RT Journal Article T1 A new genus of dance fly (Diptera: Empidoidea: Hybotidae) from Cretaceous Spanish ambers and introduction to the fossiliferous amber outcrop of La Hoya (Castellón Province, Spain) A1 Solórzano Kraemer, Mónica M. A1 J. Sinclair, Bradley A1 Arillo, Antonio A1 Álvarez Parra, Sergio AB Hybotidae fly species, also known as dance flies, in Cretaceous ambers have been described from Lebanon, France, Myanmar, Russia, and Canada. Here we describe Grimaldipeza coelica gen. et sp. n., and recognize another two un-named species, in Spanish amber from the middle Albian El Soplao and lower Cenomanian La Hoya outcrops. The fore tibial gland is present in the new genus, which is characteristic of the family Hybotidae. We compare Grimaldipeza coelica gen. et sp. n. with the holotypes of Trichinites cretaceus Hennig, 1970 and Ecommocydromia difficilis Schlüter, 1978, and clarify some morphological details present in the latter two species. Further taxonomic placement beyond family of the here described new genus was not possible and remains incertae sedis within Hybotidae until extant subfamilies are better defined. We provide new paleoecological data of the hybotids, together with paleogeographical and life paleoenvironmental notes. A table with the known Cretaceous Hybotidae is provided. Furthermore, the La Hoya amber-bearing outcrop is described in detail, filling the information gap for this deposit. PB PeerJ SN 2167-8359 YR 2023 FD 2023-01 LK https://hdl.handle.net/20.500.14352/123454 UL https://hdl.handle.net/20.500.14352/123454 LA eng NO Solórzano-Kraemer MM, J. Sinclair B, Arillo A, Álvarez-Parra S. 2023. A new genus of dance fly (Diptera: Empidoidea: Hybotidae) from Cretaceous Spanish ambers and introduction to the fossiliferous amber outcrop of La Hoya (Castellón Province, Spain) PeerJ 11:e14692 https://doi.org/10.7717/peerj.14692 NO This study is a contribution to the Spanish Ministry of Science and Universities (project AEI/FEDER, UE CGL2017-84419). This work was supported by the Consejería de Industria, Turismo, Innovación, Transporte y Comercio of the Gobierno de Cantabria through the public enterprise EL SOPLAO S.L. (research agreement #20963 with University of Barcelona, for the period 2022–2025). Sergio Álvarez-Parra was also supported by the Secretaria d’Universitats i Recerca de la Generalitat de Catalunya (Spain) and the European Social Fund (2021FI_B2 00003). Mónica M. Solórzano-Kraemer was supported by the Deutsche Forschungsgemeinschaft (DFG) (project SO 894/6-1). NO Ministerio de Ciencia, Innovación y Universidades (España) NO Gobierno de Cantabria NO Generalitat de Catalunya NO European Commission NO Deutsche Forschungsgemeinschaft DS Docta Complutense RD 19 dic 2025