The Sphecid wasps of the genus Cerceris LATREILLE, 1802 of the 'Biologiezentrum Linz'-Collection in Linz, Austria, from Subsaharan Africa and Madagascar, with description of five new species (Hymenoptera, Apoidea, Crabronidae). Linzer Biologische Beitraege, 52(1), Jul 31 2020: 93-118. 110 [Zoological Record Volume 157]