New Zerconid Mite Species (Acari: Mesostigmata: Zerconidae) From Romania Author Ujvári, Zs. Author Cälugär, A text Acta Zoologica Academiae Scientiarum Hungaricae 2010 56 3 235 255 journal article 10.5281/zenodo.12584379 2064-2474 12584379 Prozercon katae UJVÁRI et CĂLUGĂR sp. n. ( Figs 1–2 ) Type material. Female holotype : Romania , Maramureş , Bocicoiu Mare , 6– 17.08.1940 , coll. J . Fodor and Z. Kaszab. The holotype is deposited in the HNHM . Diagnosis. Except marginal r-setae and i1, podonotal setae smooth. On opisthonotum, setae I6, Z5 and S2–4 elongated, brush-like, plumose, other opishtonotal setae short, not reaching the bases of the following one. Among the short setae I1, Z1 and S1 smooth, others feathered. Setae I2 situated far from each other. S1 situated antero-laterally to Z1. Pores Po2 lying outside the line connecting S1 and Z2. Dorsal fossae well sclerotized. Podonotum covered by tile-like pattern. Anterior part of opisthonotum reticulated, posterior part finely punctuated. Description. Female, holotype . Length of idiosoma: 340 µm; width: 250 µm (n = 1). Dorsal side ( Fig. 1 ). Podonotum with 22 pairs of setae: i-row with 6 pairs, z-row with 2 pairs, s-row with 5 pairs, r-row with 7 pairs, p-row with 2 pairs. Setae i1 serrated, marginal r-setae brush-like, plumose, other i-, z- and s-setae short, smooth and needle-like. Podonotum covered by irregular, tile-like pattern, posteromedial region bearing small, irregular pits. Opisthonotum with 23 pairs of setae: I-row with 6 pairs, Z-row with 5 pairs, S-row with 4 pairs and R-row with 8 pairs. Setae I1, short, smooth and needle-like. Setae I2 situated far from each other, distance between their insertions 61 µm. Setae I2–5 short, pilose or feathered, posteriorly decreasing in length. Setae Z1 and I1 similar in shape and length. Z2–4 similar in shape to pilose I-setae, Z2 situated posterolaterally to Z1, Z3 lying far beyond insertions of Z2 (44 µm). Setae Z5 relatively short, brush-like, plumose. Setae S1 similar to I1, situated anterolaterally to Z1. Setae S2–4 elongated, brush-like, plumose, reaching beyond margin of idiosoma. None of opisthonotal setae reaching bases of following setae of the series. Marginal R-setae smooth and pointed. Lengths of setae and distance between setal bases as in in table 1. Anterolateral parts of opisthonotum bearing tile-like pattern. Irregular depressions between I and Z setal-rows present, other parts finely punctuated. Dorsal fossae small, well sclerotized, saddle-like, with smooth anterior margin and with axes parallel to that of the body. Table 1. Lengths of opisthonotal setae and the distances between their bases in I-, Z- and S-rows of Prozercon katae sp. n. (measurements as mean). Figs 1–2. Prozercon katae sp. n. female: 1 = dorsal view, 2 = ventral view Dorsal poroidotaxy. Pores po1 situated posteriorly to s1, po2 lying on line connecting bases of setae i4 and s3, closer to s3, po3 outside line connecting s4 and s5. Pores Po1 lying above line connecting Z1 and S1, Po2 situated outside line connecting Z2 and S1, Po3 antiaxial to line connecting Z3 and Z4, Po4 near bases of S4. Ventral side ( Fig. 2 ). Chaetotaxy and poroidotaxy typical for subgenus Prozercon . Both p-setae short and smooth. Posteolateral tips of peritremal shields expanding posteriorly to level of setae R6-7. Peritremes straight, slightly bent anteriorly. Sternal shield well sclerotized, 52 µm long and 32 µm wide at level of setae st2, with reticulate surface. Anterior margin of ventroanal shield with one pair of setae, sculpturing pattern of latter shield tile-like. Seven pairs of preanal setae short, smooth and needle-like, postanal seta prolonged, apically barbed. Ventroanal pores situated anterolaterally to adanal setae. Male and immature stages. Unknown. Etymology. The species is dedicated in honour of a dear friend of the first author KATA WOLFF . Differential diagnosis. The new species is morphologically similar to Prozercon aristatus ATHIAS-HENRIOT , 1961 described from the Iberian Peninsula and to Prozercon neorafalskii BALAN et SERGIENKO , 1991 described from the Ukrainian Carpathians. In females of these three species anterior setae on opisthonotum are smooth and five pairs of brush-like setae (S2–4, Z5 and I6) are expanding beyond the margin of opisthonotum. The three species can be distinguished by the shape of setae on anterior surface of opisthonotum (I1, Z1 and S1 smooth in P. katae sp. n. , besides latter three setae I2 and Z2 also smooth in P. aristatus , and only I1 and S1 smooth in P. neorafalskii ), by the length of I-setae (very short, and not reaching the bases of the following setae in P. katae sp. n. , I3–5 longer, reaching the bases of the following on in P. aristatus , I2–5 longer and reaching the insertion of the following setae in P. neorafalskii ), by the situation of setae Z3 (situated far from Z2, near Z 4 in P. katae sp. n. , situated between Z2 and Z4 equidistantly in other two species), by the shape of Z4 (similar to I 3–5 in P. katae sp. n. and P. neorafalskii , significantly longer than latter setae in P. aristatus ), by the situation of pores Po1 (situated anterolaterally to Z 1 in P. katae sp. n. and P. neorafalskii , situated anteromedially to Z 1 in P. aristatus ) and by the separation of I setal-rows (widely separated in P. katae sp. n. , separated only by a narrow surface in other two species).