Neofedrizzia leonilae Rosario and Hunter

Seeman, Owen D., 2007, Revision of the Fedrizziidae (Acari: Mesostigmata: Fedrizzioidea), Zootaxa 1480, pp. 1-55 : 44-46

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Neofedrizzia leonilae Rosario and Hunter


Neofedrizzia leonilae Rosario and Hunter

( Fig. 50 View FIGURE 50 )

Neofedrizzia leonilae Rosario and Hunter, 1984: 199 .

Type specimens. Paratypes, PHILIPPINE IS: F, Mt Makiling, Los Baños, Laguna, 8.iv. 1971, A. Sayavoc, ex passalid beetle ( OSAL 0034876). M, same data except coll. G.D. Salinas Jr, ex bark of rotten log ( OSAL 0034877). In Ohio State University Acarology Laboratory Collection.

Diagnosis. Both sexes: idiosoma 718–780 long; anterior hyaline projection does not extend past CxI; exopodal patterning between CxII–III faintly striped; pedofossae III and IV absent; seta h 1 with 9 barbs; distal spine-like process on palp femur thick, ca. 10 long; one non-filamentous excrescence ribbon-like, the other a short serrated blade; femur III and IV with small lamellae. Female: sternal shield smooth; seta st 1 18–32 shorter than to as long as base of tritosternum; setae st 2-4 <10 long; sternogynial shield smooth, anterior margin straight. Male: tetartosternum absent, sternal processes not articulated with sternoventral shield, symmetrical, directed anteriorly, tips separate from each other; sternoventral shield (anterior of genital opening) smooth; seta st 1 ca. 20 long, placed on anterior margin of sternoventral shield; genital opening placed between CxII–III, not flanked by pores.

Redescription. Female: Idiosoma 760 long, 560 wide; anterior hyaline projection with 1 pair of barbed setae 45 long. Tritosternum base 40 long, 30 wide. Tetartosternum reticulate, sternal shield smooth; tetartosternum crown-shaped; st 1 barbed, 20 long, st 2 8 long, st 3 8 long, st 4 5. Sternogynial shield 118 long, 108 wide, smooth, no pores and 3 setae flanking each side of shield. Ventral shield smooth medially and in intercoxal region, weakly reticulate laterally; 1 pair large semi-circular pores posteromedially of Cx IV, 1 pair of eye-like pores, 5–6 pairs of small round pores, and 6–7 pairs of small (<5 long) setae. Ventrianal shield 145 long, 335 wide, smooth to weakly reticulate, paranal setae 50 long, other setae minute; anterolateral corner of ventrianal shield not, or weakly, fused with ventral shield. Marginal shields weakly reticulate. Pedofossae III absent, CxIV-marginal suture weak, terminates well before edge of marginal shield.

Legs. TrI with seta pv 1 slightly thicker than seta av 1. FeI with seta pv 3 longer and slightly thicker than setae pv 1 and pv 2. FeII with ventral lamella, seta pv 1 30 long, setiform, seta pv 2 25 long, setiform, seta ad 1 barbed and thickened. GeII with setae ad 3, pd 3 thickened. FeIII with small lamella distal to av 1; seta pv 1 barbed, not spine-like, only slightly thickened; seta pd 1 barbed, slightly thickened. GeIII and TiIII with pd setae slightly thickened. FeIV with lamella, expanded distal to av 1, seta pv 1 barbed, slightly thickened, seta pd 2 just distal to ad 2; seta ad 2 thickened. TaII–IV with seta av 2 and av 3 spine-like, av 2 subequal in length to seta av 3.

Gnathosoma . Seta h 1 curved, with 8–9 barbs, 55 long, distance between h 1 –h 1 8; h 2 with several small barbs, 45 long; h 3 10 long, posterolaterad h 2; palpcoxal seta 15 long. Corniculi on small tubercles. Palp, seta av 1 on trochanter with> 6 long barbs, 43–45 long; av 2 with few or no barbs, 45 long; palp femur with distal spine 10 long. Chelicera, fixed digit 135 long, movable digit 38 long; chelicerae otherwise obscured.

Male: Idiosoma 770 long, 620 wide. Tritosternum base broad, 48 long, 48 wide. Sternal processes not articulated with sternoventral shield, symmetrical, projecting from sternal shield, 38 long, with rounded ends, the internal margins bearing setae st 1, 18–20 long. Sternal shield anterior of genital opening smooth. Seta st 2 smooth, blade-like, 25 long, st 3 18 long. Genital opening 50 long, 53 wide, without large pores laterad the opening. Large lamellae on Cx I. Gnathosoma . Seta h 3 posterolaterad h 1, level with h 2.

Remarks. The original description of this species shows the female sternogynial shield flanked by relatively broad latigynial shields that each have three pairs of minute setae. However, these setae are not on the latigynial shield, but instead are on the ventral shield and flank the sternogynial shield. The latigynial shields lie beneath this shield (i.e. are internal) and do not bear setae, as in all Fedrizziidae . The male presternal area is also misrepresented: setae st 1 are omitted – these are placed in the medial angle of the presternal processes ( Fig. 50 View FIGURE 50 ). The sternal processes are also misinterpreted: the “tetartosternum” (which is fused to the sternoventral shield, yet lines of fusion are visible) is shown with a pair of anteriorly directed processes that arise from the interior surface of the sternoventral shield. These processes do not lie beneath the shield, but arise from its exterior surface.

Rosario & Hunter (1984) noted that this species resembles N. cynota and N. tani , but did not compare the species with its most strikingly similar species, N. vitzthumi . These species can be distinguished by the width of the idiosoma (560 in N. leonilae vs 510 in N. vitzthumi ), the length of the anterior dorsal setae (45 vs 20– 28), the length of setae st 1 (20 vs 28–30) and st 2 (8 vs 15), and the number of pores flanking the sternogynial shield (0 vs 2–3 pairs). Seta pv 1 on FeIV also appears thicker in N. vitzthumi , but this small difference is difficult to quantify. A further difference is that stp 3, on the sternogynial shield, have their centres 25–28 from the lateral margin of the sternogynial shield in N. leonilae but 15–18 from the lateral margin in N. vitzthumi . Thus, I have retained N. vitzthumi and N. leonilae as distinct species.


Ohio State University Acarology Laboratory














Neofedrizzia leonilae Rosario and Hunter

Seeman, Owen D. 2007

Neofedrizzia leonilae

Rosario 1984: 199