Tetra
Creators: name: Xue, Xiao-Feng
name: Song, Zi-Wei
name: Hong, Xiao-Yue
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Eriophyidae
Tetra

description: Key to species in the genus Tetra in China
1 Coxal area smooth......................................................................................................... 2
­ Coxal area with short lines or granules ....................................................................... 12
2 Setae h1 absent .......................................................................... Tetra intermedia Huang
­ Setae h1 present............................................................................................................. 3
3 Empodium 7­rayed ....................................................................... Tetra yushania Huang
­ Empodium 4­rayed........................................................................................................ 4
4 Coxal area with prosternal apodeme ....................................... Tetra similisforca Huang
­ Coxal area without prosternal apodeme ........................................................................ 5
5 Shield design without median line ................................................................................ 6
­ Shield design with median line ..................................................................................... 8
6 Admedian lines on prodorsal shield separate .................................. Tetra acerii sp. nov.
­ Admedian lines on prodorsal shield connected............................................................. 7
7 Admedian lines on prodorsal shield connected at basal 2/3 .............. Tetra toona Huang
­ Admedian lines on prodorsal shield connected at base ............... Tetra sorbusis sp. nov.
8 Shield design with median line separate from admedian lines ....... Tetra lucidi sp. nov.
­ Shield design with median line connected with admedian lines................................... 9
9 Shield design with median line 1/3 anterior, female genital coverflap with 8 to 10 lon­ gitudinal ridges ........................................................ Tetra guiyangensis Kuang & Hong
­ Shield design with median line 1/3 at base, female genital coverflap with more than 10 longitudinal ridges....................................................................................................... 10
10 Femur Ι and ΙΙ with longitudinal lines ......................... Tetra polygoni Wei, Chen & Xie
­ Femur smooth.............................................................................................................. 11
11 Shield design with admedian lines connected at basal 1/3, admedian and submedian lines separate ........................................................... Tetra clerodendri Wei, Chen & Xie
­ Shield design with admedian lines connected at basal 1/3 and 2/3, admedian and sub­ median lines connected ............................................................... Tetra smilaxis sp. nov.
12 Coxal area with granules............................................................................................. 13
­ Coxal area with short lines .......................................................................................... 15
13 Female genital coverflap smooth, empodium 7­rayed ...................................................
..................................................................................... Tetra dalbergiae Kuang & Zhuo ­ Female genital coverflap with 10 longitudinal ridges, empodium 4­rayed................. 14
14 Prodorsal shield with lateral lobe, dorsal annuli with elliptical microtubercles. ............ ................................................................................................. Tetra ningshanis sp. nov.
­ Prodorsal shield without lateral lobe, dorsal annuli with spiny microtubercles.............. .......................................................................................... Tetra suspensae Xue & Hong
15 Dorsal annuli with microtubercles .............................................................................. 16
­ Dorsal annuli smooth .................................................................................................. 23
16 Empodium 2­rayed ...................................................................... Tetra concava (Keifer)
­ Empodium more than 2­rayed..................................................................................... 17
17 Dorsal annuli with elliptical microtubercles ............................................................... 18
­ Dorsal annuli with spiny or filament microtubercles .................................................. 20
18 Empodium 4­rayed, shield design obscure ................................. Tetra cuihuae sp. nov.
­ Empodium 6 to 7­rayed, shield design distinct ........................................................... 19
19 Solenidion knobbed, dorsal annuli with elliptical microtubercles on rear annular mar­ gins ................................................................................................. Tetra salixis sp. nov.
­ Solenidion tapered, dorsal annuli with elliptical microtubercles ahead of rear annular margins ............................................................................. Tetra japonicae Xue & Hong
20 Empodium 4­rayed ................................................................ Tetra pinnatifidae sp. nov.
­ Empodium 6 to 7­rayed............................................................................................... 21
21 Shield design with median line complete .......................... Tetra formosae Xue & Hong
­ Shield design with median line incomplete................................................................. 22
22 Shield design with granules on lines, median line connected with admedian lines at basal 1/3 ............................................................................... Tetra lobatae Xue & Hong
­ Shield design without granules on lines, median and admedian lines separate .............. ....................................................................................... Tetra superbae Huang & Wang
23 Prodorsal shield smooth ........................................................ Tetra louguantais sp. nov.
­ Prodorsal shield with design ....................................................................................... 24
24 Median line on prodorsal shield present ..................................................................... 25
­ Median line on prodorsal shield absent....................................................................... 29
25 Median, admedian and submedian lines complete and separated each other ................. .............................................................................. Tetra phyllostachyis Kuang & Zhang
­ Prodorsal shield design network ................................................................................. 26
26 Setae h1 present ............................................................... Tetra shiheziensis Wang & Lu
­ Setae h1 absent............................................................................................................ 27
27 Prodorsal shield without median line at base .................. Tetra gleditsiae Kuang & Luo
­ Prodorsal shield with median line at base ................................................................... 28
28 Female coverflap with 3 transverse lines at base and 5 to 8 longitudinal ridges, median line connected with admedian lines at basal, central and anterior .................................. ........................................................................................................ Tetra cleomis Kuang
­ Female coverflap with 8 longitudinal ridges, median line connected with admedian lines at basal .................................................................... Tetra lycopersici Xue & Hong
29 Coxal area without prosternal apodeme ..................... Tetra lushuiensis Kuang & Hong
­ Coxal area with prosternal apodeme ........................................................................... 30
30 Empodium 6­rayed, submedian lines present ....... Tetra nanjingensis Lin, Jin & Kuang
­ Empodium 4­rayed, submedian lines absent............................................................... 31
31 Admedian lines connected at base, female coverflap with 12 to 14 longitudinal ridges .......................................................................................................... Tetra populi Kuang
­ Admedian lines separate, female coverflap with 8 to 10 longitudinal ridges ................. ........................................................................................ Tetra heilongjiangensis Kuang
description: Published as part of Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2006, A taxonomic study of the genus Te t r a Keifer (Acari: Eriophyidae: Phyllocoptinae: Anthocoptini) from Shaanxi Province, China with descriptions of nine new species, pp. 1-22 in Zootaxa 1249 on pages 2-4, DOI: 10.5281/zenodo.172971