Neofedrizzia bunyas Seeman

Seeman, Owen D., 2007, Revision of the Fedrizziidae (Acari: Mesostigmata: Fedrizzioidea), Zootaxa 1480, pp. 1-55 : 33-34

Neofedrizzia bunyas Seeman sp. nov.

( Figs 37 – 38 )

Type specimens. Holotype, F, Australia: Queensland: Cherry Plain, BM, 12.ii.1996, O. Seeman, on P. dilatatus (S74092). Paratypes, Bunya Mountains: M, same data as holotype ( S74093 ); F, 3 M, Dandabah, 12.ii.1996, on P. dilatatus (S74094-97); 2 F, M, Little Falls, 13.ii.1996, from pupal chamber of M. quaestionis (S74098-100). All specimens deposited in QM. M, same data as holotype, deposited in ANIC.

Diagnosis. Both sexes: idiosoma 1100 –1140 long; anterior hyaline projection does not extend past CxI; exopodal patterning between CxII–III striped; pedofossae III present, IV absent; seta h1 with 3 large barbs; distal spine-like process on palp femur minute or absent; one non-filamentous excrescence ribbon-like, the other a short serrated blade; femur III and IV with large lamellae. Female: sternal shield reticulated; seta st1 20 long, much shorter than base of tritosternum; setae st 2-3 4–10 long, st4 minute; sternogynial shield smooth, anterior margin straight. Male: tetartosternum absent; presternal processes articulated with sternoventral shield, asymmetrical, the left longer than the right, with truncate tips, directed inwards; sternoventral shield (anterior of genital opening) smooth; seta st1 50–65 long; genital opening placed between CxII–III, flanked by 8–10 pores.

Description. Female: Idiosoma 1100 –1140 long, 820–840 wide; anterior hyaline projection with 1 pair of barbed setae 54–60 long. Tritosternum base 66–67 long, 32–36 wide. Tetartosternum and sternal shield reticulate; tetartosternum crown-shaped; st1 20 long, st2 4–8 long, st3 10 long, st4 minute. Sternogynial shield 130–138 long, 128–142 wide, smooth, 4–5 pores flanking each side of shield. Ventral shield lineate, smooth in intercoxal region; 1 pair large semi-circular pores posteromedially of Cx IV, 1 pair of eye-like pores, ca. 12 pairs of small round pores, and 13 pairs of small (<5 long) setae. Ventrianal shield 220–225 long, 515–540 wide, with lineate reticulation, paranal setae 80–94 long, other setae minute; anterolateral corner of ventrianal shield not fused with ventral shield. Marginal shields with lineate reticulation. Pedofossae III and CxIV-marginal suture present.

Legs. TrI with seta pv1 slightly thicker than seta av1. FeI with seta pv3 longer and thicker than setae pv1 and pv2. FeII with ventral lamella, seta ad1 barbed and thickened. GeII with seta ad3 and pd3 thickened. FeIII with lamella, expanded distal to av1, seta pv1 spine-like. GeIII with seta pd2 spine-like. FeIV with lamella, expanded distal to av1, seta pv1 thick, spine-like, seta ad2 thickened, seta pd 2 in line with or just proximal to seta ad2. TaII–IV with seta av2 spine-like, shorter than seta av3. Legs II–IV with setiform ad and pd setae.

Gnathosoma . Seta h1 curved, with 3 large barbs, 67–69 long, distance between h1–h 1 10–12; h2 with 3 small barbs, 53 long; h 3 10–11 long, posterolaterad h2; palpcoxal seta 22–25 long. Corniculi not on tubercles. Palp, seta av1 on trochanter with 18–20 barbs, 61 long; av2 with 3 small barbs, 63 long. Chelicera, fixed digit 200–205 long, movable digit 62 long; fixed digit with 2 large and 1 minute subapical tooth; excrescences consist of a large brush-like process, a short serrated blade, and a ribbon-like process with a toothed margin that extends well beyond the end of chelicerae.

Male: Idiosoma 1150 long, 850 wide. Tritosternum base broad, 70–72 long, 82–84 wide. Presternal processes asymmetrical, left process longer than right, broadly attached to sternal shield and pointing inwards; right process with a tooth-like ridge, left process with a longitudinal ridge. Sternal shield anterior of genital opening smooth. Seta st1 smooth, 50–65 long. Genital opening 78–80 long, 72–75 wide, with 8–10 large pores laterad the opening. Large lamellae on Cx I. Gnathosoma . Seta h3 posterolaterad h1, anterior h2.

Remarks. This species is found in the Bunya Mountains and is common on M. quaestionis .

Etymology. The specific name is derived from the type locality, the Bunya Mountains.

Figures

FIGURES 37 – 38. Neofedrizzia bunyas sp. nov. 37, venter of female; 38, venter of male. Scale bar = 100.