Tetra
Creators: name: Xue, Xiao-Feng
name: Song, Zi-Wei
name: Hong, Xiao-Yue
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Prostigmata
Eriophyidae
Tetra

description: Key to the species of Tetra from China
1 Coxal area smooth ....................................................................................................................................... 2
- Coxal area with short lines or granules...................................................................................................... 13
2 Setae h1 absent .............................................................................................. Tetra intermedia Huang, 2001
- Setae h1 present ........................................................................................................................................... 3
3 Empodium 7-rayed ........................................................................................... Tetra yushania Huang, 2001
- Empodium 4-rayed ...................................................................................................................................... 4
4 Coxal area without prosternal apodeme ........................................................ Tetra similisforca Huang, 2001
- Coxal area with 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 Xue, Song & Hong, 2006
- Admedian lines on prodorsal shield connected ........................................................................................... 7
7 Admedian lines on prodorsal shield connected at basal 2/3 .................................. Tetra toona Huang, 2001
- Admedian lines on prodorsal shield connected at base ................. Tetra sorbusis Xue, Song & Hong, 2006
8 Shield design with median line separate from admedian lines .......... Tetra lucidi Xue, Song & Hong, 2006
- 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 longitudinal ridges ...... ..................................................................................................... Tetra guiyangensis Kuang & Hong, 1989
- Shield design with median line 1/3 at base, female genital coverflap with more than 10 longitudinal ridges ................................................................................................................................................................... 10
10 Femur I and II with longitudinal lines ............................................. Tetra polygoni Wei, Chen & Xie, 2003
- Femur smooth ............................................................................................................................................ 11
11 Dorsal annuli with spiny microtubercles laterally ......................... Tetra smilaxis Xue, Song & Hong, 2006
- Dorsal annuli smooth................................................................................................................................. 12
12 Admedian and submedian lines separate ..................................... Tetra clerodendri Wei, Chen & Xie, 2003
- Admedian and submedian lines connected .......................................... Tetra sinicae Li, Wei & Wang, 2006
13 Dorsal annuli with microtubercles............................................................................................................. 14
- Dorsal annuli smooth................................................................................................................................. 31
14 Empodium 2-rayed ..................................................... Tetra concava (Keifer), 1939; Hong & Zhang, 1996
- Empodium more than 2-rayed ................................................................................................................... 15
15 Dorsal annuli with elliptical microtubercles.............................................................................................. 16
- Dorsal annuli with spiny or short-line microtubercles............................................................................... 24
16 Female genital coverflap smooth ...................................................... Tetra dalbergiae Kuang & Zhuo, 1989
- Female genital coverflap with longitudinal ridges .................................................................................... 17
17 Empodium 6 to 7-rayed ............................................................................................................................. 18
- Empodium 4-rayed .................................................................................................................................... 19
18 Solenidion knobbed, dorsal annuli with elliptical microtubercles on rear annular margins.......................... .......................................................................................................... Tetra salixis Xue, Song & Hong, 2006
- Solenidion tapered, dorsal annuli with elliptical microtubercles ahead of rear annular margins.................. ............................................................................................................... Tetra japonicae Xue & Hong, 2005
19 Prodorsal shield with lateral lobes............................................................................................................. 20
- Prodorsal shield without lateral lobes........................................................................................................ 21
20 Coxal area with granules, solenidion unknobbed ...................... Tetra ningshanis Xue, Song & Hong, 2006
- Coxal area with granules and short lines, solenidion knobbed...................................................................... ....................................................................... Tetra lobulifera (Keifer), 1961; Hong, Wang & Zhang, 2006
21 Median, admedian and submedian lines robust, dorsal annuli with faint microtubercles............................. ................................................................................................................................. Tetra coriariae sp. nov.
- Median, admedian and submedian lines normal, dorsal annuli with distinct microtubercles ................... 22
22 Frontal lobe acuminate ..................................................................................... Tetra diamantiacae sp. nov.
- Frontal lobe broad...................................................................................................................................... 23
23 Prodorsal shield design indistinct, coxal area with short lines ...... Tetra cuihuae Xue, Song & Hong, 2006
- Prodorsal shield design distinct, coxal area with short lines and granules ............... Tetra zhouzhis sp. nov.
24 Empodium 4-rayed .................................................................................................................................... 25
- Empodium 6 to 7-rayed ............................................................................................................................. 27
25 Admedian and submedian lines connected, coxal area with granules....................................................... 26
- Admedian and submedian lines separate, coxal area with short lines........................................................... ................................................................................................. Tetra pinnatifidae Xue, Song & Hong, 2006
26 Median and admedian lines separate ...................................................................... Tetra actinidiae sp. nov.
- Median and admedian lines connected ................................................. Tetra suspensae Xue & Hong, 2005
27 Median line present.................................................................................................................................... 28
- Median line absent ................................................................................................... Tetra hupeanae sp. nov.
28 Shield design with complete median line .............................................. Tetra formosae Xue & Hong, 2005
- Shield design with incomplete median line ............................................................................................... 29
29 Median line connected with admedian lines at basal 1/3........................................................................... 30
- Median and admedian lines separate ................................................. Tetra superbae Huang & Wang, 2004
30 Admedian and submedian lines separate .................................................................. Tetra sinicusis sp. nov.
- Admedian and submedian lines connected ............................................... Tetra lobatae Xue & Hong, 2005
31 Prodorsal shield smooth ........................................................... Tetra louguantais Xue, Song & Hong, 2006
- Prodorsal shield with design...................................................................................................................... 32
32 Median line on prodorsal shield present .................................................................................................... 33
- Median line on prodorsal shield absent ..................................................................................................... 37
33 Median, admedian and submedian lines complete and separated from each other ....................................... .................................................................................................. Tetra phyllostachyis Kuang & Zhang, 1999
- Prodorsal shield design network................................................................................................................ 34
34 Setae h1 present ................................................................................... Tetra shiheziensis Wang & Lu, 2004
- Setae h1 absent .......................................................................................................................................... 35
35 Prodorsal shield without median line at base ... Tetra gleditsiae Kuang & Luo; Kuang, Luo & Wang, 2005
- Prodorsal shield with median line at base.................................................................................................. 36
36 Female genital coverflap with 3 transverse lines each side at base and 5 to 8 longitudinal ridges, median line connected with admedian lines at base, central and anterior ....................... Tetra cleomis Kuang, 1991
- Female genital coverflap with 8 longitudinal ridges, median line connected with admedian lines at base .. ............................................................................................................. Tetra lycopersici Xue & Hong, 2005
37 Coxal area without prosternal apodeme ........................................... Tetra lushuiensis Kuang & Hong, 1989
- Coxal area with prosternal apodeme.......................................................................................................... 38
38 Empodium 6-rayed, submedian lines present ............................ Tetra nanjingensis Lin, Jin & Kuang, 1997
- Empodium 4-rayed, submedian lines absent ............................................................................................. 39
39 Admedian lines connected at base, female genital coverflap with 12 to 14 longitudinal ridges................... .............................................................................................................................. Tetra populi Kuang, 1999
- Admedian lines separate, female genital coverflap with 8 to 10 longitudinal ridges.................................... ............................................................................................................ Tetra heilongjiangensis Kuang, 1995
description: Published as part of Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2007, Six new species of Te t r a Keifer (Acari: Eriophyidae: Phyllocoptinae) from China, pp. 1-16 in Zootaxa 1614 on pages 2-3, DOI: 10.5281/zenodo.179043