Phytoseiidae

Guanilo, Alberto Daniel, Moraes, Gilberto José De, Toledo, Silvana & Knapp, Markus, 2008, Phytoseiid mites (Acari: Phytoseiidae) from Argentina, with description of a new species, Zootaxa 1884, pp. 1-35 : 26-29

Key to the Phytoseiidae reported from Argentina

A key is subsequently provided for the species reported to date from Argentina. A. hexagonus , A. perlongisetus and E. finlandicus are not included because of the uncertainties about the identity of the first 2 species and because of the strong evidence that the report of the last species could correspond to a misidentification, as discussed previously in this paper.

1. Either or both of setae z3 and s6 present.....................................................................................................2

- Seta z3 and s6 absent ............................................................................................. Amblyseiinae Muma…3

2. Seta Z1, S2, S4 and S5 absent… Phytoseiinae Berlese… Phytoseius Ribaga ................................................ ................................................................................................................... Phytoseius guianensis De Leon

- At least one of setae Z1, S2, S4 or S5 present........................................... Typhlodrominae Wainstein…41

3. Sternal shield with median posterior projection; some forward “migration” of pre-anal setae JV2 and ZV2 ................................................................................................................... Euseiini Chant & McMurtry…4

- Sternal shield without posterior projection; without forward “migration” of pre-anal setae JV2 and ZV2.....................................................................................................................................................................10

4. Chelicera of normal size and shape, with prominent teeth evenly distributed along inner margin of fixed digit; peritreme usually extending to level of seta j1..................................................................................... ..............................................subtribe Typhlodromalina Chant & McMurtry… Typhlodromalus Muma …5

- Chelicera small, with a group of small teeth clustered at the distal end of the fixed digit; peritreme usually not extending beyond seta j3 (Except by Euseius inouei )...subtribe Euseiina Chant & McMurtry... Euseius Wainstein. ....................................................................................................................................................6

5. Seta z4 ca. twice as long as seta z2............................................................ Typhlodromalus aripo De Leon

- Seta z4 at most 1.4 times as long as seta z2....................................... Typhlodromalus peregrinus (Muma)

6. Dorsal shield smooth...................................................................................................................................7

- Dorsal shield reticulate................................................................................................................................9

7. Seta z4 ca. half as long as distance between its base and the base of seta z2.............. Euseius ho De Leon

- Seta z4 longer than half the distance between its base and the base of seta z2...........................................8

8. Macroseta on genu IV sharp-tipped......................................... Euseius fructicolus (Gonzalez & Schuster)

- Macroseta on genu IV knobbed......................................................................... Euseius concordis (Chant)

9. Macrosetae on leg IV knobbed; peritreme extending to level between setae j1 and j3................................. ................................................................................................................ Euseius inouei (Ehara & Moraes)

- Macrosetae on leg IV sharp-tipped; peritreme extending to level between setae j3 and z2 ......................... ......................................................................................................... Euseius citrifolius Denmark & Muma

10. Seta S4 absent............................................................................................................................................11

- Seta S4 present...........................................................................................................................................14

11. Setae j6 less than half as long as distance between their bases; with 3 pairs of pre-anal setae; some dorso- lateral setae thickened, set on tubercles......................................................................................................... Kampimodromini Kolodochka …subtribe Paraphytoseiina Chant & McMurtry… Paraphytoseius Swirski & Shechter ... Paraphytoseius orientalis (Narayanan et al.)

- Setae j6 2–3 times longer than distance between their bases; female ventri-anal shield with 0–1 pair of pre-anal setae; dorsolateral setae less thickened, not set on tubercles........................................................... ....................................................................... Phytoseiulini Chant & McMurtry... Phytoseiulus Evans …12

12. Without pre-anal setae; st 3 off sternal shield; j5 absent ................................ Phytoseiulus longipes Evans

- With a pair of pre-anal setae; st 3 on sternal shield; j5 present.................................................................13

13. Dorsocentral setae j3, j4 and j5 smooth and shorter than distance between their bases and the bases of the respective following setae in the series ................................. Phytoseiulus fragariae Denmark & Schicha

- Dorsocentral setae j3, j4 and j5 serrate and longer than distance between their bases and the bases of the respective following setae in the series ................................................... Phytoseiulus macropilis (Banks)

14 Seta s4 more than 3 times as long as seta Z1; setae s4, Z5 and usually Z4 markedly longer than other dor- sal setae; seta J2 present/ or absent…Amblyseiini Muma.........................................................................15

- Seta s4 less than 3 times as long as seta Z1; setae s4, Z4 and usually Z5 not greatly longer than other dor- sal setae; seta J2 present…Neoseiulini Chant & McMurtry......................................................................34

15. All shields lightly sclerotized; ratio length/width of sternal shield ca. 1.0; ratio length/width of ventri-anal shield usually higher than 1.5; seta J2 present; genital shield approximately as wide as ventri-anal shield; sternal and genital shield usually smooth ................................................subtribe Amblyseiina Muma…16

- All shields strongly sclerotized; ratio length/width of sternal and ventri-anal shields usually lower than 1.0; seta J2 present or absent; genital shield usually narrower than ventri-anal shield; sternal and genital shields smooth or reticulate.......................................................................................................................25

16. Major duct of spermatheca thick-walled, fusiform, vacuolated at junction with atrium … Graminaseius Chant & McMurtry ................................................................... Graminaseius sobrinulus (Athias-Henriot)

- Major duct not vacuolated at junction with atrium....................................................................................17

17. Chelicera unusually large, robust, with fixed digit much longer than movable digit.................................... ............................................................................................................. Chelaseius Muma & Denmark …18

- Chelicera of normal size, fixed digit not much longer than movable digit .......... Amblyseius Berlese …19

18. Seta J5 plumose .............................................................................. Chelaseius austrellus (Athias-Henriot)

- Seta J5 smooth ........................................................................... Chelaseius schusterellus (Athias-Henriot)

19. Female ventri-anal shield vase-shaped, wider at level of anus than at level of setae ZV2............................ .................................................................................................................... Amblyseius herbicolus (Chant)

- Female ventri-anal shield not vase-shaped, not wider at level of anus than at level of setae ZV2...........20

20. Spermatheca with calyx swollen basally, bladder-like, then narrowing and finally flaring distally ............. ....................................................................................................... Amblyseius deleonellus Athias-Henriot

- Spermatheca with calyx cup-shaped, saccular or tubular..........................................................................21

21. Spermatheca with calyx tubular...................................................................... Amblyseius aerialis (Muma)

- Spermatheca with calyx cup-shaped or saccular.......................................................................................22

22. Spermatheca with calyx saccular...............................................................................................................23

- Spermatheca with calyx cup-shaped..........................................................................................................24

23. Seta j3 much longer than seta j1 ....................................................... Amblyseius franzellus Athias-Henriot

- Seta j3 much shorter than seta j1 ............................................... Amblyseius pritchardellus Athias-Henriot

24. Seta Z5 ca. 22 times as long as seta S5...................................................... Amblyseius chiapensis De Leon

- Seta Z5 ca. 28 times as long as seta S5......................................... Amblyseius neochiapensis Lofego et al.

25. Seta J2 present ................................................................... subtribe Arrenoseiina Chant & McMurtry…26

- Seta J2 absent........................ subtribe Proprioseiopsina Chant & McMurtry... Proprioseiopsis Muma …27

26. Setae j3 and s4 longer than distance between their bases and the bases of setae j1 and Z1, respectively .... ..................................................................................................................... Arrenoseius grandis (Berlese)

- Setae j3 and s4 shorter than distance between their bases and the bases of setae j1 and Z1, respectively.... ............................................................................................................. Arrenoseius tucumanensis (Sheals)

27. Calyx of spermatheca short, cup-shaped...................................................................................................28

- Calyx of spermatheca longer, not cup-shaped...........................................................................................29

28. Seta j3 shorter than seta j1; setae z2 and z4 minute................... Proprioseiopsis edbakeri (Athias-Henriot)

- Seta j3 ca. twice as long as seta j1; seta z2 and z4 longer (more than 25 µm).............................................. ............................................................................................ Proprioseiopsis gonzalezi Chant & McMurtry

29. Spermatheca with calyx elongate, tubular; seta s4 serrate..... Proprioseiopsis mumaellus (Athias-Henriot)

- Spermatheca with calyx bell-shaped or saccular.......................................................................................30

30. Seta S2 ca. 5 times as long as seta Z1..................................................... Proprioseiopsis campanulus Karg

- Seta S2 at most 1.3 times as long as seta Z1.............................................................................................31

31. Basal half of calyx of spermatheca granulate .......................... Proprioseiopsis donchanti (Athias-Henriot)

- Calyx of spermatheca totally smooth........................................................................................................32

32. Seta Z4 shorter than seta Z5 ................................................................ Proprioseiopsis messor (Wainstein)

- Seta Z4 longer than seta Z5.......................................................................................................................33

33. Seta j3 longer than distance between its base and the base of seta z2..... Proprioseiopsis ovatus ( Garman)

- Seta j3 shorter than distance between its base and the base of seta z2 Proprioseiopsis neotropicus (Ehara)

34. Seta J1 and J4 present; seta R1 absent.................... Evansoseius Sheals … Evansoseius macfarlanei Sheals

- Seta J1 and J4 absent; seta R1 present.................................................................... Neoseiulus Hughes …35

35. Most dorsal setae distinctly serrate...........................................................................................................36

- Most dorsal setae smooth...........................................................................................................................37

36. With macrosetae on genu, tibia and tarsus of leg IV; ventri-anal shield smooth; seta Z4 ca. as long as dis- tance between its base and the base of seta Z5................................................ Neoseiulus tunus ( De Leon)

- Without macrosetae on legs; ventri-anal shield reticulate; seta Z4 shorter than distance between its base and the base of seta Z5..................................................... Neoseiulus argentinus Guanilo & Moraes n. sp.

37. Dorsal shield striate...................................................................................................................................38

- Dorsal shield smooth.................................................................................................................................39

38. Most dorsal shield setae longer than distance between their bases and the bases of the respective seta immediately behind ......................................................................... Neoseiulus idaeus Denmark & Muma

- Most dorsal shield setae shorter than distance between their bases and the bases of the respective seta immediately behind ............................................................................ Neoseiulus californicus (McGregor)

39. Pore gd2 absent................................................................................................. Neoseiulus barkeri Hughes

- Pore gd2 present (in the middle of a triangle formed by bases of setae j4, j5 and z4)..............................40

40. Seta z2 ca. half as long as seta Z1.......................................................... Neoseiulus chascomensis (Sheals)

- Seta z2 ca. as long as seta Z1................................................... Neoseiulus transversus Denmark & Muma

41. Seta z3 absent ................................................................................................................................................ .. Galendromimini Chant & McMurtry… Silvaseius Chant & McMurtry … Silvaseius barretoae (Yoshida- Shaul & Chant)

- Seta z3 present...........................................................................................................................................42

42. Seta z6 present .............Paraseiulini Wainstein… Paraseiulus Muma ... Paraseiulus talbii (Athias-Henriot)

- Seta z6 absent ................................................................................... Metaseiulini Chant & McMurtry…43

43. Seta R1 absent; seta S2 present ..................................................................................................................... ............................................... Galendromus Muma … Galendromus (Galendromus) annectens ( De Leon)

- Seta R1 present; seta S2 absent ..................................................................................................................... ............................... Metaseiulus Muma ... Metaseiulus (Metaseiulus) camelliae (Chant & Yoshida-Shaul)