Donus cyrtus (GERMAR, 1821)

Germann, Christoph, Müller, Gerd, Müller, Ursula & Schön, Karel, 2015, An annotated checklist of the weevil fauna of Samos Island with new records for Greece (Coleoptera, Curculionoidea), Contributions to Natural History 27, pp. 1-26 : 8

Donus cyrtus (GERMAR, 1821)

Larvae and adults of D. cyrtus were found under Centaurea sp. (Asteraceae) at several localities (nos. 6, 10, 13 and 19) on the Oros Ambelos and Oros Kerkis. The larvae were successfully reared to adult stage. Winkelmann & al. (2010) already reported on the development of D. cyrtus on an undetermined Centaurea .

Another examination of Pimpinella minor (Rosaceae) near Mesogio (no. 13) revealed further larvae of a Donus species. After successful breeding, the adults could also be assigned to D. cyrtus . In a feeding experiment with adults reared from Asteraceae , P. minor was also accepted, apart from the simultaneously offered Centaurea .

The determination was confirmed with a male specimen of D. cyrtus from the Greek mainland (Athens, collection Apfelbeck in NMB), and a specimen from Bosnia-Herzegovina (Mostar, collection StÖcklein in NMB) used for comparison.