Fig. 18 in Review of the Eumerus tricolor species group (Diptera: Syrphidae) in Iran, with description of six new species

Fig. 18. Epandrium, cercus and surstylus, lateral 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. coeruleus (Becker, 1913), Chekab Valley, Iran (HMIM). E. E. ovoformus Gilasian & van Steenis sp. nov., holotype (HMIM). F. E. richteri Stackelberg, 1960, Lar, Iran (HMIM). Scale bars = 0.1 mm.