A new species of Cretevania (Hymenoptera: Evaniidae) preserved in Albian amber of El Soplao (Cantabria, Spain)

PeÑalver E, DelclÒs X, Álvarez-Parra S, PÉrez-De La Fuente R, SÁnchez-GarcÍa A

<jats:p>A new species of the diverse extinct genus Cretevania Rasnitsyn, 1975, Cretevania orgonomecorum Peñalver &amp; Sánchez-García sp. nov., is described from Spanish Lower Cretaceous (middle Albian) amber from El Soplao, based on a single, complete and well-preserved female. The new species is compared with other known species of the genus, mainly those with similar wing shape and venation, large body size, and those described from Albian Spanish amber. This new species is among the largest within the genus and similar in body length to C. tenuis from Cenomanian Kachin amber (Myanmar) and C. pristina from Barremian compression rocks of Beipiao (China). Its description and the revision of other species have led to the identification of previously unrecognized characters which may be useful in future taxonomic diagnoses. These results contribute to a more accurate understanding of interspecific differences and will help delimit species boundaries within a genus, proving increasingly diverse in the Cretaceous. The previously established synonymisation of the genus Procretevania as junior to Cretevania is also reviewed here. Palaeobiological comments are provided based on anatomical features of the genus.</jats:p>