Gammaphytoptus striatilobus
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Genus: Gammaphytoptus
Name
Gammaphytoptus striatilobus Wang, Han, Xue & Hong, 2014 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Description
FEMALE: (n=11). Body fusiform, 187 (187–200), 61 (55–61) wide, 56 (56–60) thick; light yellow. Gnathosoma 24 (20–24), projecting obliquely downwards, pedipalp coxal setae (ep) 2 (2–3), dorsal pedipalp genual setae (d) 7 (6–7), cheliceral stylets 24 (23–24). Prodorsal shield 40 (39–42), 50 (48–50) wide, median, admedian and submedian lines complete and parallel, connected with transverse lines, shield design with anterior part covered with striaes; anterior shield lobe present 8 (8–9). Scapular tubercles on rear shield margin, 32 (32–33) apart, scapular setae (sc) 16 (15–16), projecting posteriorly. Coxigenital region with 4 (3–4) semiannuli between coxae and genitalia. Coxal plates with irregular lines, anterolateral setae on coxisternum I (1b) 7 (6–7), 12 (12–13) apart, proximal setae on coxisternum I (1a) 14 (14–17), 11 (11–12) apart, proximal setae on coxisternum II (2a) 26 (26–27), 26 (24–26) apart. Prosternal apodeme absent. Leg I 27 (26–27), femur 9 (9–10), basiventral femoral setae (bv) 8 (8–9); genu 5 (4–5), antaxial genual setae (l’’) 23 (21–23); tibia 6 (5–6), paraxial tibial setae (l’) 6 (6–7), located at centre; tarsus 5 (5–6), paraxia, fastigial, tarsal setae (ft’) 11 (11–12), antaxial, fastigial, tarsal setae (ft’’) 17 (17–18), paraxial, unguinal, tarsal setae (u’) 4 (4–5); tarsal empodium (em) 4 (4–5), simple, 7-rayed, tarsal solenidion (ω) 6 (6–7), rod-like. Leg II 24 (24–26), femur 9 (9–10), basiventral femoral setae (bv) 9 (8–9); genu 4 (4–5), antaxial genual setae (l’’) 7 (6–7); tibia 5 (5–6); tarsus 5 (5–6), paraxia, fastigial, tarsal setae (ft’) 5 (5–6), antaxial, fastigial, tarsal setae (ft’’) 17 (16–17), paraxial, unguinal, tarsal setae (u’) 3 (3–4); tarsal empodium (em) 5 (5–6), simple, 7-rayed, tarsal solenidion (ω) 8 (7–8), rod-like. Opisthosoma dorsally with 34 (34–35) semiannuli, with elliptical microtubercles, ventrally with 49 (49–51) semiannuli, with elliptical microtubercles. Setae c2 12 (12–13) on ventral semiannulus 8 (8–9), 48 (48–50) apart; setae d 41 (40–43) on ventral semiannulus 19 (18–19), 40 (37–40) apart; setae e 11 (11–14) on ventral semiannulus 30 (30–31), 22 (20–22) apart, setae f 25 (24–25) on 6th ventral semiannulus from rear, 18 (18–20) apart. Setae h1 absent, h2 38 (37–38). Female genitalia 12 (12–15), 20 (20–22) wide, coverflap with two rows of ridges, the upper one with 14 (12–14) longitudinal ridges, the other with 12 (12–14) longitudinal ridges, setae 3a 8 (7–8), 15 (14–15) apart.
MALE: (n=7, dorsal view). Body fusiform, 169–190, 56–63 wide; light yellow. Gnathosoma 19–22, projecting obliquely downwards, pedipalp coxal setae (ep) 2–3, dorsal pedipalp genual setae (d) 5–6, cheliceral stylets 23–24. Prodorsal shield 37–40, 47–50 wide, median, admedian and submedian lines complete and parallel, connected with transverse lines, shield design with anterior part covered with striaes; anterior shield lobe present 8–9. Scapular tubercles on rear shield margin, 27–30 apart, scapular setae (sc) 15–16, projecting posteriorly. Coxigenital region with 4–5 semiannuli between coxae and genitalia. Coxal plates with irregular lines, anterolateral setae on coxisternum I (1b) 5–6, 11–12 apart, proximal setae on coxisternum I (1a) 12–15, 8–11 apart, proximal setae on coxisternum II (2a) 25–26, 23–25 apart. Prosternal apodeme absent. Leg I 25–26, femur 9–10, basiventral femoral setae (bv) 8–9; genu 4–5, antaxial genual setae (l’’) 18–22; tibia 5–6, paraxial tibial setae (l’) 5–6, located at centre; tarsus 5–6, paraxia, fastigial, tarsal setae (ft’) 11–12, antaxial, fastigial, tarsal setae (ft’’) 15–17, paraxial, unguinal, tarsal setae (u’) 4–5; tarsal empodium (em) 4–5, simple, 7-rayed, tarsal solenidion (ω) 5–6, rod-like. Leg II 24–26, femur 9–10, basiventral femoral setae (bv) 8–10; genu 3–4, antaxial genual setae (l’’) 6–7; tibia 5–6; tarsus 5–6, paraxia, fastigial, tarsal setae (ft’) 5–6, antaxial, fastigial, tarsal setae (ft’’) 16–17, paraxial, unguinal, tarsal setae (u’) 3–4; tarsal empodium (em) 4–5, simple, 7-rayed, tarsal solenidion (ω) 6–7, rod-like. Opisthosoma dorsally with 33–37 semiannuli, with elliptical microtubercles, ventrally with 47–50 semiannuli, with elliptical microtubercles. Setae c2 15–16 on ventral semiannulus 8–9, 51–57 apart; setae d 40–41 on ventral semiannulus 17–19, 30–35 apart; setae e 13–15 on ventral semiannulus 29–33, 18–19 apart, setae f 24–25 on 6th ventral semiannulus from rear, 20–23 apart. Setae h1 absent, h2 57–58. Male genitalia 16–18 wide, setae 3a 7–8, 15–16 apart.
Type material
Holotype female (slide number NJAUAcariEriHN128C.1; marked Holotype), from Phoebe hunanensis Hand.–Mazz. (Lauraceae), Zhangjiajie National Forest Park, Zhangjiajie City, Hunan Province, P.R. China, 29°20'41"N, 110°27'33"E, elevation 420m, 10 July 2013, coll. Qiong Wang, Xiao Han and Jingfeng Guo, deposited as a slide mounted specimen in the Arthropod/Mite Collection of the Department of Entomology, NJAU, Jiangsu Province, China. Paratypes 10 females and 7 males on 17 microscope slides (slide number NJAUAcariEriHN128C.2–128C.18), with the same data as holotype.
Relation to host
This species is vagrant on lower part of the leaf surface. No damage to the host plant was observed.
Etymology
The specific designation “striatilobus” is from the character of prodorsal shield lobe (“lobus”) marked with parellel fine impressed lines (“striatus”), masculine in gender.
Differential diagnosis
This new species is similar to Gammaphytoptus machilus Li, Wei & Wang, 2009, but can be differentiated from the latter by having: the design of prodorsal shield with anterior part covered with striaes (a prodorsal shield design with two rows of cells in Gammaphytoptus machilus); dorsal semiannuli with elliptical microtubercles (dorsal semiannuli smooth in Gammaphytoptus machilus) and ventral semiannuli with elliptical microtubercles (ventral semiannuli with rounded microtubercles in Gammaphytoptus machilus).
Original Description
- Wang, Q; Han, X; Xue, X; Hong, X; 2014: Three new species of eriophyoid mites (Acari, Eriophyoidea) associated with Lauraceae in China ZooKeys, 406: 81-100. doi
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