Mesitinae of world genera 'Mesitius Spinola',Pilomesitius Mbczar, Parvoculus Moczar, Pycnomesitius Moczar and Heterocoelia Dahlbom. 3. (Hymenoptera: Betnylidae). Acta Zoologica Hungarica, 17 1971: 295-332. 309 [Zoological Record Volume 108]