simple, 5-rayed, tarsal solenidion (ω) 4 (4–5), rod-like. Leg І 23 (22–24), femur 7 (6–7), basiventral femoral seta (bv) 7 (7–8); genu 4 (3–4), antaxial genual seta (l'') 6 (5–6); tibia 4 (4–5); tarsus 4 (4–5), seta ft' 7 (5–7), seta ft'' 15 (15–16), seta u' 3 (2–3); tarsal empodium (em) 5 (4–5), simple, 5-rayed, tarsal solenidion (ω) 4 (4–5), rod-like. Opisthosoma: opisthosoma dorsally with 28 (28–30) annuli, with three ridges and filament microtubercles, ventrally with 45 (45–47) annuli, with elliptical microtubercles. Setae c2 17 (17–18) on ventral annulus 8 (8–9), 30 (30–31) apart; setae d 15 (13–15) on ventral annulus 16 (15–16), 26 (25–26) apart; setae e 5 (5–6) on ventral annulus 26 (26–28), 9 (9–10) apart, setae f 15 (15–19) on 6th ventral annulus from rear, 13 (13–14) apart. Setae h1 absent, h2 42 (42–43). Female genitalia 8 (8–9), 17 (16–17) wide, coverflap with 14 longitudinal ridges, setae 3a 11 (7–11), 15 (15–16) apart.

MALE: (n = 3, dorsal view) Body fusiform, 138–140, 33–34 wide; light yellow in color. Gnathosoma 22–23, projecting obliquely down, pedipalp coxal seta (ep) 2–3, dorsal pedipalp genual seta (d) 5–6, cheliceral stylets 13–14. Prodorsal shield 32–33, 27–28 wide; anterior shield lobe broad, with four spines anteriorly; admedian lines connected at anterior and posterior, forming a quadrangle anterior and an ellipse posterior. Scapular tubercles on rear shield margin, 23–24 apart, scapular setae (sc) 10–11, projecting posterior. Coxal plates smooth, anterolateral setae on coxisternum І (1b) 4–5, 6–7 apart, proximal setae on coxisternum І (1a) 10–13, 5–6 apart, proximal setae on coxisternum І (2a) 18–20, 15–16 apart. Prosternal apodeme 6–7. Legs with usual series of setae. Leg І 24–26, femur 6–7, basiventral femoral seta (bv) 7–8; genu 3–4, antaxial genual seta (l'') 14–16; tibia 4–5, paraxial tibial seta (l') 3–4, located at 1/3 from proximal tibial margin; tarsus 3–4, seta ft' 15–16, seta ft'' 14–15, seta u' 2–3; tarsal empodium (em) 4–5, simple, 5- rayed, tarsal solenidion (ω) 4–5, rod-like. Leg І 21–23, femur 5–6, basiventral femoral seta (bv) 5–6; genu 3–4, antaxial genual seta (l'') 5–6; tibia 3–4; tarsus 3–4, seta ft' 5–6, seta ft'' 12–13, seta u' 2–3; tarsal empodium (em) 4–5, simple, 5-rayed, tarsal solenidion (ω) 4–5, rod-like. Opisthosoma: opisthosoma dorsally with 28–30 annuli, with three ridges, with filament microtubercles, ventrally with 43–45 annuli, with elliptical microtubercles. Setae c 2 17–18 on ventral annulus 7–8, 28–29 apart; setae d 18–19 on ventral annulus 15–16, 21–23 apart; setae e 6–7 on ventral annulus 25–27, 9–10 apart, setae f 17–18 on 6th ventral annulus from rear, 13–14 apart. Setae h1 absent, h2 38–40. Male genitalia 12–14 wide, setae 3a 7–8, 11–12 apart.

Type material. Holotype, female (slide number Q4, marked Holotype), from Litchi chinensis Sonn. (Sapindaceae) , 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, 3 females and 3 males (slide number Q4), with the same data as holotype.

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

Etymology. The specific designation liangyuanicus is from the name of location, Liangyuan, where the type species was collected.

Differential diagnosis. This species is similar to T. fargesiae Xue, Song, Amrine & Hong, 2006 (from Fargesia qinlingensis ), but can be differentiated from the latter by the frontal lobe broad and with four spines (frontal lobe acuminate in T. fargesiae ), coxal plates smooth (coxal plates with short lines in T. fargesiae ), setae h1 absent (setae h1 present in T. fargesiae ), and empodium 5-rayed (empodium 8-rayed in T. fargesiae ).

Figures

FIGURE 5. Tegolophus liangyuanicus sp. nov. D, dorsal view of female; CG, coxae and female genitalia; LO, lateral microtubercles; em, empodium.

FIGURE 6. Tegolophus liangyuanicus sp. nov. L, lateral view of female; L 1, leg І; L 2, leg І; CGM, coxae and genitalia of male.