Tetra
Creators: name: Xue, Xiao-Feng
name: Hong, Xiao-Yue
Publisher: name: Zenodo
Year: 2005
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 ......................................................................... 8
2 Empodium 7­rayed ....................................................................... Tetra yushania Huang
­ Empodium 4­rayed........................................................................................................ 3
3 Setae h1 absent .......................................................................... Tetra intermedia Huang
­ Setae h1 present............................................................................................................. 4
4 Coxal sternal line absent ......................................................... Tetra similisforca Huang
­ Coxal sternal line present .............................................................................................. 5
5 Shield design without median line .................................................... Tetra toona Huang
­ Shield design with median line ..................................................................................... 6
6 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......................................................................................................... 7
7 Femur with two longitudinal lines, female genital coverflap with 12 to 14 longitudinal ridges, shield design network ...................................... Tetra polygoni Wei, Chen & Xie
­ Femur smooth, female genital coverflap with 10 to 12 longitudinal ridges, shield design only with median and admedian lines connected at basal 1/3 ............................. ................................................................................. Tetra clerodendri Wei, Chen & Xie
8 Coxal area with granules............................................................................................... 9
­ Coxal area with short lines .......................................................................................... 10
9 Female genital coverflap smooth, empodium 7­rayed, dorsal annuli with round micro­ tubercles ...................................................................... Tetra dalbergiae Kuang & Zhuo
­ Female genital coverflap with 10 longitudinal ridges, empodium 4­rayed, dorsal annuli with spiny microtubercles .............................................. Tetra suspensae n. sp.
10 Dorsal annuli with microtubercles .............................................................................. 11
­ Darsal annuli smooth................................................................................................... 15
11 Empodium 2­rayed ...................................................................... Tetra concava (Keifer)
­ Empodium 6 or 7­rayed............................................................................................... 12
12 Dorsal annuli with elliptical microtubercles ................................ Tetra japonicae n. sp.
­ Dorsal annuli with spiny microtubercles..................................................................... 13
13 Shield design with median line complete.................................... Tetra formosae n. sp.
­ Shield design with median line incomplete................................................................. 14
14 Shield design with granules on lines, median line connected with admedian lines at basal 1/3 .......................................................................................... Tetra lobatae n. sp.
­ Shield design without granules on lines, median and admedian lines separate .............. ....................................................................................... Tetra superbae Huang & Wang
15 Median line on prodorsal shield present ..................................................................... 16
­ Median line on prodorsal shield absent ...................................................................... 19
description: Published as part of Xue, Xiao-Feng & Hong, Xiao-Yue, 2005, Five new species of the genus Te t r a Keifer (Acari: Eriophyoidea) from China, pp. 37-48 in Zootaxa 1067 on page 38, DOI: 10.5281/zenodo.170236