Antenna. A Merodon opacus sp. nov., outer side, lateral view, male B Merodon opacus sp. nov., inner side, lateral view, male C Merodon opacus sp. nov., dorsal view, male D Merodon opacus sp. nov., outer side, lateral view, female E Merodon opacus sp. nov., inner side, lateral view, female F Merodon opacus sp. nov., dorsal view, female G Merodon disjunctus sp. nov., outer side, lateral view, male H Merodon disjunctus sp. nov., inner side, lateral view, male I Merodon disjunctus sp. nov., outer side, lateral view, female J Merodon defectus sp. nov., outer side, lateral view, male K Merodon defectus sp. nov., outer side, lateral view, female. Scale bar: 1 mm.