Aceria shepherdiae Keifer, 1966

Huang, Kun-Wei, 2008, Aceria (Acarina: Eriophyoidea) in Taiwan: five new species and plant abnormalities caused by sixteen species, Zootaxa 1829, pp. 1-30 : 19-20

Aceria shepherdiae Keifer, 1966 ( Fig. 8 ; photo 7)

Aceria shepherdiae Keifer, 1966: 35 , pl. 2 PHOTO 7. Flowers and buds of Elaeagnus thunbergii infested by Aceria shepherdiae Keifer, 1966 .

Female: (n=3) Body worm-like, 160 long; prodorsal shield 28 long, 34 wide, anterior lobe present; prodorsal shield design with median lines complete, admedian lines complete, convex at basal two-thirds, submedian lines converge to apex; scapular tubercles set at prodorsal shield rear margin, setae (sc) 20 long, directed backwards, sct-sct 21 apart; leg segments normal, foretibial (1') seta set at half, 4 long; 1st coxal setae (1b) 7 long, 1bt-1bt 10 apart, 2nd coxal setae (1a) 12 long, 1at-1at 10 apart, 3rd coxal setae (2a) 34 long, 2at-2at 22 apart; solenidion ending as knob; empodium simple, 5-rayed.

Opisthosoma: with about 117 microtuberculate rings; first 3 rings 4 long; lateral setae (c2) 17 long, c2t-c 2t 43 apart, c 2t \d t 45, c2t-dt 24; 1st ventral setae (d) 36 long, dt-dt 34 apart, dt\et 41, dt-et 32; 2nd ventral setae (e) 9 long, et-et 18 apart, et\ft 57, et-ft 54; 3rd ventral setae (f) 15 long, ft-ft 16 apart; setae h1 present.

Coverflap: 21 wide, 10 long, with about 13 longitudinal lines, genital setae (3a) 7 long, 3at-3at 15 apart.

Male: not seen.

Specimens examined: 3 females, Puli, Nantou; 1-Feb.-1996, G. S. Tung; ex. Elaeagnus thunbergii Serv. (Elaeagnaceae) .

Relation to host: Vagrant on flowers; injurious to flowers. Distribution: USA, Taiwan (new record).

Figures

FIGURE 8. Aceria shepherdiae Keifer, 1966 (Ψ) A, dorsal view; B, legs and genital region, ventral view; C, posterior area, lateral view; D, empodium. (scale A, B = 50 μm; C = 40 μm; D = 15 μm).