Rhyncaphytoptus fuyuniensis, Li, Ji-Wei, Wang, Zhen-Hui, Xue, Xiao-Feng & Zhang, Jian-Ping, 2015

Li, Ji-Wei, Wang, Zhen-Hui, Xue, Xiao-Feng & Zhang, Jian-Ping, 2015, Three new species of eriophyoid mites (Acari, Eriophyoidea) from Xinjiang Uygur Autonomous Region, China, ZooKeys 508, pp. 97-111 : 101-103

Taxon classification Animalia Trombidiformes Diptilomiopidae

Rhyncaphytoptus fuyuniensis sp. n. Figs 4, 5

Description.

FEMALE (n=8). Body fusiform, 256 (216-267, excluding gnathosoma), 60 (55-64) wide, 58 (54-62) thick; light yellow. Gnathosoma 61 (55-64), projecting downwards, pedipalp coxal setae (ep) 3 (2-3), dorsal pedipalp genual setae (d) 7 (6-7), unbranched, cheliceral stylets 83 (76-88). Prodorsal shield 29 (28-30) excluding the thin anterior process length from frontal lobe, 47 (46-49) wide, sub-triangular in anterior shape; long and flexible frontal lobe ending with a thin anterior process, the process extends for 14 (13-15). Median line very short, on 1/5 anterior part of prodorsal shield; admedian lines complete and connected at base with transverse lines, forming a vase-shaped outline; semicircled line between the scapular tubercles. Scapular tubercles ahead of rear shield margin, 30 (28-31) apart, scapular setae (sc) 47 (46-50), projecting forward. Coxigenital region with 15 (14-16) microtuberculated semiannuli. Coxal plates with 1-3 short lines, anterolateral setae on coxisternum I (1b) 10 (10-12), 10 (10-11) apart, proximal setae on coxisternum I (1a) 32 (29-33), 10 (10-11) apart, proximal setae on coxisternum II (2a) 45 (42-47), 29 (28-30) apart, tubercles 1b and 1a apart 7 (6-7), tubercles 1a and 2a 10 (9-11) apart. Internal coxisternal apodeme 7 (6-7). Legs with usual series of setae. Leg I 42 (41-43), femur 13 (12-14), basiventral femoral setae (bv) 13 (13-15); genu 7 (6-7), antaxial genual setae (l'') 23 (23-25); tibia 10 (10-11), paraxial tibial setae (l') 7 (7-8), located at 1/3 from dorsal base; tarsus 8 (7-8), setae ft' 20 (18-20), setae ft'' 26 (23-26), seta u' 5 (4-5); tarsal empodium (em) 8 (7-8), simple, 10-rayed, tarsal solenidion (ω) 8 (8-9), rod-like. Leg II 39 (38-40), femur 13 (12-13), basiventral femoral setae (bv) 14 (14-16); genu 6 (5-6), antaxial genual setae (l'') 9 (9-11); tibia 8 (7-9); tarsus 8 (8-9), setae ft' 10 (9-11), setae ft'' 30 (26-30), seta u' 5 (4-5); tarsal empodium (em) 8 (7-8), simple, 10-rayed, tarsal solenidion (ω) 10 (10-11), rod-like. Opisthosoma dorsally arched, 25 (20-25) dorsal annuli, 92 (90-104) microtuberculated ventral annuli; the anterior dorsal annuli smooth (for about 5/6 of them), the anterior ventral annuli with circled microtubercles (for about 2/3 of them), the posterior part of dorsal and ventral annuli with linear and spiny microtubercles. Setae c2 13 (12-14) on ventral annulus 19 (17-21), 59 (53-61) apart; setae d 51 (46-51) on ventral annulus 37 (36-42), 45 (41-45) apart; setae e 26 (26-29) on ventral annulus 55 (53-64), 25 (24-26) apart; setae f 30 (27-30) on 7th ventral annulus from rear, 21 (20-22) apart. Setae h1 3 (3-4), h2 75 (70-79). Genital coverflap 15 (14-16), 30 (28-30) wide, coverflap with many granules basally, proximal setae on coxisternum III (3a) 14 (13-14), 20 (19-21) apart.

MALE (n=5). Similar in shape and prodorsal shield arrangement to female, 202-243. Prodorsal shield 22-25 without the frontal lobe length, 45-48 wide; scapular setae sc 40-46, 27-30 apart. Opisthosoma dorsally with 19-21 annuli; ventrally with 78-85 annuli, dorsal and ventral microtubercles are similar to females. Male genitalia 21-22 wide, setae 3a 12-13, 18-20 apart.

Type host plant.

Cotoneaster ignavus E. L. Wolf ( Rosaceae ).

Relation to the host plant.

Vagrant on leaves; no apparent damage was observed.

Type locality.

Fuyun county, Xinjiang Uygur Autonomous Region, China (47°17'39"N, 89°58'26"E), elevation 1,359 m; 15 August 2014, coll. Ji-Wei Li.

Type material.

Holotype: female (slide number SHZU Rhyncaphytoptus 7.1, marked Holotype). Paratypes: 12 females and 15 males mounted on 27 separate microscope slides.

Etymology.

The specific designation fuyuniensis comes from the name of location, Fuyun, where the new species was collected.

Differential diagnosis.

This species is similar to Rhyncaphytoptus buxifoliae Song, Xue & Hong, 2009, from Cotoneaster buxifolius Lindl. ( Rosaceae ), but can be differentiated from the latter by median line very short, on 1/5 anterior part of prodorsal shield (prodorsal shield with incomplete median line on posterior 1/2 in Rhyncaphytoptus buxifoliae ), scapular tubercles small (scapular tubercles 5-13 long in Rhyncaphytoptus buxifoliae ) and with a long and flexible frontal lobe (lack a distinct, long frontal lobe in Rhyncaphytoptus buxifoliae ).