Contribution to the taxonomy, bionomics and distribution of the Palaearctic Celonites cyprius-group (Hymenoptera, Vespidae, Masarinae) with the description of two new species from the North Caucasus and East Anatolia

Celonites ivanovi sp. nov. is described as a new species from Dagestan where it has been recorded dry habitats in small area on the northern side of Greater Caucasus. cagrii Erzurum Province east Turkey. As other members C. cyprius -group, females both were observed to visit flowers Heliotropium (Boraginaceae). A morphological examination including male genitalia all -group revealed that and share apomorphic characters this group are closely related osseus Morawitz, 1888. Mean genetic distance between based COI-5 sequences 7.40%. The geographical distribution summarized an illustrated key provided for identification males species. lectotype designated .