Acarhynchus ferrocalamus
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Ordo: Prostigmata
Familia: Diptilomiopidae
Genus: Acarhynchus
Name
Acarhynchus ferrocalamus Wang, Guo-Quan, 2009 – Wikispecies link – Pensoft Profile
- Acarhynchus ferrocalamus Wang, Guo-Quan, 2009, Zootaxa 2015: 55-57.
Description
Female (n = 6). Body spindleform, yellowish, 165 (156–181), 67 (65–71) wide, 38 (34–39) thick. Gnathosoma—42 (40–44), curved abruptly downward; distal pedipalp attenuate and leg-like, dorsal pedipalp genual setae (d) 4 (4–5), pedipalp coxal setae (ep) 14 (14–15), palp tarsal ventral setae (v) 4 (4–5); cheliceral stylets 50 (49–51). Prodorsal shield— Smooth, 48 (46–51), 56 (55–58) wide; frontal lobe evenly rounded, sculpted with short lines; apical lobe with a filament. Scapular tubercles set ahead of rear shield margin, 21 (20–23) apart, scapular setae (sc) 3 (2–3), directed mesally upward. Coxae— Sternal line present,
coxal area with granules; anterolateral setae on coxisternum І (1 b) 15 (13–20), 10 (9–10) apart; proximal setae on coxisternum І (1 a) 30 (28–32), 7 (6–7) apart; proximal setae on coxisternum ІІ (2 a) 40 (35–44), 25 (24–27) apart. Cox–genital annuli 9. Legs— Segments normal. Legs І 43 (42–47), femur 17 (16–18), basiventral femoral setae (bv) absent; genu 6 (6–7), antaxial genual setae (l) 37 (35–40); tibia 11 (11–12), paraxial tibial setae (l ʹ) located at center, 13 (12–15); tarsus 7 (7–8), paraxial fastigial tarsal setae (ft') 20 (18–25), antaxial fastigial tarsal setae (ft) 25 (22–31), paraxial unguinal tarsal setae (u') 7 (7–8); tarsal empodium 6 (6–7), divided, each branch 7 -rayed, tarsal solenidion 8 (7–8), knobbed. Legs ІІ 42 (40–45), femur 17 (17–18), basiventral femoral setae (bv) 17 (15–18); genu 6 (5–6), antaxial genual setae (l) 17 (15–20); tibia 10 (9–11); tarsus 7 (7–8), paraxial fastigial tarsal setae (ft') 25 (24–28), antaxial fastigial tarsal setae (ft) 10 (8–12), paraxial unguinal tarsal setae (u') 7 (7–8); tarsal empodium 6 (6–7), divided, each branch 7 -rayed, tarsal solenidion 9 (9–10), knobbed. Opisthosoma— Dorsum with median and submedian ridges, dorsal annuli 30 (30–33), smooth; ventral annuli 82 (81–83), with rounded microtubercles; setae c 2 15 (13–19), on ventral annulus 13; setae d100 (84–110), 30 (28–31) apart, on ventral annulus 29; setae e30 (28–36), 20 (18–21) apart, on ventral annulus 54; setae f35 (33–39), 22 (21–23) apart, on 7 th ventral annulus from rear; setae h 1 3 (2–3), setae h 2 110 (85–126). Female genitalia— Coverflap smooth, 17 (15–18), 31 (30–32) wide, proximal setae on coxisternum ІІІ (3 a) 10 (8–12), 13 (12–14) apart. Male (n= 1). Body 151, 58 wide. Prodorsal shield— Smooth, 44, 49 wide; frontal lobe evenly rounded, sculpted with short lines; apical lobe with a filament. Scapular tubercles set ahead of rear shield margin, 19 apart, scapular setae (sc) 2, directed upward. Coxae— Sternal line present, coxal area with granules, anterolateral setae on coxisternum І (1 b) 10, 9 apart; proximal setae on coxisternum І (1 a) 25, 8 apart; proximal setae on coxisternum ІІ (2 a) 30, 21 apart. Legs— Segments normal. Legs І 36, femur 13, basiventral femoral setae (bv) absent; genu 6, antaxial genual setae (l) 30; tibia 8, paraxial tibial setae (l ʹ) 15; tarsus 7, paraxial fastigial tarsal setae (ft') 25, antaxial fastigial tarsal setae (ft) 30, paraxial unguinal tarsal setae (u') 8; tarsal empodium 8, divided, each branch 7 -rayed, tarsal solenidion 8, knobbed. Legs ІІ 31, femur 12, basiventral femoral setae (bv) 12; genu 4, antaxial genual setae (l) 15; tibia 7; tarsus 6, paraxial fastigial tarsal setae (ft') 10, antaxial fastigial tarsal setae (ft) 23, paraxial unguinal tarsal setae (u') 6; tarsal empodium 7, divided, each branch 7 -rayed, tarsal solenidion 8. Opisthosoma— Dorsum with median and submedian ridges; dorsal annuli 30, smooth; ventral annuli 81, with rounded microtubercles; setae c 2 15, on ventral annulus 13; setae d80, 24 apart, on ventral annulus 29; setae e25, 12 apart, on ventral annulus 54; setae f35, 20 apart, on 7 th ventral annulus from rear; setae h 1 2, setae h 2 60. Male genitalia—17 wide, proximal setae on coxisternum ІІІ (3 a) 6, 14 apart.
Materials Examined
Type data.Holotype, female, Fengyangshan National Nature Reserve (27 ° 53´N, 119 ° 11´E, altitude 1510m), Longquan City, Zhejiang Province, China, 29 –Jul.– 2007, from Ferrocalamus strictus Hsueh et Keng f. (Poaceae), collected by Guoquan Wang. Paratypes, 5 females and 1 male, mounted on 6 slides, with the same data as holotype. Relation to host. The mites are vagrant on the undersurfaces of the leaves, no visible damage.
Etymology
Etymology. The specific designation is derived from the generic name of the type host plant. Notes. The species is close to A. bambusae Kuang & Zhao 1998, but can be separated from the latter by the distal pedipalp tibio-tarsus attenuate and finger-like, the coxal area with granules, and seta h 1 present. In A. bambusae, the pedipalp is normal, the coxal area with short lines, and seta h 1 absent (Kuang & Zhao 1998).
Taxon Treatment
- Wang, Guo-Quan; Wei, Sui-Gai; Yang, Ding; 2009: Three new species and a new name in Diptilomiopinae from China (Acari: Diptilomiopidae), Zootaxa 2015: 55-57. doi
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