Mixozercon sellnicki Schweizer 1948

• Main Authors: Díaz-Aguilar, Irma, Ujvári, Zsolt
• Format: Text
• Language: unknown
• Published: Zenodo 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Arachnida; Mesostigmata; Zerconidae; Mixozercon; Mixozercon sellnicki; Canada; Jura; Seta; Polska; Petrova; Iceland; Mite
• Online Access: https://dx.doi.org/10.5281/zenodo.6205945; https://zenodo.org/record/6205945

Mixozercon sellnicki (Schweizer, 1948) Parazercon sellnicki Schweizer, 1948: 23. Zercon sellnicki .― Sellnick, 1958: 337; Schweizer, 1961: 166; Karg, 1971: 309; Petrova, 1977: 591. Mixozercon sellnicki .― Halašková, 1963: 206; 1969 a: 343; Błaszak, 1974: 49; Karg, 1993: 329; Mašán & Fenďa, 2004: 56; Błaszak et al ., 2007: 104. Diagnosis. Central and submarginal setae of podonotum smooth, except j 1 and j 2 longer and pilose. Setae J 1 - J 2 and Z 1 short, smooth, J 3 -J 5 and Z 2 -Z 3 short, pilose, other J-, Z- and S-setae elongate, brush-like, plumose. Setae R 1 pilose, longer than other R-setae, which are smooth and thorn-like. Setae J 5 situated between dorsal cavities. No dorsal seta long enough to reach the base of the following seta. Setae S 1 situated lateral to Z 1. Pores Po 2 situated on a line connecting Z 2 and S 1. Podonotum covered by tile-like pattern; distinct punctation present on whole opisthonotum. Dorsal cavities well-sclerotised, saddle-like, with smooth anterior margin. Adgenital and post-genital sclerites absent. Distribution. Iceland, Sweden, Switzerland, Germany, Latvia, Poland, Slovakia and Romania. Remarks. We examined the type material of the species deposited in the Natural History Museum of Basel (syntypes on slides He 159, He 170 and He 176). On the slides labelled as “ Parazercon sellnicki ” there are also other mesostigmatid mite species, which might be confusing. Schweizer (1948) designated five females and two males as syntypes, but we found no male specimens on the slides. In Slovakian specimens found by Halašková (1963), setae j 2 are short and smooth, and J 2 are pilose, which was insufficient for establishing a new taxon, perhaps as a result of intraspecific variation. In a later diagnosis of Halašková (1969 a), J 2 is described as smooth. In Halašková’s drawing there is only one pair of setae on the anterior margin of the ventri-anal shield, but Błaszak (1974), Halašková (1969 a) and Błaszak (1979) indicated that there are two pairs of setae in that position. The second pair of ventri-anal setae on the anterior margin of ventri-anal shield was probably present but not clearly visible, according to the diagnosis in Halašková (1969 a). : Published as part of Díaz-Aguilar, Irma & Ujvári, Zsolt, 2010, New zerconid mites (Acari: Mesostigmata: Zerconidae) from Canada, with a review of the genus Mixozercon Halašková, 1963, pp. 1-29 in Zootaxa 2555 on pages 3-4, DOI: 10.5281/zenodo.196913 : {"references": ["Schweizer, J. (1948) Landmilben aus der Umgebung des Schweizerischen Nationalparks. Ergebnisse der wissenschaftlichen Untersuchungen des Schweizerischen Nationalparks, 20. Liestal, 2, 1 - 28.", "Sellnick, M. (1958) Die Familie Zerconidae Berlese. Acta Zoologica Hungaricae, 3, 313 - 368.", "Schweizer, J. (1961) Die Landmilben der Schweiz (Mittelland, Jura und Alpen). Parasitiformes Reuter. Denkschriften der Schweizerischen Naturforschenden Gesellschaft, 84, 1 - 207.", "Karg, W. (1971) Acari (Acarina), Milben. Unterordnung Anactinochaeta (Parasitiformes). Die freilebenden Gamasina (Gamasides), Raubmilben. Die Tierwelt Deutschlands, 59, 1 - 475.", "Petrova, A. D. (1977) Family Zerconidae Canestrini, 1891. In: Gilyarov, M. S. & Bregetova, N. G. (Eds.). A Key to the Soil - Inhabiting Mites, Mesostigmata. Nauka, Leningrad, pp. 577 - 621. (in Russian).", "Halaskova, V. (1963) Mixozercon, n. g., a new genus of the family Zerconidae (Acari). Acta Universitatis Carolinae - Biologica, 2, 203 - 208.", "Blaszak, C. (1974) Zerconidae (Acari, Mesostigmata) Polski. Monografie Fauny Polski. 3. Polska Akademia Nauk, Zaklad Zoologii Systematycznej i Doswiadczalnej, Panstwowe Wydawnicztwo Naukowe, Warszawa, Krakow, Poland, 315 pp. (in Polish, English and Russian summaries).", "Karg, W. (1993) Acari (Acarina), Milben. Parasitiformes (Anactinochaeta) Cohors Gamasina Leach, Raubmilben. 2., uberarbeitete Auflage. Die Tierwelt Deutschlands, 59, 1 - 523.", "Masan, P. & Fenda, P. (2004) Zerconid Mites of Slovakia (Acari, Mesostigmata, Zerconidae). Institute of Zoology, Slovak Academy of Sciences, Bratislava, 238 pp.", "Blaszak, C., Ehrnsberger, R., Olszanowski, Z. & Szywilewska, A. (2007) Die Milben in der Zoologischen Staatssammlung Munchen. Teil 8. Familie Zerconidae (Acari, Gamasida). Spixiana, 30, 103 - 116.", "Halaskova, V. (1969 a) Zerconidae of Czechoslovakia (Acari: Mesostigmata). Acta Universitatis Carolinae - Biologica, 3 - 4, 175 - 352.", "Blaszak, C. (1979) Systematic Studies on the family Zerconidae. IV. Asian Zerconidae (Acari, Mesostigmata). Acta Zoologica Cracoviensia, 24, 3 - 112."]}