Phyllocoptes setalsolenidion, Wang, Qiong, Han, Xiao, Xue, Xiao-Feng & Hong, Xiao-Yue, 2014

Wang, Qiong, Han, Xiao, Xue, Xiao-Feng & Hong, Xiao-Yue, 2014, Three new species of eriophyoid mites (Acari, Eriophyoidea) associated with Lauraceae in China, ZooKeys 406, pp. 81-100 : 86-87

Phyllocoptes setalsolenidion sp. n. Figs 5-7

Description.

FEMALE: (n=5, dorsal view). Body fusiform, 198 (186-198), 62 (59-65) wide; light yellow. Gnathosoma 29 (28-31), projecting obliquely downwards, pedipalp coxal setae (ep) 4 (4-5), dorsal pedipalp genual setae (d) 18 (18-21), cheliceral stylets 23 (20-24). Prodorsal shield 41 (41-42), 59 (59-60) wide, median, admedian and submedian lines absent, prodorsal shield with some short lines; anterior shield lobe 10 (10-14), acuminate, ending in a sharp point. Scapular tubercles 5 (5-6), ahead of rear shield margin, 19 (19-24) apart, scapular setae (sc) 10 (8-10), projecting centrad. Coxigenital region with 11 (10-11) semiannuli between coxae and genitalia. Coxal plates with fine granules, anterolateral setae on coxisternum I (1b) 15 (15-16), 12 (12-15) apart, proximal setae on coxisternum I (1a) 16 (15-16), 10 (10-11) apart, proximal setae on coxisternum II (2a) 33 (30-33), 25 (25-26) apart. Prosternal apodeme 4 (4-5). Leg I 37 (36-38), femur 12 (11-13), with fine granules, basiventral femoral setae (bv) 18 (18-20); genu 7 (6-7), antaxial genual setae ( l’’) 22 (20-22); tibia 11 (10-11), paraxial tibial setae ( l’) 10 (9-10), located at 1/3 from dorsal base; tarsus 7 (7-8), paraxia, fastigial, tarsal setae ( ft’) 30 (29-30), antaxial, fastigial, tarsal setae ( ft’’) 35 (32-35), paraxial, unguinal, tarsal setae ( u’) 15 (15-17); tarsal empodium (em) 9 (8-9), simple, 8-rayed, tarsal solenidion (ω) 16 (16-17), seta-like. Leg II 31 (31-32), femur 10 (10-12), with fine granules, basiventral femoral setae (bv) 15 (15-16); genu 5 (4-5), antaxial genual setae ( l’’) 14 (14-16); tibia 5 (5-6); tarsus 7 (5-7), paraxia, fastigial, tarsal setae ( ft’) 18 (18-20), antaxial, fastigial, tarsal setae ( ft’’) 28 (25-28), paraxial, unguinal, tarsal setae ( u’) 14 (14-16); tarsal empodium (em) 10 (9-10), simple, 8-rayed, tarsal solenidion (ω) 15 (15-17), seta-like. Opisthosoma dorsally with 45 (45-48) semiannuli, smooth, ventrally with 70 (70-76) semiannuli, with small and rounded microtubercles set on rear annular margins, last 5 th– 6th semiannuli with elongated and linear tubercles. Setae c2 53 (53-55) on ventral semiannulus 14 (13-15), 49 (49-52) apart; setae d 59 (55-60) on ventral semiannulus 28 (26-28), 33 (32-33) apart; setae e 40 (39-42) on ventral semiannulus 42 (42-45), 15 (15-18) apart, setae f 21 (20-22) on 9th ventral semiannulus from rear, 17 (16-18) apart. Setae h1 4 (4-5), h2 25 (24-25). Female genitalia 14 (14-15), 26 (26-28) wide, coverflap with 14 (12-14) longitudinal ridges, setae 3a 20 (17-20), 17 (17-19) apart.

MALE: (n=1, dorsal view). Body fusiform, 169, 54 wide; light yellow. Gnathosoma 27, projecting obliquely downwards, pedipalp coxal setae (ep) 4, dorsal pedipalp genual setae (d) 18, cheliceral stylets 22. Prodorsal shield 42, 57 wide, median, admedian and submedian lines absent, prodorsal shield with some short lines; anterior shield lobe 12, acuminate, ending in a sharp point. Scapular tubercles 5 ahead of rear shield margin, 24 apart, scapular setae (sc) 8, projecting centrad. Coxigenital region with 9 semiannuli between coxae and genitalia. Coxal plates with fine granules, anterolateral setae on coxisternum I (1b) 12, 14 apart, proximal setae on coxisternum I (1a) 17, 10 apart, proximal setae on coxisternum II (2a) 24, 25 apart. Prosternal apodeme 4. Leg I 30, femur 11, with fine granules, basiventral femoral setae (bv) 15; genu 4, antaxial genual setae ( l’’) 20; tibia 7, paraxial tibial setae ( l’) 10, located at 1/3 from dorsal base; tarsus 6, paraxia, fastigial, tarsal setae ( ft’) 27, antaxial, fastigial, tarsal setae ( ft’’) 28, paraxial, unguinal, tarsal setae ( u’)14; tarsal empodium (em) 8, simple, 8-rayed, tarsal solenidion (ω) 15, seta-like. Leg II 26, femur 10, with fine granules, basiventral femoral setae (bv) 13; genu 4, antaxial genual setae ( l’’) 14; tibia 5; tarsus 6, paraxia, fastigial, tarsal setae ( ft’)13, antaxial, fastigial, tarsal setae ( ft’’) 23, paraxial, unguinal, tarsal setae ( u’) 11; tarsal empodium (em) 7, simple, 8-rayed, tarsal solenidion (ω) 14, seta-like. Opisthosoma dorsally with 42 semiannuli, smooth, ventrally with 71 semiannuli, with small and rounded microtubercles set on rear annular margins, last 5 th– 6th semiannuli with elongated and linear tubercles. Setae c2 50 on ventral semiannulus 14, 40 apart; setae d 52 on ventral semiannulus 25, 30 apart; setae e 40 on ventral semiannulus 43, 15 apart, setae f 24 on 9th ventral semiannulus from rear, 17 apart. Setae h1 5, h2 22. Male genitalia 21 wide, setae 3a 11, 17 apart.

Type material.

Holotype female (slide number NJAUAcariEriHN128A.1; marked Holotype), from Phoebe hunanensis Hand.-Mazz. ( Lauraceae ), Zhangjiajie National Forest Park, Zhangjiajie City, Hunan Province, P.R. China, 29°20'41"N, 110°27'33"E, elevation 420m, 10 July 2013, coll. Qiong Wang, Xiao Han and Jingfeng Guo, deposited as a slide mounted specimen in the Arthropod/Mite Collection of the Department of Entomology, NJAU, Jiangsu Province, China. Paratypes 4 females and 1 male on 5 microscope slides (slide number NJAUAcariEriHN128A.2-128A.6), with the same data as holotype.

Relation to host.

Vagrant on lower part of the leaf surface. No damage to the host plant was observed.

Etymology.

The specific designation setalsolenidion is derived from the shape (setal) of the tarsal solenidion. It is regarded as a noun phrase regardless of the gender and part of speech.

Differential diagnosis.

This new species is similar to Phyllocoptes machilus Wei, Xie & Chen, 2006, but can be differentiated from the latter mainly by possessing: prodorsal shield lacking median, admedian and submedian lines (with median line incomplete, present on the anterior and rear 1/5 respectively, admedian lines complete, forming a network in Phyllocoptes machilus ); anterior shield lobe acuminate, ending in a sharp point (with small frontal lobe in Phyllocoptes machilus ); femur having fine granules (femur smooth in Phyllocoptes machilus ) and tarsal empodium 8-rayed, tarsal solenidion seta-like (tarsal empodium 4-rayed, tarsal solenidion knobbed).