Adamystidae

Fuangarworn, Marut & Lekprayoon, Chariya, 2010, Adamystis thailandensis sp. nov. (Acari: Prostigmata: Adamystidae), a new species of soil mites from Thailand with a key to world species of Adamystidae, Zootaxa 2649, pp. 61-68 : 67

Key to species of the family Adamystidae (females) of the World

This key is modified from Ueckermann (1989)

1. Idiosoma constricted at level of coxae IV; dorsal shield divided; setae d2 and e2 present; cheliceral bases bulbous; more than 3 cheliceral setae present; fixed cheliceral digits developed; leg femora not subdivided … (subfamily Saxidrominae) .............................................................................................................................................................. 2

- Idiosoma not constricted at level of coxae IV; dorsal shield (if present) entire; setae d2 and e2 absent; cheliceral bases not bulbous; 1 or 2 cheliceral setae present; fixed cheliceral digits reduced; leg femora divided … (subfamily Adamystinae) ............................................................................................................................................................... 7

2. Setae f2 and h3 absent; trichobothria sci closely inserted ........................................................................................... 3

- Setae f2 and h3 present; trichobothria sci widely separated from each other............................................................... 5

3. Idiosoma with 4 dorsal shields (3 transverse folds or striate bands present); 3 pairs of aggenital setae present ........ 4

- Idiosoma with 2 dorsal shields (1 transverse fold or striate band present); 4 pairs of aggenital setae present .............. ............................................................................................................................ Saxidromus delamarei Coineau, 1974

4. Setae e2 located on shield; coxal setation 3-4-4-4 .......................... Saxidromus anahoffmannea Lopez-Campos, 1996

- Setae e2 located on integument; coxal setation 4-4-5-5 ................................................................................................. ................................................................................... Saxidromus caribeus Palacios-Vargas and Prieto-Treuba, 1995

5. Idiosoma with 3 dorsal shields (2 transverse folds or striate bands present); dorsum with circular depressions .......... ...................................................................................................................... Rhinodromus lootsi Coineau et al., 2006

- Idiosoma with 2 dorsal shields (1 transverse fold or striate band present); dorsum without circular depressions...... 6

6. Body length 850, width 470; 18 setae present on cheliceral bases; coxal setation 2-3-3-3 ........................................... .................................................................................................................. Bovidromus roussouwi Coineau et al, 2006

- Body length 735, width 340.............................................................................. Saxidromus knoepffleri Coineau, 1974

7. Lens-like structures present on idiosoma (at least on latero-supracoxal region).......................................................... 8

- Lens-like structures absent on idiosoma ................................................................................................................... 12

8. Latero-supracoxal part of idiosoma with 1 or 2 pairs of lens-like structures ............................................................... 9

- Latero-supracoxal part of idiosoma with at least 8 pairs of lens-like structures ........................................................10

9. One pair of lateral lens-like structures present (at level of setae vi); dorsal shield reduced and smooth; setae e1, f1, h1-2 located on integument. .......................................................................................... Adamystis fonsi Coineau, 1974

- Two pairs of lateral lens-like structures present; dorsal shield extensively developed and reticulated; setae e1, f1, h1- 2 located on shield ............................................................................................ Adamystis buchelis Ueckermann, 1989

10. Lens-like structures absent on posterior-dorsomedial idiosoma (between setal pairs f1 and h1); dorsal shield reticu- late or punctuate ......................................................................................................................................................... 11

- Lens-like structures present on posterior-dorsomedial idiosoma (between setal pairs f1 and h1); dorsal shield densely striate......................................................................................................................... Adamystis thailandensis sp. nov.

11. Dorsal shield punctuate; setae h1-2 located on shield .................................... Adamystis oculeusis Ueckermann, 1989

- Dorsal shield reticulated; setae h1-2 located on integument .................... Adamystis sarae Hunter and Crossley, 1968

12. Dorsal shield present; palpal tarsus longer than femurogenu ................................................................................... 13

- Dorsal shield absent; palpal tarsus shorter than femurogenu ................................ Adamystis nudis Ueckermann, 1989

13. Setae f1 located on dorsal shield............................................................................................................................... 14

- Setae f1 located on integument ..................................................... Adamystis beckyanneae McDaniel and Bolen, 1983

14. Setae h1-2 located on dorsal shield............................................................................................................................. 15

- Setae h1-2 located on integument ...............................................................................................................................17

15. Five pairs of aggenital setae present, all located on large shield............................................................................... 16

- Four pairs of aggenital setae present, most located on integument; 2 small ventral shields present and situated anter- olateral to genital opening ..................................................................... Adamystis monomaculata Ueckermann, 1989

16. Dorsal shield ornamented; coxal shields extending posteriorly beyond level of coxa IV.............................................. ................................................................................................................................ Adamystis coineaui Rafalski, 1982

- Dorsal shield smooth; coxal shields confined to level of coxa IV ............................. Adamystis donnae Cunliffe, 1957

17. Chelicera with 1 seta; dorsal shield without circular depressions (vacuoles) dorsomedially .................................... 18

- Chelicera with 2 setae; dorsal shield with circular depressions (vacuoles) dorsomedially ............................................ ..................................................................................................................... Adamystis trimaculata Ueckermann, 1989

18. Dorsal shield reticulate .............................................................................................................................................. 19

- Dorsal shield striate ................................................................................................... Adamystis sartorum Barilo, 1987

19. Setae h2 and ps1-3 located on reticulate platelets ................................................. Adamystis yvesi Ueckermann, 1989

- Setae h2 and ps1-3 located on integument ........................................................... Adamystis doumengei Coineau, 1974