Favognathus, Luxton, 1973

Paktinat-Saeij, Saeid, Bagheri, Mohammad & Damavandian, Mohammad Reza, 2020, Redescription of Favognathus insularis (Luxton) (Acari: Trombidiformes: Cryptognathidae) from Brazil, with a key to the world species of Favognathus, Persian Journal of Acarology 9 (1), pp. 13-21 : 17-19

Key to the females of known species of Favognathus

1. Dorsum with rosette patterns.......................................................................................................... 2

– Dorsum without rosette patterns ................................................................................................... 17

2. Dorsum with one rosette patterns.................................................................................................... 3

– Dorsum with two rosette patterns ................................................................................................... 4

3. Cluster of cells associated with setae c1, trochanter III with one setae ............................................ ......................................................................................................................... F. distinctus Swift

– Cluster of cells associated with setae d 1, trochanter III with two setae ............................................ .................................................................................................................... F. insularis (Luxton)

4. Dorsum evenly punctuated ........................................................ F. erzrumensis Doğan & Ayyildiz

– Dorsum partly or completely reticulated......................................................................................... 5

5. Dorsum partly reticulated................................................................................................................ 6

– Dorsum completely reticulated ....................................................................................................... 9

6. Genu I with 5 setae; femur I with 5 setae......................................................... F. maritimus (Shiba)

– Genu I with 5(+1 κ) setae; femur I with 4 setae ............................................................................... 7

7. Tarsi III–IV with 8(+1 ω) setae; femur II with 2 setae ......................... F. turcicus Koç & Ayyildiz

– Tarsi III–IV with 9(+1 ω) setae; femur II with 3 setae .................................................................... 8

8. Setal formula of tarsi 16-14-10-10 ................................................ F.amygdalus Doğan & Ayyildiz

– Setal formula of tarsi 17-14-10-10 ........................................ F. pongolensis Meyer & Ueckermann

9. Anterior margin of hood denticulated ........................................................................................... 10

– Anterior margin of hood smooth ................................................................................................... 13

10. Genu II with 4 setae; femur I with 3 setae ......................................... F. observabilis (Kuznetsov)

– Genu II with 4(+1 κ) setae; femur I with 4 setae ......................................................................... 11

11. Intercoxal area smooth ................................................................ F. esfahaniensis Khanjani et al.

– Intercoxal area striated ............................................................................................................... 12

12. All reticulation cells of dorsal shield with pores and short striae; rosette patterns consist of 6–8 cells ...................................................................... F. hyrcanensis Shirinbeik Mohajer & Bagheri

– Medial reticulation cells of dorsal shield with pores; rosette patterns consist of 2–5 cells ........... .......................................................................................................... F. guilanicus Khanjani et al.

13. Genu II without famulus κ.......................................................................................................... 14

– Genu II with famulus κ.............................................................................................................. 15

14. Intercoxal area with nonporous areas rest of venter covered with evenly distributed pores; prosternal apron with 16 foveolae............................................ F. texasensis (McDaniel & Bolen)

– Intercoxal area finely striated with few punctations, reticulations posterior to coxae IV; prosternal apron with 12 foveolae ........................................................................ F. luxtoni Koç & Ayyildiz

15. Setal formula of tarsi 16-14-12-8............................................... F. pictus (Summers & Chaudhri)

– Setal formula of tarsi not as above.............................................................................................. 16

16. Setal formula of tarsi 16-12-10-10................................................................... F. bafranus Doğan

– Setal formula of tarsi 17-14-10-10.......................................................... F. distortus (Kuznetzov)

17. Dorsum evenly punctuated ........................................................................................................ 18

– Dorsum partly or completely reticulated .................................................................................... 27

18. Anterior margin of hood wavelike....................................... F. dakotaensis (Mc Daniel & Bolen)

– Anterior margin of hood denticulated or smooth........................................................................ 19

19. Anterior margin of hood denticulated......................................................................................... 20

– Anterior margin of hood smooth................................................................................................. 23

20. Ventral shield partly reticulated...................................................................... F. izmirensis Akyol

– Ventral shield punctuated or striated .......................................................................................... 21

21. Prosternal apron with 10 dimples ............................................................ F. denticulatus (Luxton)

– Prosternal apron with more than 10 dimples .............................................................................. 22

22. Prosternal apron with 16–18 dimples ................................. F. ochraceus (Summers & Chaudhri)

– Prosternal apron with 25 dimples ................................................................... F. magnus (Luxton)

23. Femur I with 3 setae.................................................................................... F. leopardus (Luxton)

– Femur I with 4 setae.................................................................................................................... 24

24. Tarsi I with 13(+2 ω) setae .................................................................... F. kamili Donel & Doğan

– Tarsi I with 15(+2 ω) setae .......................................................................................................... 25

25. Tarsi II with 11(+2 ω) setae ............................ F. kazemii Mohammad Doustaresharaf & Bagheri

– Tarsi II with 12(+2 ω) setae......................................................................................................... 26

26. Prosternal apron with 14–18 dimples ...................................................... F. orbiculatus (Livshitz)

– Prosternal apron with 17–19 dimples .................................................................... F. cypselus Fan

27. Dorsum completely reticulated ................................................................................................... 28

– Dorsum partly reticulated ........................................................................................................... 30

28. Addorsal setae tc on tarsus II dissimilar ....................................................... F. rugosus (Livshitz)

– Addorsal setae tc on tarsus II similar .......................................................................................... 29

29. Anterior margin of hood denticulated; dorsal shield with faint reticulations and striate................ ..................................................................................................... F. favus (Summers & Chaudhri)

– Anterior margin of hood smooth; dorsal shield with strong reticulations and striate..................... ............................................................................................................................ F. gersoni Luxton

30. Anterior margin of hood denticulated......................................................................................... 31

– Anterior margin of hood smooth................................................................................................. 34

31. Genu II with 4(+1 κ) setae ..................................................................... F. alvandii Khanjani et al.

– Genu II with 5(+1 κ) setae ........................................................................................................... 32

32. Setal formula of tarsi 16-13-10-10............................................................................. F. goffi Swift

– Setal formula of tarsi not as above.............................................................................................. 33

33. Setal formula of tarsi 15-14-10-9........................................ F. dama (Chaudhri, Akbar & Rasool)

– Setal formula of tarsi 17-14-10-10........................................................ F. farshchiani Jafari et al.

34. Hood wider than long ...................................................................... F. barrasi (Smiley & Moser)

– Hood longer than wide................................................................................................................ 35

35. Trochanter IV without setae ............................................................................... F. variabilis Swif

– Trochanter IV with one setae ...................................................................................................... 36

36. Genu II without famulus κ.......................................................................................................... 37

– Genu II with famulus κ.............................................................................................................. 38

37. Tarsi II with 11(+2 ω) setae ................................................... F. latibarrus Meyer & Ueckermann

– Tarsi II with 12(+2 ω) setae........................................................ F. cucurbitellus (Meyer & Ryke)

38. Femur I with 3 setae....................................................................................... F. cucurbita Berlese

– Femur I with 4 setae.................................................................................................................... 39

39. Sternocoxal area with a pair of angular condyles ........................................... F. cordylus Luxton

– Sternocoxal area without angular condyles ................................................................................ 40

40. Setal formula of tarsi 17-14-10-10......................................... F. mirazii Khanjani & Ueckermann

– Setal formula of tarsi not as above.............................................................................................. 41

41. Genu IV with 2 setae; prosternal apron with 20 dimples................................................................ ............................................................................................................ F. naghii Hassanzadeh et al.

– Genu IV with 3 setae; prosternal apron with 14 dimples................................................................ ......................................................................................................... F. acaciae Doğan & Ayyildiz