Microcostaphron, Ortega-Blanco & Rasnitsyn & Delclòs, 2010

Ortega-Blanco, Jaime, Rasnitsyn, Alexander P. & Delclòs, Xavier, 2010, A new family of ceraphronoid wasps from Early Cretaceous Álava Amber, Spain, Acta Palaeontologica Polonica 55 (2), pp. 265-276 : 270-272

Genus Microcostaphron nov.

Type species: Microcostaphron parvus sp. nov., monotypic.

Etymology: Combination of Microcosta—referring to the evident but very small costal cell that it shows and −phron for being placed within Ceraphronoidea .

Diagnosis.—Head short and wider than mesosoma. Flagellomeres barely longer than wide, sub−equal in length; first flagellomere longer than pedicel, slightly narrowed basally but doi:10.4202/app.2009.0014

not reduced (differing from Radiophron gen. nov. and basal stigmaphronids Elasmophron and Libanophron ). Pronotum elongate, apparently as long as mesonotum medially. Medial mesoscutal sulcus not visible (possibly lost). Scutellum almost twice as long as mesoscutum, not covering dorsal view of propodeum but ending more acute than in Elasmophron . Fore wing vein C weak or lost, Sc+ R weak or absent basally, slightly concave in respect to anterior margin, leaving a thin but distinct membrane representing costal space. Rs+2r−rs arising from pterostigma basal third, clearly angled basally, and more or less equally curved along the rest of the vein. Femora, tibial apical margin and tibial spurs not widened nor enlarged (differentiating from all except Radiophron gen. nov., Elasmophron , and Libanophron ). Genitalia protruding, with large arched gonostyli bearing each 6 apical long setae.