Merodon cuthbertsoni, holotype, male genitalia. A Epandrium, lateral view B Epandrium, ventral view C Hypandrium, lateral view. Abbreviations: al-anterior surstyle lobe, pl-posterior surstyle lobe, c-cercus, s-lateral sclerite of aedeagus, it-inner thorn on medial part of surstylus, dp-distal prolongation on anterior surstyle lobe, vms-ventral margin of surstylus, vr-ventral ridge of theca. Scale bar: 0.2 mm.