Vittacus Keifer

Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2005, A new species of Vittacus Keifer (Acari: Eriophyidae: Phyllocoptinae) from Qinling Area, Shaanxi Province, China, Zootaxa 992, pp. 1-6 : 2

Key to the world species of Vittacus Keifer

1 Dorsal tubercles ahead of rear shield margin ................................................................ 2

­ Dorsal tubercles on rear shield margin.......................................................................... 3

2 Coxal area smooth, empodium 4­rayed, solenidion knobbed, prodorsal shield design obscure, median, admedian and submedian lines absent ................................................ ............................................................................ Vittacus plucheae Abou­Awad & Nasr

­ Coxal area with short lines, empodium 5­rayed, solenidion unknobbed, median, adme­ dian and submedian lines on prodorsal shield present .................................................... ................................................................................. Vittacus fissistigmae Wei & Kuang

3 Coxal area smooth, prodorsal shield with median, admedian and submedian lines ....... ...................................................... Vittacus bougainvilleae Abou­Awad & El­Banhawy

­ Coxal area with granules, prodorsal shield design obscure or smooth ......................... 4

4 Empodium 4­rayed, setae h1 absent .......................................... Vittacus mansoni Keifer

­ Empodium 3­rayed, setae h1 present ..................................... Vittacus humuli sp. nov.