Paracolomerus gonglius, 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 : 99

Taxon classification Animalia Trombidiformes Eriophyidae

Paracolomerus gonglius sp. n. Fig. 2

Description.

FEMALE (n=6). Body vermiform, 187 (175-217, excluding gnathosoma), 50 (42-51) wide, 48 (40-47) thick; light yellow. Gnathosoma 24 (23-26), projecting obliquely down, pedipalp coxal setae (ep) 2 (2-3), dorsal pedipalp genual setae (d) 7 (6-8), unbranched, cheliceral stylets 21 (20-23). Prodorsal shield 30 (29-32), 37 (33-37) wide; median line almost complete, interrupted in the middle with short sloping lines on either side at the posterior end, admedian lines complete, submedian lines broken, with several short lines and granules on the lateral side; frontal shield lobe absent. Scapular tubercles near rear shield margin, 24 (23-24) apart, scapular setae (sc) 15 (14-15), projecting posterior. Coxigenital region with 5 (5-6) microtuberculated semiannuli. Coxal plates with several short lines, anterolateral setae on coxisternum I (1b) 7 (7-8), 11 (10-11) apart, proximal setae on coxisternum I (1a) 25 (25-28), 13 (12-13) apart, proximal setae on coxisternum II (2a) 44 (39-44), 24 (23-24) apart, tubercles 1b and 1a apart 5 (5-6), tubercles 1a and 2a 8 (7-8) apart. Internal coxisternal apodeme absent. Legs with usual series of setae. Leg I 27 (26-28), femur 8 (7-8), basiventral femoral setae (bv) 12 (12-14); genu 5 (4-5), antaxial genual setae (l'') 25 (23-26); tibia 6 (6-7), paraxial tibial setae (l') 7 (7-8), located in the middle; tarsus 7 (6-7), setae ft' 15 (14-15), setae ft'' 22 (20-22), seta u' 4 (4-5); tarsal empodium (em) 6 (5-6), simple, 5-rayed, tarsal solenidion (ω) 7 (7-8), rod-like. Leg II 25 (24-26), femur 7 (7-8), basiventral femoral setae (bv) 13 (13-14); genu 5 (4-5), antaxial genual setae (l'') 8 (8-10); tibia 5 (4-5); tarsus 7 (6-7), setae ft' 6 (6-7), setae ft'' 23 (23-25), seta u' 4 (4-5); tarsal empodium (em) 6 (5-6), simple, 5-rayed, tarsal solenidion (ω) 9 (9-10), rod-like. Opisthosoma dorsally arched, 64 (63-66) dorsal annuli, 63 (61-64) ventral annuli; microtubercles on the rear margin of the annuli, elliptical on the anterior part of dorsal annuli, linear and spiny on the posterior part of dorsal annuli and posterior part of ventral annuli, circular on the anterior part of ventral annuli. Setae c2 25 (25-27) on ventral annulus 9 (8-9), 47 (40-49) apart; setae d 65 (58-67) on ventral annulus 19 (18-21), 37 (34-37) apart; setae e 12 (12-14) on ventral annulus 32 (30-32), 20 (20-21) apart; setae f 29 (29-32) on 6th ventral annulus from rear, 21 (19-21) apart. Setae h1 absent, h2 71 (69-74). Genital coverflap 11 (11-12), 22 (21-22) wide, coverflap with two rows of ridges, the basal one with 12 (11-13) longitudinal ridges, the other one with 9 (8-10) longitudinal ridges, proximal setae on coxisternum III (3a) 17 (17-20), 17 (17-18) apart.

MALE. Unknown.

Type host plant.

Rosa beggeriana Schrenk ex Fisch. & C. A. Mey. ( Rosaceae ).

Relation to the host plant.

Vagrant on leaves; no apparent damage was observed.

Type locality.

Gongliu county, Xinjiang Uygur Autonomous Region, China (43°09'37"N, 81°36'34"E), elevation 1,396 m; 3 August 2014, coll. Ji-Wei Li.

Type material.

Holotype: female (slide number SHZU Paracolomerus 1.1, marked Holotype). Paratypes: 6 females mounted on 6 separate microscope slides.

Etymology.

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

Differential diagnosis.

All traits are in accordance with the type species Paracolomerus casimiroae Keifer, 1975 of the genus Paracolomerus (opisthosomal annuli subequal, legs with usual series of setae, scapular tubercles on rear shield margin, scapular setae projected posteriorly) except for ventral surface ornamentation of coxa I (lines do not circle around tubercles 1a and meet at sternum in Paracolomerus gonglius sp. n.; lines originate at setae 1b, circle distally around tubercles 1a and meet at sternum, enclose most of the coxal surface in Paracolomerus casimiroae ).

This species is similar to Paracolomerus fopingacer Xue, Song & Hong, 2011, from Acer sp. L. ( Aceraceae ), but can be differentiated from the latter by median line almost complete, with 5-6 short lines on the lateral sides of prodorsal shield (median line present for half, without short lines on the lateral sides in Paracolomerus fopingacer ), frontal shield lobe absent (frontal shield lobe acuminate in Paracolomerus fopingacer ) and 5-rayed empodium (6-rayed empodium in Paracolomerus fopingacer ).

Remarks.

To date, only three species were reported from the genus Paracolomerus , Paracolomerus casimiroae Keifer, 1975, Paracolomerus davidiae Kuang & Hong, 1995 (in Kuang 1995) and Paracolomerus fopingacer .