New Data on the Genus Sucinoptius (Coleoptera, Ptinidae) from Rovno Amber

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Study of five examples of spider beetle inclusions from Rovno amber revealed that at least three of these spider beetles belong to the genus Sucinoptinus Bellés et Vitali, 2007, of them, S. rovnoensis sp. n. (most probably from Klesov) and S. brevipennis sp. n. from Dubrovitsa are described. S. rovnoensis is similar to the previously known S. bukejsi Alekseev in having the same general structure of pronotum and elytra, differing from it by the morphology of pronotal sides, which are only slightly rounded and practically not constricted near the base, whereas in S. bukejsi the sides are well rounded leaving a slight but clear constriction near the base. S. brevipennis is similar to S. bukejsi Alekseev and S. sucini Bellés et Vitali in having the same general structure of the prothorax, but differing from them in having much shorter elytra. Addition of these two new species to the two previously known, S. sucini, from the eastern Baltic Sea coast, and S. bukejsi, from Kaliningrad Region, indicates that the genus Sucinoptinus was much more diverse and widespread in Late Eocene forests than former reports suggested.

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