Cercyon castaneipennis, VORST, 2009

Alekseev, Vitaly I. & Bukejs, Andris, 2011, Contributions to the knowledge of beetles (Insecta: Coleoptera) in the Kaliningrad region. 2, Baltic Journal of Coleopterology 11 (2), pp. 209-231 : 211

5. CERCYON CASTANEIPENNIS VORST, 2009 *

Examined material: 1 km NE Chernyakhovsk , 54°64´57´´N 21°84´68.5´´E, 8.VI.1993 (2 exx, pasture, cattle excrements, leg. V.Alekseev); the Curonian Spit , 1 km W Morskoe , 55°23´44´´N 20°90´44´´E, 8.V.1997 (2 exx, Baltic sea shore, coastal refuse of the beach, leg. V. Alekseev) .

Comments: After description of this new species ( Vorst 2009) and division of Cercyon obsoletus (Gyllenhal, 1808) [= C. lugubre Olivier 1790 ] in two separate species, all the earlier published data need to be redeterminated or confirmed. In the Baltic region C. castanipennis s.str. is mentioned for Sweden, north-eastern Poland and Latvia ( Vorst 2009); it is known also from Central Russia ( Prokin 2010). Formally, C. castanipennis is new for the fauna of the Kaliningrad region. In accord to our collections, the coprophilous species prefers more dry and sandy habitats (valleys of rivers and sea coasts) in comparison with closely related C. obsoletus . Future investigations of bionomics, features of distribution and phenology of both Cercyon species are required in the region.