Vittacus mandshurica, XUE, XIAO-FENG, GUO, JING-FENG & HONG, XIAO-YUE, 2013

XUE, XIAO-FENG, GUO, JING-FENG & HONG, XIAO-YUE, 2013, <p class = " HeadingRunIn " align = " left "> <strong> Eriophyoid mites from Northeast China (Acari: Eriophyoidea) </ strong> </ p>, Zootaxa 3689 (1), pp. 1-123 : 105-106

Vittacus mandshurica sp. nov.

(Figs 76–78) Gnathosoma 35 (35–36), projecting obliquely down, pedipalp coxal seta (ep) 3 (2–3), dorsal pedipalp genual seta (d) 7 (7–8), cheliceral stylets 33 (31–33). Prodorsal shield 48 (48–50), 63 (60–63) wide, admedian and submedian lines short and parallel; anterior shield lobe broad. Scapular tubercles on rear shield margin, 44 (40–44) apart, scapular setae (sc) 15 (15–16), projecting posterior. Coxigenital region with 7 (7–8) smooth annuli. Coxal plates with short lines, anterolateral setae on coxisternum І (1b) 10 (8–10), 14 (14–15) apart, proximal setae on coxisternum І (1a) 15 (15–17), 9 (9–10) apart, proximal setae on coxisternum І (2a) 43 (23–43), 29 (25–29) apart, tubercles 1b and 1a apart 7 (7–8), tubercles 1a and 2a 10 (10–11) apart. Prosternal apodeme 8 (7–8). Legs with usual series of setae. Leg І 38 (38–40), femur 12 (11–12), basiventral femoral seta (bv) 13 (11–13); genu 5 (4–5), antaxial genual seta (l ') 12 (12–13); tibia 10 (9–10), paraxial tibial seta (l ') 3 (3–4), located at 1/3 from dorsal base; tarsus 8 (7–8), seta ft ' 20 (17–20), seta ft ' 21 (16–21), seta u ' 4 (4–5); tarsal empodium (em) 6 (6–7), simple, 4- rayed, tarsal solenidion (ω) 7 (6–7), knobbed. Leg І 33 (33–35), femur 11 (10–11), basiventral femoral seta (bv) 11 (10–11); genu 4 (4–5), antaxial genual seta (l ') 8 (6–8); tibia 7 (6–7); tarsus 7 (7–8), seta ft ' 5 (5–6), seta ft ' 17 (17–25), seta u ' 4 (4–5); tarsal empodium (em) 6 (6–7), simple, 4-rayed, tarsal solenidion (ω) 7 (6–7), knobbed. Opisthosoma: dorsally with 13 (12–14) annuli, forming thickened bands, with many large fissures, ventrally with 65 (65–73) annuli, with round microtubercles on rear annular margins. Setae c2 4 (4–5) on ventral annulus 14 (14– 17), 62 (58–62) apart; setae d 53 (53–55) on ventral annulus 27 (27–30), 53 (47–53) apart; setae e 18 (18–19) on ventral annulus 45 (45–50), 20 (17–20) apart, setae f 28 (21–28) on 5th ventral annulus from rear, 21 (18–21) apart. Setae h1 3 (2–3), h2 53 (53–70). Female genitalia 13 (12–13), 25 (25–26) wide, coverflap with 12 longitudinal ridges, setae 3a 16 (12–16), 19 (19–20) apart.

MALE: Unknown.

Type material. Holotype, female (slide number NJAUAcariEriH23, marked Holotype), from Corylus sieboldiana Blume var. mandshurica (Maxim.) C. K. Schneid. (Betulaceae) , Jiagedaqi, Heilongjiang Province, P. R. China, 50°24'27''N, 124°06'43''E, elevation 365m, 18 July 2008, coll. Xiao-Feng Xue, Zhen Wang & Zi-Wei Song. Paratypes, 13 females (slide number NJAUAcariEriH23), with the same data as holotype.

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

Etymology. The specific designation mandshurica is from the species name of host plant, mandshurica .

Differential diagnosis. This species is similar to Vittacus humuli Xue, Song & Hong, 2005 , from Humulus japonicus Siebold & Zucc. (Moraceae) , but can be differentiated from the latter by the prodorsal shield with admedian and submedian lines (prodorsal shield smooth in V. humuli ) and coxal plates with short lines (coxal plates with granules in V. humuli ).