Gammaphytoptus schimae, Wang, Guo-Quan, Wei, Sui-Gai & Yang, Ding, 2012

Wang, Guo-Quan, Wei, Sui-Gai & Yang, Ding, 2012, A new genus, two new species and a new record of subfamily Cecidophyinae (Acari, Eriophyidae) from China, ZooKeys 180, pp. 9-18 : 14-16

Gammaphytoptus schimae sp. n. Figs 8-13

Diagnosis.

Body fusiform, yellow. Gnathosoma curved obliquely downward, dorsal genual setae (d) bend forming obtuse angle at middle. Prodorsal shield with frontal lobe present; all lines bold and connected with transverse lines forming network; scapular tubercles and setae absent. Coxisternal plates sculptured with lines, prosternal apodeme present, coxigenital annuli 4. Legs segments normal, legs II with genual setae ( l’’) absent, tarsal empodium entire, 6-rayed, tarsal solenidion knobbed. Dorsal opisthosoma with shallow median furrow, dorsal annuli smooth; ventral annuli with rounded microtubercles, setae h1 absent. Female genitalia coverflap with two rows of ridges.

Description.

Female (n = 11). Body fusiform, yellow, 183 (169-200), 71 (65-78) wide, 44 (38-52) thick.

Gnathosoma. Curved obliquely downward, 34 (28-35), coxal setae (ep) 2 (2-3), dorsal genual setae (d) 10 (9-11); cheliceral stylets 30 (28-32).

Prodorsal shield. 51 (48-52), 55 (50-63) wide, frontal lobe present; median, admedian and submedian lines complete, connected with three transverse lines forming network; scapular tubercles placed at rear shield margin, 35 (31-39) apart, scapular setae (sc) 8 (8-9), directed backward and divergence.

Coxisternal plates. Prosternal apodeme present, coxisternal plates smooth; anterolateral setae on coxisternum I (1b) 8 (7-9), 13 (12-13) apart; proximal setae on coxis ternum I (1a) 25 (19-31), 15 (14-15) apart; proximal setae on coxisternum II (2a) 35 (28-39), 28 (27-30) apart. Coxigenital annuli 4.

Legs. Segments normal. Legs I 36 (34-38), trochanter 2 (2), femur 12 (12-13), femoral setae (bv) 18 (15-22); genu 4 (4-5), genual setae ( l’’) 35 (31-40); tibia 10 (9-10), tibial setae (l') located 1/4 from apical, 8 (7-8); tarsus 8 (7-8), iner fastigial tarsal setae ( ft’) 20 (18-23), outer fastigial tarsal setae ( ft’’) 25 (23-28), unguinal tarsal setae ( u’) 5 (5-6); tarsal empodium entire, 7 (7-8), 6-rayed, tarsal solenidion 10 (9-10), knobbed. Legs II 31 (29-34), trochanter 2 (2), femur 11 (11-12), femoral setae (bv) 23 (19-27); genu 3 (3-4), genual setae ( l’’) 10 (7-12); tibia 7 (7-8); tarsus 8 (7-8), inner fastigial tarsal setae ( ft’) 10 (9-12), outer fastigial tarsal setae ( ft’’) 25 (22-29), unguinal tarsal setae ( u’) 5 (5-6); tarsal empodium entire, 8 (8-9), 6-rayed, tarsal solenidion 10 (9-11), knobbed.

Opisthosoma. Dorsum evenly rounded, dorsal annuli 59-60, with semi-translucency elongated microtubercles; ventral annuli 81, with filament microtubercles; setae c2 38 (35-40), on ventral annulus 13th; setae d 45 (37-50), 43 (38-45) apart, on ventral annulus 28th; setae e 27 (23-32), 25 (23-26) apart, on ventral annulus 44th; setae f 38 (34-45), 23 (21-26) apart, on 7th ventral annulus from rear; setae h1 absent, setae h2 57 (53-65).

Female genitalia. Near coxisternal plates, coverflap with two rows of ridges, 17 (16-18), 30 (29-22) wide, proximal setae on coxisternum III (3a) 20 (17-25), 13 (13-14) apart.

Male. Unknown.

Type material.

Holotype female, China: Zhejiang, Longquan City, Fengyangshan National Nature Reserve (27°53'N, 119°11'E), 28. VII. 2007, collected by Guo-Quan Wang, from Schima superba Gardn.&Champ. ( Theaceae ). Paratypes, 8 females.

Distribution.

China (Zhejiang).

Etymology.

The species is named from the generic name of the type host plant.

Remarks.

This new species is similar to Gammaphytoptus zuihoensus Huang & Wang, 2004, but they can be easily separated as follows: in Gammaphytoptus schimae , median line is complete, setae h1 is absent and infesting Schima superba Gardn.&Champ.; in Gammaphytoptus zuihoensus , median line is incomplete, setae h1 is present and infesting Machilus zuihoensis Hay. var. zuihoensis ( Huang and Wang 2004).