Long-proboscid brachyceran flies in Cretaceous amber (Diptera: Stratiomyomorpha: Zhangsolvidae)

The monophyletic family Zhangsolvidae comprises stout-bodied brachyceran flies with a long proboscis and occurring only in the Cretaceous, originally known in shale from the Early Cretaceous Laiyang Formation (Fm.) in China (ZhangsolvaNagatomi & Yang), subsequently from limestones of the Early Cretaceous Crato Fm. of Brazil. CratomyoidesWilkommen is synonymized with CratomyiaMazzarolo & Amorim, both from the Crato Fm.; Cratomyiidae is synonymized with Zhangsolvidae. Two genera and three species of Zhangsolvidae are described: Buccinatormyia magnificaArillo, Penalver & Perez-de la Fuente, gen. et sp.n. and B. soplaensisArillo, Penalver & Perez-de la Fuente, sp.n., in Albian amber from Las Penosas Fm. in Spain; and Linguatormyia teletactaGrimaldi, gen. et sp.n., in Upper Albian-Lower Cenomanian amber from Hukawng Valley in Myanmar. Buccinatormyia soplaensis and Linguatormyia teletacta are unique among all Brachycera, extant or extinct, by their remarkably long, flagellate antennae, about 1.6x the body length in the latter species. A phylogenetic analysis of 52 morphological characters for 35 taxa is presented, 11 taxa being Cretaceous species, which supports placement of the family within Stratiomyomorpha, although not to any particular family within the infraorder. This published work has been registered in Zoobank, .