Aculus Keifer

Xue, Xiao-Feng, Song, Zi-Wei & Hong, Xiao-Yue, 2008, Eight new species of the genus Aculus Keifer (Acari: Eriophyidae) from China, Zootaxa 1721, pp. 35-52 : 36-37

Key to the species of Aculus Keifer from China

1 Dorsal annuli smooth...................................................................................................................................2

- Dorsal annuli with microtubercles.............................................................................................................15

2 Ventral annuli smooth............................................................................ Aculus shaoxingensis Kuang, 1998

- Ventral annuli with microtubercles..............................................................................................................3

3 Coxal plates smooth.....................................................................................................................................4

- Coxal plates with granules or short lines .....................................................................................................8

4 Prodorsal shield smooth................................................................... Aculus huangzhongensis Kuang, 2000

- Prodorsal shield ornamented........................................................................................................................5

5 Setae h1 absent................................................................................. Aculus ablopurpurascus Huang, 2001

- Setae h1 present ...........................................................................................................................................6

6 Median line absent........................................................................ Aculus mansoni Amrine & Stasny, 1994

- Median line present......................................................................................................................................7

7 Submedian lines present.................................................................................. Aculus toxicodendri sp. nov.

- Submedian lines absent................................................................................. Aculus cayratiae Kuang, 1987

8 Prodorsal shield smooth.................................................................... Aculus gladitsiae Kuang & Luo, 2005

- Prodorsal shield ornamented........................................................................................................................9

9 Coxal plates with granules.........................................................................................................................10

- Coxal plates with short lines......................................................................................................................12

10 Median and admedian lines connected................................................................... Aculus rumexis sp. nov.

- Median and admedian lines separate .........................................................................................................11

11 Submedian lines present......................................................................................... Aculus cuihuae sp. nov.

- Submedian lines absent........................................................................ Aculus meliae Kuang & Zhuo, 1989

12 Median line absent.......................................................................... Aculus guilinensis Kuang & Luo, 2005

- Median line present....................................................................................................................................13

13 Median and admedian lines connected ......................................................................................................14

- Median and admedian lines separate............................................................. Aculus pistaciae Kuang, 1998

14 Prodorsal shield with numerous granules laterally, empodium 7-rayed...... Aculus bambusae Kuang, 1991

- Prodorsal shield without granules, empodium 5-rayed....... Aculus broussonetiae Lin, Jin & Kuang, 1997

15 Coxal plates smooth...................................................................................................................................16

- Coxal plates with granules or short lines ...................................................................................................19

16 Setae h1 absent ..........................................................................................................................................17

- Setae h1 present .........................................................................................................................................18

17 Dorsal annuli with round microtubercles, ventral annuli with spiny microtubercles.......................................................................................................................................... Aculus longanensis Wei & Kuang, 1997

- Dorsal annuli with filament-like microtubercles, ventral annuli with round microtubercles.......................................................................................................................... Aculus sargentodoxae Wei & Kuang, 1997

18 Median and admedian lines absent............................................................................. Aculus asteri sp. nov.

- Median and admedian lines present........................................ Aculus fockeui (Nalepa & Trouessart), 1891

19 Setae h1 absent........................................................................ Aculus macrocarpae Huang & Wang, 2004

- Setae h1 present .........................................................................................................................................20

20 Median line absent.....................................................................................................................................21

- Median line present....................................................................................................................................24

21 Prodorsal shield with lateral lobes........................................................... Aculus populi Xue & Hong, 2005

- Prodorsal shield without lateral lobes........................................................................................................22

22 Femur and genu with granules............................................................................... Aculus amurens sp. nov.

- Femur and genu smooth.............................................................................................................................23

23 Submedian lines presen.............................................................................. Aculus daibuensis Huang, 2001

- Submedian lines absent........................................................................................... Aculus jingbois sp. nov.

24 Median and admedian lines separate .........................................................................................................25

- Median and admedian lines connected ......................................................................................................28

25 Submedian lines present ............................................................................................................................26

- Submedian lines absent..............................................................................................................................27

26 Prodorsal shield lobe with spines, solenidion knobbed................. Aculus parafockeui Liu & Kuang, 1998

- Prodorsal shield lobe without spines, solenidion not knobbed.......... Aculus huixiansis Xue & Hong, 2005

27 Prodorsal shield with granules, empodium 5-rayed.............................................. Aculus eupteleae sp. nov.

- Prodorsal shield without granules, empodium 7-rayed................... Aculus coggygriae Xue & Hong, 2005

28 Female genital coverflap smooth......................................................... Aculus persicae Xue & Hong, 2005

- Female genital coverflap with longitudinal ridges ....................................................................................29

29 Empodium 5- to 6-rayed............................................................................................................................30

- Empodium 4-rayed ....................................................................................................................................31

30 Median line complete, dorsal annuli with filament-like microtubercles laterally ....................................................................................................................................................... Aculus shanghaiensis Kuang, 1997

- Median line incomplete, dorsal annuli with elliptical microtubercles................ Aculus changbais sp. nov.

31 Ventral annuli with spiny microtubercles ..................................................................................................32

- Ventral annuli with round microtubercles..................................................................................................34

32 Dorsal annuli with spiny microtubercles.............................................. Aculus niphlocladae ( Keifer), 1966

- Dorsal annuli with round microtubercles...................................................................................................33

33 Prodorsal shield lobe with spines anteriorly.............................. Aculus leonuri Kuang, Luo & Wang, 2005

- Prodorsal shield lobe without spines................................................. Aculus altissimae Xue & Hong, 2005

34 Prodorsal shield with granules laterally............................................. Aculus schlechtendali ( Nalepa), 1890

- Prodorsal shield without granules..............................................................................................................35

35 Admedian and submedian lines separate............................................... Aculus salicis Kuang & Luo, 1997

- Admedian and submedian lines connected................................................................................................36

36 Coxal plates with short lines.......................................................................... Aculus ligustri ( Keifer), 1938

- Coxal plates with granules.........................................................................................................................37

37 Shield design with a distinctive network................................................ Aculus tetanothrix ( Nalepa), 1889

- Median and admedian lines connected at basal 1/3, admedian and submedian lines connected by a trans- verse line at basal 2/3......................................................................... Aculus amygdale Xue & Hong, 2005