Neofedrizzia lepas Seeman

Seeman, Owen D., 2007, Revision of the Fedrizziidae (Acari: Mesostigmata: Fedrizzioidea), Zootaxa 1480, pp. 1-55 : 46-47

publication ID 10.5281/zenodo.176844

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Neofedrizzia lepas Seeman

sp. nov.

Neofedrizzia lepas Seeman sp. nov.

( Figs 51 – 52 View FIGURES 51 – 52 )

Type specimens. Holotype, F, AUSTRALIA: Queensland: Mt Lewis, Mt Lewis Rd, 31.i. 1996, Seeman ( S 74182 View Materials ). Paratypes, 2 F, 3 M, same data as holotype ( S 74183 View Materials - 87). F, M, Atherton Tableland, Gadgarra, 28.i. 96 ( S 74188 View Materials - 89); F, M, Mt Lewis, 10.ii. 2005, C. Burwell ( S 74190 View Materials - 91). All specimens from Austropassalus hultgreni Mjöberg and deposited in QM. F, same data as holotype, deposited in ANIC.

Diagnosis. Idiosoma 1050–1130 long; anterior hyaline projection does not extend past CxI; exopodal patterning between CxII–III striped; pedofossae III present, IV absent; seta h 1 with 10–11 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 smooth; seta st 1 73–85 long, longer than base of tritosternum; setae st 2-4 4–6 long; sternogynial shield smooth, anterior margin straight. Male: tetartosternum absent, presternal processes articulated with sternoventral shield, symmetrical, with truncate ends, directed slightly inwards; sternoventral shield (anterior of genital opening) smooth; seta st 1 40–47 long; genital opening placed between CxII–III, flanked by 14–15 pores.

Description. Female: Idiosoma 1130 long, 810 wide; anterior hyaline projection with 1 pair barbed setae 50–55 long. Tritosternum base 55–60 long, 30–35 wide. Tetartosternum crown-shaped, reticulate, 43–50 long, 141–146 wide, st 1 73–85 long. Sternal shield smooth, st 2-4 4–6 long. Sternogynial shield 130–133 long, 128– 130 wide, smooth, with 6–10 pores flanking shield. Ventral shield with lineate reticulation laterally, smooth medially; 1 pair of large semi-circular pores posteromedially of CxIV, 1 pair of eye-like pores, ca. 10 pairs of small round pores, and ca. 10 pairs of small (<5 long) setae. Ventrianal shield 185–200 long, 450–485 wide, with lineate reticulation, paranal setae 68 long, other setae minute; anterolateral corner of ventrianal shield not fused with ventral shield. Marginal shield with lineate reticulation. Pedofossae III and CxIV-marginal suture present.

Legs. TrI with seta pv 1 slightly thicker than seta av 1. FeI with seta pv 3 longer and thicker than setae pv 1 and pv 2. FeII with ventral lamella, seta ad 1 barbed and thickened. GeII with seta ad 3 and pd 3 thickened. FeIII with lamella, expanded distal to av 1, seta pv 1 spine-like. GeIII with seta pd 2 spine-like. FeIV with lamella, expanded distal to av 1, seta pv 1 thick, spine-like, seta ad 2 thickened, seta pd 2 in line with seta ad 2. TaII–IV with seta av 2 spine-like, shorter than seta av 3. Legs II–IV with setiform ad and pd setae.

Gnathosoma . Seta h 1 curved, broad (4 wide), with 10–11 barbs, 72–73 long, distance between h 1 –h 1 10; h 2 barbed, 53 long; h 3 14 long, posterolaterad h 2; palpcoxal seta 20 long. Corniculi not on tubercles. Palp, seta av 1 on trochanter with many barbs, seta av 2 with few barbs. Chelicera, fixed digit 198–200 long, movable digit 51–55 long; fixed digit with 2 large and 1 minute subapical tooth; excrescences consist of a large brush-like process, a small serrated blade, and a ribbon-like process with a crenate margin that extends well beyond end of chelicerae.

Male: Idiosoma 1050–1070 long, 750 wide. Tritosternum base broad, 68–75 long, 71–73 wide. Presternal processes symmetrical, about 50 long, pointed slightly inwards, with two small lobes anteriorly. Seta st 1 barbed, 44–47 long. Sternal shield anterior of genital opening smooth. Genital opening 63–66 long, 68–71 wide, with 14–15 large pores laterad the opening. Large lamellae on Cx I. Seta h 3 posterolaterad h 1, anterior of h 2.

Remarks. This species resembles N. camini and is probably found only with the unusual passalid beetle Au. hultgreni .

Etymology. The specific name is Latin for “limpet”, and alludes to the limpet-like appearance of the Fedrizziidae .


Australian National Insect Collection