Proartacris cathayensis, Xue & Han & Song & Hong, 2012

Xue, Xiao-Feng, Han, Xiao, Song, Zi-Wei & Hong, Xiao-Yue, 2012, Eriophyoid mite fauna of Shaanxi Province, China, with descriptions of five new species (Acari: Eriophyoidea) 3292, Zootaxa 3292 (1), pp. 1-71 : 15

Proartacris cathayensis sp. nov.

( Figs 2–3 )

Description. FEMALE: (n = 18) Body vermiform, 258 (205–266), 68 (66–68) wide, 72 (70–72) thick; light yellow. Gnathosoma 22 (21–22), projecting obliquely down, pedipalp coxal seta (ep) 3 (2–3), dorsal pedipalp genual seta (d) 13 (12–13), cheliceral stylets 20 (18–20). Prodorsal shield 40 (37–40), 47 (45–47) wide, median line short at base and connected with admedian lines by a “V” shape, admedian and submedian lines complete and connected at anterior 1/3 by a transverse line; anterior shield lobe present. Scapular tubercles near rear shield margin, 12 (12–13) apart, scapular setae (sc) 25 (20–25), projecting posteriorly. Coxigenital region with 6 (6–7) microtuberculated annuli. Coxal plates with short lines, anterolateral setae on coxisternum І (1b) 19 (14–19), 12 (11–12) apart, proximal setae on coxisternum І (1a) 35 (28–35), 11 (10–11) apart, proximal setae on coxisternum І (2a) 46 (42–46), 24 (23–24) apart, tubercles 1b and 1a apart 3 (3–4), tubercles 1a and 2a 7 (7–8) apart. Prosternal apodeme 6 (6–7). Legs with usual series of setae. Leg І 36 (36–40), femur 12 (11–12), basiventral femoral seta (bv) 19 (17–19); genu 5 (5–6), antaxial genual seta (l ') 31 (29–31); tibia 7 (7–8), paraxial tibial seta (l ') 16 (12–16), located at 1/3 from dorsal base; tarsus 9 (9–10), seta ft ' 26 (25–26), seta ft ' 30 (28–30), seta u ' 7 (6–7); tarsal empodium (em) 10 (10–11), simple, 6-rayed, tarsal solenidion (ω) 12 (12–13), rod-like. Leg І 30 (30–32), femur 8 (8–9), basiventral femoral seta (bv) 19 (18–19); genu 5 (4–5), antaxial genual seta (l ') 16 (12–16); tibia 5 (4–5); tarsus 9 (9–10), seta ft ' 8 (7–8), seta ft ' 32 (28–32), seta u ' 8 (7–8); tarsal empodium (em) 12 (11–12), simple, 6-rayed, tarsal solenidion (ω) 14 (14–15), rod-like. Opisthosoma: opisthosoma dorsally with 54 (54–58) annuli, with spiny microtubercles projecting ahead of rear annular margins, ventrally with 60 (57–60) annuli, with spiny microtubercles projecting ahead of rear annular margins. Setae c2 28 (26–28) on ventral annulus 8 (8–9), 62 (62–63) apart; setae d 71 (62–71) on ventral annulus 22 (19–22), 50 (48–50) apart; setae e 20 (15–20) on ventral annulus 39 (37–39), 32 (32–33) apart, setae f 19 (17–19) on 5–6th ventral annulus from rear, 17 (17–19) apart. Setae h1 3 (2–3), h2 98 (76–98). Female genitalia 14 (12–14), 24 (20–24) wide, coverflap with 12–14 longitudinal ridges, setae 3a 22 (20–22), 19 (17–19) apart.

MALE: Unknown.

Type material. Holotype, female (slide number NJAUAcariEri421, marked Holotype), from Carya cathayensis Sarg. (Juglandaceae) , Cuihua Mountain, Xi' an City, Shaanxi Province, P. R. China, 34°59'40' N, 109°00'04' E, elevation 901m, 15 August 2005, coll. Xiao-Feng Xue & Zi-Wei Song. Paratypes, 7 females (slide number NJAUAcariEri421), with the same data as holotype.

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

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

Differential diagnosis. This species is similar to Proartacris taiwanensis Huang, 2001 , but can be differentiated from the latter by the prodorsal shield with median line present, admedian and submedian lines connected (median line absent, admedian and submedian lines separated in Proartacris taiwanensis ), dorsal and ventral annuli with spiny microtubercles projecting ahead of rear annular margins (dorsal and ventral annuli on rear annular margins in Proartacris . taiwanensis ), and coxal plates with short lines (coxal plates with granules in Proartacris taiwanensis ).

Figures

FIGURE 2. Proartacris cathayensis sp. nov.: D. Dorsal view of female; CG. Coxae and female genitalia; em. Empodium.

FIGURE 3. Proartacris cathayensis sp. nov.: L. Lateral view of female; LO. Lateral microtubercles; L1. Leg І; L2. Leg І.