Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 83. (Budapest 1991)

Papp, L.: Notes on the genus Richardsia L. Papp (Diptera, Sphaeroceridae)

Figs 1-4. Richardsia mongolica L. PAPP, male: 1 — abdomen, ventral view, 2 = hypandrial apodeme and right hypandrial arm, dorsal view, 3 = surstylus in broadest extension, inner view, 4 = epandrium and left surstylus caudally. - Scales: Fig. 1 = 1.0 mm, Fig. 3 = 0.1 mm, Figs 2 and 4 = 0.2 mm. Abbreviation: g = insertion of postgonite (paramere)