. Bonn zoological bulletin. Zoology. 110 Wolfgang Bohme et Fig. 2. Habitat east of Wigierski National Park where our P. falcata record was found. Photograph: W. Bohme. tends the known range within Poland for about (appr.) 300 km northeastwards and immediately links it with the first Lithuanian record from 2008. The locality (Fig. 2) is sit- uated less than 20 km from the Lithuanian border and closely corresponds to the new and single Lithuanian lo- cality of this thermophilous species which is situated in the Lazdijai district at and (Ivinskis & Rimsaite 2008) (Fig. 3).
. Bonn zoological bulletin. Zoology. 110 Wolfgang Bohme et Fig. 2. Habitat east of Wigierski National Park where our P. falcata record was found. Photograph: W. Bohme. tends the known range within Poland for about (appr.) 300 km northeastwards and immediately links it with the first Lithuanian record from 2008. The locality (Fig. 2) is sit- uated less than 20 km from the Lithuanian border and closely corresponds to the new and single Lithuanian lo- cality of this thermophilous species which is situated in the Lazdijai district at and (Ivinskis & Rimsaite 2008) (Fig. 3). Our specimen is deposited in the Orthoptera collection of the Zoologisches Forschungsmu- seum A. Koenig (ZFMK) in Bonn. According to Zuna-Kratky et al. (2009), adults in Austria appear about on mid-July but start their main adulthood season from mid-August. This agrees with our female voucher specimen, which was also adult, despite its much more northemly situated locality. Road no. 16 from Augustow via Serski Las and Sejny runs in parallel to the main road (no. 8, via Suwalki to Mar- jampole in Lithuania) and has much less traffic than the latter. This alone makes it unlikely that the specimen of P. falcata could have been passively displaced by human transportation. Rather, this thermophilous species demon- strated its potential for a natural, northeastward-directed range extension not only in Germany and the Benelux countries with a predominantly oceanic climate, but also in NE Poland, under much more continental climatic con- ditions and even reached Lithuania. The several individ- uals registered there underline the existence of a popula- tion in this area rather than displaced single individuals. Intensive faunistic search is necessary to assess the dis- tribution range and its dynamics of Phaneroptera falca- ta in this region. The eastward continuation of the northern borderline of P. falcata through Belarus and the European part of the Russian Federation also needs more
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