Insects in the Early Cretaceous ecosystems of the West Mongolia. Description of fossils Muscida (=Diptera). Bibionomorpha et Asilomorpha. Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya Trudy, No. 28 1986: 125-154. 143 [Zoological Record Volume 123]