Diptilomiopus ternstroemiae, Wang, Guo-Quan, Wei, Sui-Gai & Yang, Ding, 2009

Wang, Guo-Quan, Wei, Sui-Gai & Yang, Ding, 2009, Five new species of the genus Diptilomiopus Nalepa, 1916 from China (Acari: Diptilomiopidae: Diptilomiopinae), Zootaxa 2107, pp. 53-64 : 61-63

Diptilomiopus ternstroemiae sp. nov.

( Fig. 5 )

Female (n=19). Body spindleform, yellow, 175 (156–206), 79 (70–88) wide, 69 (63–75) thick. Gnathosoma— 40 (38–44), abruptly curved downward; dorsal pedipalp genual setae (d) 7 (5–9), pedipalp coxal setae (ep) 3 (2–3), palp tarsal ventral setae (v) 5 (5–6); cheliceral stylets 56 (53–60).

Prodorsal shield— 27 (29–35), 63 (56–69) wide; frontal lobe absent; median and admedian lines complete; shield designs four rows of cells, first 12 cells along anterolateral shield margin, second 6 cells, third 2 cells and 6 cells at base. Scapular tubercles set ahead of rear shield margin, 20 (19–22) apart, scapular setae absent. Coxae— Sternal line present, coxae sculpted with lines; anterolateral setae on coxisternum І (1b) absent; proximal setae on coxisternum І (1a) 18 (15–22), 8 (6–10) apart; proximal setae on coxisternum І (2a) 42 (40–45), 26 (21–30) apart. Coxigenital annuli 4. Legs— Genu absent. Legs І 35 (32–38), femur 15 (13–16), basiventral femoral setae (bv) absent; tibia 7 (6–8), paraxial tibial setae (l ʹ) absent; tarsus 10 (10–11), paraxial fastigial tarsal setae (ft') 36 (35–38), antaxial fastigial tarsal setae (ft'') 35 (33–38), paraxial unguinal tarsal setae (u') 7 (6–8); tarsal empodium 10 (9–11), divided, each branch 7-rayed, tarsal solenidion 7 (7–8), knobbed. Legs І 30 (28–35), femur 13 (12–15), basiventral femoral setae (bv) absent; tibia 5 (5–6); tarsus 10 (9–11), paraxial fastigial tarsal setae (ft') 28 (26–31), antaxial fastigial tarsal setae (ft'') absent, paraxial unguinal tarsal setae (u') 6 (5–7); tarsal empodium 9 (9–10), divided, each branch 7–rayed, tarsal solenidion 7 (6–7), knobbed. Opisthosoma— Dorsum with median and admedian ridges, dorsal annuli 52 (49–54), smooth; ventral annuli 78 (77–79), with rounded microtubercles; setae c2 absent; setae d 15 (10–20), 43 (38–49) apart, on ventral annulus 31; setae e 9 (8–10), 24 (22–29) apart, on ventral annulus 48; setae f 29 (25–33), 26 (24–30) apart, on 9th ventral annulus from rear; setae h1 1 (1–2), setae h2 65 (50–65). Female genitalia— Coverflap sculpted with basal granules, 22 (20–23), 27 (25–28) wide, proximal setae on coxisternum ІІ (3a) 8 (7–8), 19 (18–20) apart.

Male (n=6). Body 156 (149–163), 69 (67–71) wide. Male genitalia— 17 (16–18) wide, proximal setae on coxisternum ІІ (3a) 8 (7–8), 15 (14–15) apart.

Type data. Holotype female, from Ternstroemia nitida Merr. (Theaceae) , Fengyangshan National Nature Reserve (27°53´N, 119°11´E), Longquan City, Zhejiang Province, China, 31-Jul.-2007, collected by Guo- Quan Wang. Paratypes, 10 females and 4 males from T. nitida, Fengyangshan National Nature Reserve; 8 females and 2 males from Ternstroemia gymnanthera (Wight & Arn.) Sprague, Kunming (25°02´N, 102°42´E), Yunnan Province, China, 4-Dec.-2007, were mounted on 24 slides, with the same data as holotype.

Relation to host. The mites are vagrant on the undersurfaces of the leaves, no visible damage seen.

Etymology. The specific designation is derived from the generic name of the type host plant.

Notes. The species is close to D. racemosae ( Chandrapatya & Boczek 2001) , but can be separated from the latter by the prodorsal shield with 26 cells and the median line complete. In D. racemosae , the prodorsal shield design has 22 cells and the median line is discontinuous ( Chandrapatya & Boczek 2001).

Figures

FIGURE 5. Diptilomiopus ternstroemiae sp. nov. CGF — coxigenital area of female; D — dorsal aspect of female; E — empodium; GM — male genitalia; IG — internal genitalia, female; L — lateral view of female; L 1 — Legs І; L 2 — Legs І (Scale bar: CGF — 56; D, L — 60; E — 31; GM — 39; L 1, L 2 — 34).