FIGURE 2. Male genitalia. A, C, D in Three new species of the Merodon ruficornis group (Diptera: Syrphidae) discovered at the edge of its range

FIGURE 2. Male genitalia. A, C, D Merodon acutus sp. nov., B, E M. nigripodus. A epandrium, lateral view (extension marked with arrow), B surstylus, lateral view (extension marked with arrow), C hypandrium, lateral view (folded thecal ridge marked with arrow), D, E surstylus, ventral view. al—anterior surstyle lobe, c—cercus, il—interior accessory lobe, pl—posterior surstyle lobe, s—lateral sclerite of the aedeagus. Scale bar: 0.25 mm.