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In the year 2011 Leucorrhinia pectoralis was recorded in the former borehole sulphur mine „Jeziórko” (E of Tarnobrzeg, south– eastern Poland). The species was observed in two drainage canals of mining subsidence (sites 1 and 3) as well as along the road running through the area of flood lands in mining subsidence (site 2). At sites 2 and 3 the species was very numerous (on May 28, more than 100 specimens per 100 m of observation transect), at site 3 numerous territorial males were observed. For the L. pectoralis the examined areas are typical secondary habitats to which this species is being adapted and in the suitable stages of succession it often forms large populations in Poland. New data is essential for the knowledge about the distribution of this species in Poland (Bernard et al. 2009). It fills the gap on the map of distribution situated between central Poland and the Lublin Region. It is also the first one from the central part of the Sandomierz Basin, the area with very little data in general so far. This situation results mainly from the lack of respectively targeted studies on odonatofauna of this macroregion.
A study upon the total abundance of two whitefaces, Leucorrhinia caudalis and Leucorrhinia pectoralis was performed at the beginning of June 2008 in the nature reser- ve “Zdręczno Lake”, Tuchola Forest. The abundance estimation was based upon the number of exuviae collected within the re- serve, among the reed and shore vegetation, also in some distance from the shore. Alto- gether 76 samples were gathered, each com- posed of exuviae collected from the area of 1m2. In total 101 exuviae of L. caudalis (mean density: 1.33 ind/m2, density range: 0–7 ind/m2, SD=1.32) and 176 exuviae of L. pectoralis (mean density: 2.32 ind/m2, density range: 0–7 ind/m2, SD=1.68) were found. Based on aerial photographs (Phot. 1) the total area of habitat available for whi- teface larvae in Zdręczno Lake was estima- ted to be from 12 179 m2 (1.2 ha) to 65 969 m2 (6.6 ha). Concluding, the total population abundance in the reserve was calculated as 16 198–97 739 individuals for L. caudalis and 28 255–153 048 individuals for L. pectoralis
The inventory of dragon*ies was con- ducted on 244 sites in the Silesian Province in 2002–2012. The total number of 34 sites of Leucorrhinia pectoralis was found. This species is protected by law in Poland and a priority for the European program for hab- itats protection “Nature 2000”. The compar- ison of the present with historical data from the years 1958–1965 showed that L. pectoralis vanishes from peat bogs in this region. The reason for this situation is deteriorating condition of these habitats, mainly because of their desiccation and industrial pollution. It was noted however, that the species is present in a relatively high number on for- est sinkhole ponds emerging over coal ex- ploitation areas in the central, industrialized part of the province. Approximately 20% of investigated sinkholes presented conditions favorable for the reproduction and develop- ment of L. pectoralis. However, these habi- tats are unstable and do not sustain perma- nent presence of the species.
The dragonfly fauna of the Gorce Mountains (West Carpathians Mts.) consists of 24 species, mostly characteristic of small water bodies, Reophilois species are practically absent. Twenty one species were caught by the author, the most interesting being: Sympetrum striolatum, Leucorrhinia pectoralis, L. rubicunda and Sympetrum fonscolombii, the lattr very rare in Poland.
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