FIGURE 24 Male genitalia. Hypandrium. A in Systematic position and composition of Merodon nigritarsis and M. avidus groups (Diptera, Syrphidae) with a description of four new hoverfLies species

FIGURE 24 Male genitalia. Hypandrium. A) Merodon longisetus sp. n., lateral view, B) Merodon longisetus sp. n., ventral view, C) Merodon toscanus, lateral view, D) Merodon toscanus, ventral view. Scale: 0.5 mm. l–lingual, s–lateral sclerite of aedeagus, th–subapical thorn on ventral margin.