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

article

Mónica M. Solórzano-Kraemer¹  Bradley J. Sinclair²  Antonio Arillo³  Sergio Álvarez-Parra⁴ 

[1] Paläontologie und Historische Geologie, Senckenberg Forschungsinstitut und Naturmuseum;Canadian Food Inspection Agency, Canadian National Collection of Insects;Departamento de Biodiversidad, Ecología y Evolución, Facultad de Biología, Universidad Complutense de Madrid;Departament de Dinàmica de la Terra i de l’Oceà, Facultat de Ciències de la Terra, Universitat de Barcelona;Institut de Recerca de la Biodiversitat ,(IRBio), Universitat de Barcelona

关键词: Amber;    New species;    New genus;    Amber-bearing outcrop;    Trichinites;    Ecommocydromia;   

DOI  :  10.7717/peerj.14692

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

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.

【 授权许可】

CC BY