Fig. 12. Sternum IV in Review of the Eumerus tricolor species group (Diptera: Syrphidae) in Iran, with description of six new species

Fig. 12. Sternum IV, ♂, ventral view. A. Eumerus atricolorus Gilasian & van Steenis sp. nov., holotype (HMIM). B. E. brevipilosus Gilasian & van Steenis sp. nov., holotype (HMIM). C. E. chekabicus Gilasian & van Steenis sp. nov., holotype (HMIM). D. E. hissaricus Stackelberg, 1949, Ghoochan, Iran (HMIM). E. E. pilosipedes Gilasian & van Steenis sp. nov., holotype (HMIM). F. E. vallicolus Gilasian & van Steenis sp. nov., holotype (HMIM). Scale bars = 0.5 mm.