title: New and revised maimetshid wasps from Cretaceous ambers (Hymenoptera, Maimetshidae).
abstract: New material of the wasp family Maimetshidae (Apocrita) is presented from four Cretaceous amber deposits - the Neocomian of Lebanon, the Early Albian of Spain, the latest Albian/earliest Cenomanian of France, and the Campanian of Canada. The new record from Canadian Cretaceous amber extends the temporal and paleogeographical range of the family. New material from France is assignable to Guyotemaimetsha enigmatica Perrichot et al. including the first females for the species, while a series of males and females from Spain are described and figured as Iberomaimetsha Ortega-Blanco, Perrichot & Engel, gen. n., with the two new species Iberomaimetsha rasnitsyni Ortega-Blanco, Perrichot & Engel, sp. n. and Iberomaimetsha nihtmara Ortega-Blanco, Delclòs & Engel, sp. n.; a single female from Lebanon is described and figured as Ahiromaimetsha najlae Perrichot, Azar, Nel & Engel, gen. et sp. n., and a single male from Canada is described and figured as Ahstemiam cellula McKellar & Engel, gen. et sp. n. The taxa are compared with other maimetshids, a key to genera and species is given, and brief comments made on the family.
authors.affiliation: CNRS UMR 6118 Géosciences and Observatoire des Sciences de l'Univers de Rennes, Université Rennes 1, Campus de Beaulieu bât. 15, 263 avenue du Général Leclerc, 35042 Rennes Cedex, France.
authors.forename: Vincent
authors.initials: V
authors.lastname: Perrichot
authors.forename: Jaime
authors.initials: J
authors.lastname: Ortega-Blanco
authors.forename: Ryan C
authors.initials: RC
authors.lastname: McKellar
authors.forename: Xavier
authors.initials: X
authors.lastname: Delclòs
authors.forename: Dany
authors.initials: D
authors.lastname: Azar
authors.forename: André
authors.initials: A
authors.lastname: Nel
authors.forename: Paul
authors.initials: P
authors.lastname: Tafforeau
authors.forename: Michael S
authors.initials: MS
authors.lastname: Engel