Abacarus aralioidus, Huang, Kun-Wei, 2006

Huang, Kun-Wei, 2006, Eriophyoid mites (Acari: Eriophyoidea) on Trochodendron aralioides (Trochodendraceae) from Taiwan, Zootaxa 1141, pp. 63-68 : 66

Abacarus aralioidus sp. nov. ( Fig. 2 )

Female: Body spindle­shaped, 156 long, shield 48 long, 55 wide, shield lobe present, shield design with median line from base to basal 4/5, with many dashed lines at anterior; admedian lines semicircular­like, with granules at base, scapular tubercles set at rear shield margin, setae (sc) 9 long, directed to rear, Dt­Dt 21 apart; leg segments normal, fore tibial setae (1') set at 1/2, 6 long; coxal area with several granules; 1st coxal setae (1b) 5 long, Ct1­Ct1 15 apart, 2nd coxal setae (1a) 10 long, Ct2­Ct2 7 apart, 3rd coxal setae (2a) 11 long, Ct3­Ct3 22 apart, Ct1\Ct2 13, Ct1­Ct2 7, Ct2\Ct3 15, Ct2­Ct3 8; claw ending as knob; empodium simple, 5 rayed.

Opisthosoma: dorsum with median ridge shorter than submedian ridges, 1st dorsal annulus broad, dorsal annuli with about 33 annuli, with spiny microtubercles at median ridge, 1st 3 dorsal annuli 14 long, ventral annuli with about 58 microtuberculate rings; lateral setae (c2) 11 long, Lt­Lt 52 apart, Lt\Vt1 46, Lt­Vt1 24; 1st ventral setae (d) 23 long, Vt1­Vt1 31 apart, Vt1\Vt2 27, Vt1­Vt2 24; 2nd ventral setae (e) 8 long, Vt2­Vt2 10 apart, Vt2\Vt3 40, Vt2­Vt3 36; 3rd ventral setae (f) 7 long, Vt3­Vt3 8 apart; accessory setae (h1) absent.

Epigynium: 21 wide, 14 long, with about 12 longitudinal ridges, with dashed lines at base, genital setae (3a) 9 long, Gt­Gt 13 apart.

Male: not seen.

Type data: Holotype female, TAICHUNG: Hoping, 31­Oct.­1996, K. W. Huang; ex Trochodendron aralioides S. et Z. ( Trochodendraceae ). (deposited at NMNS).

Paratypes, 2 females, data same as for holotype.

Relation to host: A vagrant on the lower leaf surface. No apparent damage was observed.

Note: This new species is close to A. bambusae ( Channabasavanna, 1966) Keifer, 1944 but differs in the shield design with a semicircular­like admedian lines, lacking transverse line between admedian lines, and the 5­rayed empodium.

Figures

FIGURE 2. Abacarus aralioidus sp. nov. (Ψ) A, Dorsal view; B, Coxal area and genital region, ventral view; C, Anterior area, lateral view; D, Empodium. (scale A, B = 50 m; C = 40 m; D = 15 m).