Eumerus tricolor ( Fabricius, 1798 )

Gilasian, Ebrahim, Steenis, Jeroen van & Parchami-Araghi, Mehrdad, 2020, Review of the Eumerus tricolor species group (Diptera: Syrphidae) in Iran, with description of six new species, European Journal of Taxonomy 722, pp. 106-152 : 140-145

Eumerus tricolor ( Fabricius, 1798)

Figs 8E , 13I

Syrphus tricolor Fabricius, 1798: 563 .

Diagnosis

Eyes pilose ( Fig. 13I ); males dichoptic, distance between eyes less than width of ocellar triangle; basoflagellomere black; scutum and scutellum shiny metallic, weakly pollinose; scutum entirely and evenly pilose, pile on scutum very short ( Fig. 8E ), shorter than combined length of two basal segments of arsita; legs predominantly black; metafemur slightly enlarged; tibiae black except for narrow basal orange margin; wing hyaline, entirely covered with microtrichia; abdomen predominantly orange.

Material examined

IRAN • 1 ♂; “IRAN, Kohkilouyeh & / Boyerahmad prov. , Yasuj / Tolegorgi, 2000 m, 4.v.1985 / H. Mirzayans & A. Hashemi // Eumerus tricolor / ( Fabricius, 1798)”; HMIM • 1 ♀; “Iran-Esfehan-Natanz / Bidhand / 33°29′43.9″N, 051°45′39.0″E / 2349m. / 2009.V.18 / Leg. E. Gilasian ”; JSA .

Distribution

Central Asia, Iran (Kohkilouyeh & Boyerahmad prov., Yasuj; Esfehan prov.), Transcaucasia ( Peck 1988; Barkalov & Gharali 2004; Gilasian & Barkalov 2004).

Figures

Fig. 8. A–E. Adult habitus, lateral view. F. Basicosta. A–D. Female. E–F. Male. A. Eumerus brevipilosus Gilasian & van Steenis sp. nov., paratype (HMIM). B. E. coeruleus (Becker, 1913), Ghoochan, Iran (HMIM). C. E. longitarsis Peck, 1979, Mian Jangal, Iran (JSA). D. E. persarum Stackelberg, 1961, Bazman, Iran (JSA). E. E. tricolor (Fabricius, 1798), Paleochori, Greece (JSA). F. E. tadzhikorum Stackelberg, 1949, Chekab Valley, Iran (JSA). Scale bars = 1.0 mm. Abbreviations: ac = anterodorsal costal setae; pc = posterodorsal costal setae.

Fig. 13. Head, ♂, dorsal view (A, C, E, G, I) and lateral view (B, D, F, H). A–B. Eumerus atricolorus Gilasian & van Steenis sp. nov., holotype (HMIM). C–D. E. brevipilosus Gilasian & van Steenis sp. nov., holotype (HMIM). E–F. E. falsus Becker, 1922, Chekab Valley, Iran (HMIM). G–H. E. chekabicus Gilasian & van Steenis sp. nov., holotype (HMIM). I. E. tricolor (Fabricius, 1798), Paleochori, Greece (JSA). Scale bars = 0.5 mm.