Tetra zhouzhis, Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2007

Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2007, Six new species of Te t r a Keifer (Acari: Eriophyidae: Phyllocoptinae) from China, Zootaxa 1614, pp. 1-16 : 13-15

Tetra zhouzhis sp. nov.

( Fig. 6 )

Description. FEMALE: (n = 18) Body fusiform, 178 (162–191), 61 (56–62) wide, 63 (62–64) thick; light yellow. Gnathosoma 26 (25–27), projecting obliquely down, pedipalp coxal setae (ep) 2 (2–3), dorsal pedipalp genual setae (d) 6 (6–7), chelicerae 25 (25–26), oral stylets 23 (23–24). Prodorsal shield 48 (46–50), 50 (49– 52) wide; semicircular; frontal lobe broad; median line present 1/3 at base, median and admedian lines connected at basal 1/3, admedian and submedian lines connected, forming 2 large cells, admedian and submedian lines sinuous. Dorsal tubercles on rear margin, 35 (35–36) apart, scapular setae (sc) 7 (7–8) projecting posteriorly. Coxal area with short lines and granules; anterolateral setae on coxisternum І (1b) 11 (10–13), proximal setae on coxisternum І (1a) 18 (16–19), proximal setae on coxisternum І (2a) 35 (32–36). Prosternal apodeme present. Legs with usual series of setae. Legs І 32 (30–34), femur 9 (8–9), basiventral femoral setae (bv) 8 (7–8); genu 5 (5–6), antaxial genual setae (l'') 17 (17–18); tibia 8 (8–9), paraxial tibial setae (l') 5 (5–6), setae located 1/3 from dorsal base; tarsus 6 (5–6); empodium simple, 4-rayed, tarsal solenidion knobbed. Legs І 27 (25–29), femur 7 (7–8), basiventral femoral setae (bv) 8 (7–9); genu 4 (4–5), antaxial genual setae (l'') 7 (6–7); tibia 5 (5–6); tarsus 5 (4–5); empodium simple, 4-rayed, tarsal solenidion knobbed. Opisthosoma: dorsal opisthosoma with 34 (33–36) annuli, with elliptical microtubercles, ventrally with 60 (58–62) annuli, with round microtubercles. Setae c2 19 (18–20) on ventral annulus 12 (12–13); setae d 55 (49–58) on ventral annulus 24 (23–25), 23 (22–25) apart; setae e 18 (17–20) on ventral annulus 40 (38–42), 13 (12–13) apart; setae f 24 (22–26) on 6th ventral annulus from rear, 12 (11–12) apart. Setae h1 3 (2–3), setae h2 53 (51–56). Female genitalia 11 (11–12), 20 (20–21) wide, coverflap with 12 longitudinal ridges, proximal setae on coxisternum ІІ (3a) 26 (23–28).

MALE: (n = 5) Body fusiform, 160 (156–174), 59 (58–61) wide, light yellow. Gnathosoma 25 (22–26), projecting obliquely down, pedipalp coxal setae (ep) 3 (3–4), dorsal pedipalp genual setae (d) 6 (5–7), chelicerae 23 (20–23), oral stylets 21 (20–22). Prodorsal shield 42 (46–50), 57 (49–52) wide; semicircular; frontal lobe broad. Dorsal tubercles on rear margin, 35 (35–36) apart, scapular setae (sc) 7 (7–8) projecting posteriorly. Coxal area with short lines and granules; anterolateral setae on coxisternum І (1b) 7 (7–8), proximal setae on coxisternum І (1a) 12 (11–13), proximal setae on coxisternum І (2a) 32 (32–33). Prosternal apodeme present. Legs with usual series of setae. Legs І 30 (28–31), femur 7 (7–8), basiventral femoral setae (bv) 7 (7–8); genu 5 (5–6), antaxial genual setae (l'') 15 (14–16); tibia 7 (7–8), paraxial tibial setae (l') 5 (5–6), setae located 1/3 from dorsal base; tarsus 5 (5–6); empodium simple, 4-rayed, tarsal solenidion knobbed.

Legs І 25 (24–26), femur 6 (6–7), basiventral femoral setae (bv) 7 (7–8); genu 4 (4–5), antaxial genual setae (l'') 5 (5–6); tibia 4 (4–5); tarsus 4 (4–5); empodium simple, 4-rayed, tarsal solenidion knobbed. Opisthosoma: dorsal opisthosoma with 30 (28–31) annuli, with elliptical microtubercles, ventrally with 63 (58–64) annuli, with round microtubercles. Setae c2 18 (18–20) on ventral annulus 12 (12–13); setae d 35 (33–36) on ventral annulus 20 (19–20); setae e 13 (11–13) on ventral annulus 38 (38–39), setae f 21 (20–21) on 6th ventral annulus from rear. Setae h1 3 (2–3). Male genitalia 5 (5–6), 18 (17–19) wide, proximal setae on coxisternum ІІ (3a) 20 (19–23).

Types. Holotype, female, China: Shaanxi Province, Zhouzhi County, Hei River, 33.88°N, 108.09°E. August 13, 2005, from Pistacia chinensis Bunge (Anacardiaceae) , coll. Xue, Xiao-Feng and Song, Zi-Wei. Paratypes, 7 females and 5 males, with the same data as holotype; 10 females, China: Heilongjiang Province, Jingbo Lake, 43.52°N, 128.54°E. July 28, 2006, from Pistacia chinensis Bunge (Anacardiaceae) , coll. Xue, Xiao-Feng and Song, Zi-Wei.

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

Etymology. The specific designation zhouzhis is from the name of location of the mites were collected.

Remarks. This species is similar to Tetra louguantais Xue, Song & Hong, 2006 , but can be differentiated by dorsal annuli with microtubercles (dorsal annuli smooth in T. louguantais ), prosternal apodeme present (prosternal apodeme absent in T. louguantais ), median, admedian and submedian lines present (prodorsal shield smooth in T. louguantais ).

Figures

FIGURE 6. Tetra zhouzhis sp. nov. A, dorsal view of female; B, coxae and female genitalia; C, legs І and І; D, empodium; E, male genitalia; F, lateral view of anterior region; G, lateral microtubercles; H, lateral view of the caudal opisthosoma.