Vittacus cannabus, Xue, Guo & Hong, 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 : 106-107

Vittacus cannabus sp. nov.

(Figs 79–82)

Description. FEMALE: (n = 10) Body fusiform, 262 (255–262), 65 (65–70) wide, 75 (75–77) thick; light yellow. Gnathosoma 15 (15–16), projecting obliquely down, pedipalp coxal seta (ep) 2 (2–3), dorsal pedipalp genual seta (d) 5 (5–6), cheliceral stylets 13 (13–14). Prodorsal shield 38 (38–40), 51 (51–53) wide, median line present at basal 1/2, median and admedian lines connected at basal 1/2 and 1/4, forming two cells, admedian and submedian lines connected by transverse lines and forming five cells; anterior shield lobe absent. Scapular tubercles on rear shield margin, 25 (24–25) apart, scapular setae (sc) 32 (32–35), projecting posterior. Coxigenital region with 5 (5– 6) microtuberculated annuli. Coxal plates with granules, anterolateral setae on coxisternum І (1b) 10 (8–10), 13 (13–14) apart, proximal setae on coxisternum І (1a) 31 (31–32), 8 (8–9) apart, proximal setae on coxisternum І (2a) 49 (49–53), 24 (24–25) apart, tubercles 1b and 1a apart 7 (7–8), tubercles 1a and 2a 10 (10–11) apart. Prosternal apodeme 6 (6–7). Legs with usual series of setae. Leg І 34 (34–37), femur 11 (11–12), basiventral femoral seta (bv) 12 (12–13); genu 5 (4–5), antaxial genual seta (l ') 26 (25–26); tibia 8 (7–8), paraxial tibial seta (l ') 8 (7–8), located at 1/3 from dorsal base; tarsus 8 (7–8), seta ft ' 21 (17–21), seta ft ' 26 (25–26), seta u ' 5 (4–5); tarsal empodium (em) 7 (6–7), simple, 4-rayed, tarsal solenidion (ω) 9 (8–9), knobbed. Leg І 30 (30–33), femur 10 (10–11), basiventral femoral seta (bv) 14 (13–14); genu 5 (4–5), antaxial genual seta (l ') 9 (8–9); tibia 5 (5–6); tarsus 8 (7–8), seta ft ' 8 (7–8), seta ft ' 27 (27–28), seta u ' 5 (4–5); tarsal empodium (em) 7 (6–7), simple, 4-rayed,

tarsal solenidion (ω) 9 (8–9), knobbed. Opisthosoma: dorsally with 23 (23–26) annuli, forming thickened bands, with many fissures, ventrally with 75 (66–76) annuli, with spiny microtubercles on rear annular margins. Setae c2 65 (65–68) on ventral annulus 10 (10–13), 26 (26–28) apart; setae d 61 (61–65) on ventral annulus 26 (26–29), 45 (45–48) apart; setae e 16 (16–17) on ventral annulus 45 (45–48), 25 (25–26) apart, setae f 27 (27–29) on 5th ventral annulus from rear, 15 (15–16) apart. Setae h1 3 (2–3), h2 75 (75–77). Female genitalia 15 (15–16), 22 (22–23) wide, coverflap with 6-8 longitudinal ridges, setae 3a 23 (23–25), 21 (21–22) apart.

MALE: Unknown.

Type material. Holotype, female (slide number NJAUAcariEriJ7, marked Holotype), from Cannabis sativa L. ( Cannabaceae ), Baicheng City, Jilin Province, P. R. China, 16 July 2008, coll. Xiao-Feng Xue, Zhen Wang & Zi- Wei Song. Paratypes, 9 females (slide number NJAUAcariEriJ7), with the same data as holotype.

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

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

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 median, admedian and submedian lines (prodorsal shield smooth in V. humuli ).