Fedrizzia

Seeman, Owen D., 2007, Revision of the Fedrizziidae (Acari: Mesostigmata: Fedrizzioidea), Zootaxa 1480, pp. 1-55 : 8-9

Key to adult female Fedrizzia

Idiosomal lengths and countries of origin are given for each species and are given to help eliminate some, but not all, species in couplets.

1. Femur III and IV with large lamellae, seta pv1 thickened. Pedofossae III present. Exopodal patterning between CxII–III striped. Idiosoma 1120 –1280 long. Papua New Guinea.. Fedrizzia scutata (Womersley)

- Femur III and IV without large lamellae, sometimes small distal lamella present ( Fig. 16 ), seta pv1 not significantly thickened. Pedofossae III absent. Exopodal patterning between CxII–III spotted................. 2

2. Femur III and IV with small distal lamellae ( Fig. 16 b)............................................................................... 3

- Femur III and IV without lamellae ( Fig. 16 a) ............................................................................................. 4

3. Posterior of sternogynial shield not flanked by a cluster of pores. Ventral shield with small flange that overlaps the posterior of sternogynial shield. Idiosoma 1140 –1160 long. Thailand. ( Figs 33–34 )............... ............................................................................................................................ Fedrizzia gilloglyi sp. nov.

- Posterior of sternogynial shield flanked by a cluster of 6–9 pores. Ventral shield does not overlap sternogynial shield. Idiosoma 745–780 long. Australia: Northern New South Wales, Southeast Queensland ......... ................................................................................................................... Fedrizzia oudemansi Womersley

4. Ventral shield entirely lineate-reticulate ( Fig. 17 b) ..................................................................................... 5

- Ventral shield with mesh-like pattern laterally and sometimes postero-medially ( Fig. 17 a) ...................... 7

5. Process of palp trochanter without blunt process ( Fig. 30 ). Sternogynial shield 173–176 long. Idiosoma 1000 –1040. Australia: Southeast Queensland. ( Figs 35–36 ) ........................... Fedrizzia parvipilus sp. nov.

- Process of palp trochanter with blunt process ( Figs 27–29 ). Sternogynial shield <150 long..................... 6

6. Setae st2 5–8 long. Sternogynial shield smooth. Idiosoma 800–850. Papua New Guinea........................... .......................................................................................................................... Fedrizzia carabi Womersley

- Setae st2 25 long. Sternogynial shield lineate-reticulate. Idiosoma 850–860. Indonesia: Buru.................... ....................................................................................................................... Fedrizzia strandi (Oudemans)

7. Smooth area surrounding sternogynial shield delineated by a suture, the area extensive, extending well past level of CxIII–IV ( Fig. 3 a). Idiosoma 1020 –1070 long. Australia: Southeast Queensland. ( Figs 22– 26 ) ................................................................................................................. Fedrizzia abradoalves sp. nov.

- Smooth area surrounding sternogynial shield either narrow, the area not extending past level of CxIII–IV, or not extensive and not delineated by a suture........................................................................................... 8

8. Ventrianal shield with mesh-like reticulation. Idiosoma 900. Australia: Queensland................................... ....................................................................................................................... Fedrizzia grossipes Canestrini

- Ventrianal shield lineate-reticulate or with weak mesh-like reticulation anteriorly; if with mesh-like reticulation, then idiosoma > 1100...................................................................................................................... 9

9. Lateral setae of ventrianal shield 20–30 long; sternogynial shield with strong honeycomb-like reticulation ( Fig. 18 a). Idiosoma 1160 –1260 long. Australia: Southeast Queensland, Northern New South Wales....... ....................................................................................................................... Fedrizzia sellnicki Womersley

- Lateral setae of ventrianal shield 10–20 long; sternogynial shield reticulated, but not in a strong honeycomb pattern ( Fig. 18 b). Idiosoma <1100 long ........................................................................................ 10

10. Setae st3> 20, st4> 10. Ventrianal shield 127 long, 260 wide. Idiosoma 930 long. Australia: Northeast Queensland .................................................................................................... Fedrizzia derricki Womersley

- Setae st3 <15, st4 <10. Ventrianal shield 139 long, 406 wide. Idiosoma 930–1000 long. Australia: Southeast, Northeast Queensland .................................................................... Fedrizzia bornemisszai Womersley

Figures

FIGURE 3. (A) Intercoxal region of female Fedrizzia abradoalves. The growth between Cx II – III is the fungus Rickia berlesiana; either spores or root-cell remnants of R. berlesiana are visible on the sternal shield. (B) Intercoxal region of female Neofedrizzia tragardhi. Abbreviations: st 1 - 4 = sternal setae 1 – 4; Ju = jugular shield; St = sternal shield; Sg = sternogynial shield. Scale bar = 100.

FIGURE 16. Femur IV of (A) Fedrizzia parvipilus and (B) Fedrizzia oudemansi. Arrow points to lamella. Scale bar = 50.

FIGURE 17. Ventral shield ornamentation of (A) Fedrizzia abradoalves, showing mesh-like cuticle and (B) Fedrizzia parvipilus, showing lineate-reticulate cuticle. Scale bar = 50.

FIGURE 18. Sternogynial shield of (A) Fedrizzia sellnicki, showing strong honeycomb-like reticulation and (B) Fedrizzia bornemisszai, showing weaker network of reticulation. Scale bar = 50.

FIGURES 33 – 34. Fedrizzia gilloglyi sp. nov. 33, venter of female; 34, venter of male. Scale bar = 100.

FIGURES 27 – 32. Palp trochanter of: 27, 28, Fedrizzia sellnicki; 29, Fedrizzia gilloglyi; 30, Fedrizzia parvipilus; 31, Parafedrizzia buloloensis and 32, Neofedrizzia lepas. b = blunt process, s = spine-like or denticulate process. Scale bar = 50.

FIGURES 35 – 36. Fedrizzia parvipilus sp. nov. 35, venter of female; 36, venter of male. Scale bar = 100.

FIGURES 22 – 26. Fedrizzia abradoalves sp. nov. 22, chelicera; 23, gnathosoma of female; 24, gnathosoma of male; 25, venter of female; 26, venter of male. Scale bar = 50 for 22 – 24; 100 for 25, 26.