Aceria sylvestrae, Huang, Kun-Wei, 2008

Huang, Kun-Wei, 2008, Aceria (Acarina: Eriophyoidea) in Taiwan: five new species and plant abnormalities caused by sixteen species, Zootaxa 1829, pp. 1-30 : 23-24

Aceria sylvestrae sp. nov. ( Fig. 9 ; photo 13)

Female: (n=3) Body worm-like, 136 long; prodorsal shield 22 long, 30 wide, anterior lobe present; prodorsal shield design with several short lines, median lines absent, admedian complete; scapular tubercles set at prodorsal shield rear margin, setae (sc) 18 long, directed backward, sct-sct 18 apart; leg segments normal, foretibial seta (1') 6 long, set at half; 1st coxal setae (1b) 7 long, 1bt-1bt 6 apart, 2nd coxal setae (1a) 7 long, 1at- 1at 9 apart, 3rd coxal setae (2a) 10 long, 2at-2at 19 apart; solenidion ending as knob; empodium simple, 5- rayed.

Opisthosoma: with about 84 microtuberculate rings; first 3 rings 4 long; lateral setae (c2) 12 long, c2t-c 2t 39 apart, c 2t \d t 40, c2t-dt 22; 1st ventral setae (d) 21 long, dt-dt 30 apart, dt\et 34, dt-et 26; 2nd ventral setae (e) 16 long, et-et 19 apart, et\ft 34, et-ft 31; 3rd ventral setae (f) 13 long, ft-ft 15 apart; setae h1 present.

Coverflap: 17 wide, 9 long, with about 14 longitudinal lines, basal area with granules, genital setae (3a) 6 long, 3at-3at 13 apart.

Male: not seen.

Type data: Holotype, female, Neihu, Taipei; 2-Jan.-1996, M. M. Yang; ex. Elaeocarpus sylvestris (Lour.) Poiret (Elaeocarpaceae) . Paratypes, 2 females, with same data as holotype.

Relation to host: Mites form irregular galls on the upper leaf surface.

Note: This new species resembles A. delhiensis ( Mohanasundaram, 1982) but differs in submedian lines with broken lines and coxal area with granules.

Etymology: The specific designation is derived from the specific name of the type host plant.

PHOTO 13. Galls on upper leaf surface of Elaeocarpus sylvestris caused by Aceria sylvestrae sp. nov.

Figures

FIGURE 9. Aceria sylvestrae sp. nov. (Ψ) A, dorsal view; B, legs and genital region, ventral view; C, anterior area, lateral view; D, empodium. (scale A, B = 50 μm; C = 40 μm; D = 15 μm).