Latvijas Entomologs 2005, 42: 77-80. 77 Data about the Uropodina Mites (Acari, Mesostigmata) of Latvia JEN KONTSCHÁN 1 , INETA SALMANE 2 1 – Systematic Zoology Research Group of the Hungarian Academy of Sciences, Department of Zoology of the Hungarian Natural History Museum, Baross utca 13, H-1088 Budapest, Hungary; e-mail: kontscha@zoo.zoo.nhmus.hu 2 – Institute of Biology, University of Latvia, 3 Miera Str., LV-2169 Salaspils, Latvia; e-mail: incis@email.lubi.edu.lv KONTSCHÁN J., SALMANE I. 2005. DATA ABOUT THE UROPODINA (ACARI: MESOSTIGMATA) FAUNA OF LATVIA. – Latvijas entomologs 42: 77-80. Abstract: Six Uropodina species (Dinychus septentrionalis (TRÄGÅRDH, 1943), Dinychus woelkei HIRSCHMANN et ZIRNGIEBL-NICOL, 1969, Trichouropoda ovalis (C.L. KOCH, 1839), Trichouropoda shcherbakae HIRSCHMANN, 1972, Uroobovella fimicola (BERLESE, 1903), Uropoda orbicularis (O.F. MÜLLER, 1776)) from Latvia are listed. Five of them are new for the fauna of Latvia. Key words: Acari, Uropodina, Latvia, fauna. Introduction The Uropodina fauna of Latvia is poorly investigated. Until now only 2 Uropodina species, Uropoda orbicularis (O.F. MÜLLER, 1776) and Uroboovella marginata (C.L. KOCH, 1839) were known there (Eglitis 1954; Karps et al. 1990). This was mainly due to the absence of specialists of this group in Latvia. Abbreviations used in the text: L. – collected substrates, Distr. – district, f. – forest, R. – river, L. – lake. Number of Uropodina specimens was not counted. List of species Uropodina KRAMER, 1881 Uropodidae BERLESE, 1892 Dinychus septentrionalis (TRÄGÅRDH, 1943) Short description. Length of idiosoma 500-540 μm, width 300-310 μm. Shape oblong. Dorsal shield with several setiform setae. Dorsal, postdorsal, marginal and ventral shields with alveolar ornamentation. Four pairs of setae on the posterior margin of postdorsal shield. Two pairs of them penicilliate, other two pairs setiform (Fig. 1.1.). Genital shield of female large, wide, scutiform, with alveolar ornamentation and localised between coxae 3-4 (Fig. 1.2.). Species is recorded from Sweden (Wisniewski 1993). L: Alksne Distr., Dlikalns, 09.08.2003, on Trichaptum abietinum (J. DICKS.: FR.) RYVARDEN, leg. I. Salmane Dinychus woelkei HIRSCHMANN et ZIRNGIEBL-NICOL, 1969