Prozercon yavuzi Urhan

Ujvári, Zsolt, 2011, Six new species of Prozercon Sellnick, 1943 (Acari, Mesostigmata, Zerconidae) from Greece, with remarks on the genus, Zootaxa 2785, pp. 1-31 : 6-8

Prozercon yavuzi Urhan

( Figs 5–7 , 39 )

Prozercon yavuzi Urhan, 1998a: 538 ; 2008: 103; 2010: 136; Ujvári, 2008: 100.

Material examined ( Fig. 39 ). E-2556, Greece, Arkadia county, Elliniko, Platanus forest south of the Gortis ruins, 380 m a.s.l., N37°32.020’ E22°03.191’, 06.04.2009, leg. Dányi, L., Kontschán, J., Murányi, D. (3 females, 1 DN).

Diagnosis. Peritrematal shield with posterolateral tips reaching level of R1. Dorsal podonotal setae pilose except j5 which is smooth. Marginal R-setae smooth, thorn-like, other opisthonotal setae plumose. Setae S2 inserted on a line connecting Z1 and Z2, equidistantly. Setae S4 absent. Glands gdS2 (Po2) situated medially to a line connecting S2 and Z2, gdZ3 (Po3) anteromedially to insertions of Z4. Setae J3-J4 reaching bases of the following setae.

Description. Female. Length of idiosoma: 342–350 μm (346 μm); width: 235–240 μm (238 µm) (n = 3).

Dorsal idiosoma ( Fig. 5 ). Podonotum with 20 pairs of setae, j1-6, z2-6, s1-6, r2 and r4-5 inserted dorsally, setae r1 and r3 inserted ventrally, on peritrematal shields. Podonotal setae densely plumose except j5 short, smooth and needle-like. Setae j2-6, s1, s4-5, z2, z4-6 pointed, j1, z3, s2-3, s6, r2, r4-5 brush-like; s2, r2 and r4 shorter than other brush-like marginal setae. Glands gds1 (po1) situated posteromedially to insertions of s1; gdj4 (po2) situated anteromedially to z4; gds4 (po3) on line connecting s4 and s5. Podonotal shield covered by reticulate pattern, posterior surface with distinct alveolar pits.

Opisthonotum with 20–21 pairs of setae, J1-5, Z1-5, S1-5, marginal R-series with five or six pairs of setae, six pairs in majority of specimens. Setae J1-5, Z1-4 and S2 similar in shape and length, densely pilose, pointed. Setae Z5, S3 and S5 brush-like, plumose, extending beyond margin of opisthonotum. Setae S1 plumose, twice as long as short, smooth and thorn-like R-setae. Setae S4 absent. Setae J1-2 not reaching insertions of the following setae, J3– 4 reaching insertions of the following setae of the series. Setae J5 reaching beyond margins of opisthonotum. Setae S2 inserted on line connecting Z1 and Z2, equidistantly. Bases of central opisthonotal setae small to medium-sized. Length of opisthonotal setae and distances between their insertions as in Table 1. Glands gdZ1 (Po1) situated anteromedially to insertions of Z1; gdS2 (Po2) medially to line connecting S2 and Z2; gdZ3 (Po3) anteromedially to insertions of Z4; gdS5 (Po4) medially to S5. Whole opisthonotal shield covered by relatively large, distinct, irregular pits. Dorsal cavities uniform, weakly developed.

Ƥ DN Ƥ DN Ƥ DN J 1 26 17 Z 1 22 17 S 1 15 7 J1-J2 38 33 Z1-Z 2 53 43 S1- S 2 30 28 J 2 28 19 Z 2 25 21 S 2 23 16 J2-J 3 34 27 Z2-Z 3 28 24 S2- S 3 26 23 J 3 28 21 Z 3 24 18 S 3 30 28 J3-J 4 27 24 Z3-Z 4 21 18 S3- S5 69 64 J 4 30 20 Z 4 22 18 S 5 26 31 J4-J 5 25 20 Z4-Z5 56 46

J 5 24 19 Z 5 25 26

Ventral idiosoma ( Fig. 6 ). Peritrematal shield separated from dorsal shields by a narrow membranous slit, with posterolateral tips reaching level of R1, covered by fine reticulation. Peritremes straight. Chaetotaxy and poroidotaxy of ventral shields typical for genus Prozercon . Sternal shield well sclerotised, 54 μm long and 43 μm wide at the level of setae st2, with straight posterior margin and reticulate ornamentation. Ventrianal shield with short, smooth and needle-like preanal and adanal setae, setae ZV1 absent on anterior margin of the shield. Postanal seta longer than preanal and adanal setae, distally serrate, setae JV5 similar to R-setae, short, smooth and thorn-like. Anal valves with euanal setae. Glands gv3 situated anterolaterally to adanal setae. Anterior surface of ventrianal shield covered by squamous pattern to level of JV3-ZV3-ZV4.

Deutonymph ( Fig. 7 ). Length of idiosoma: 306 μm; width: 215 μm (n = 1).

Podonotal setae j1, z3, s3 and s6 markedly elongate, brush-like, plumose. Marginal setae s2, r2 and r4 short, barbed. Setae j2, j6, s1, z2, z4, s4, s5 and z6 similar in shape and length, densely pilose, pointed. Setae j4 and z5 finely pilose, j3 and j5 smooth and needle-like. Position of gland pores as for the female. Opisthonotal shield covered by weakly-developed, serrulate reticulation. Opisthonotal chaetotaxy and poroidotaxy as for the female, setae S1 similar in length to marginal R-setae. Length of opisthonotal setae and distances between their insertions as in Table 1. Whole surface of opisthonotum covered by small, irregular pits.

Remarks. This species has been collected in the Aegean region of Turkey ( Urhan, 1998a), and in Crete ( Ujvári, 2008). Setae JV5 are plumose and the peritrematal shields are expanded to the level of setae R2 on specimens from the Aegean region of Turkey, while JV5 are smooth and needle-like, peritrematal shields are expanded only to level of S1 on the ones collected on the Peloponnesos.

Figures

FIGURES 5 – 7. Prozercon yavuzi. 5. Dorsal view of female. 6. Ventral view of female. 7. Dorsal view of deutonymph.

FIGURES 36 – 39. New occurences of Prozercon species found in Greece.