Review of the Eumerus tricolor species group (Diptera: Syrphidae) in Iran, with description of six new species Author Gilasian, Ebrahim A45912ED-BEEB-4733-AC6E-C22ACAFD6F63 Insect Taxonomy Research Department, Iranian Research Institute of Plant Protection (IRIPP), Agricultural Research, Education and Extension Organization (AREEO), Tehran, 19395 - 1454, Iran. ebrahimgilasian@gmail.com;gilasian@iripp.ir Author Steenis, Jeroen van C7F0D01C-B182-4B93-AF73-E4154367B535 Research Associate NBC-Naturalis, Leiden. % Hof der Toekomst 48, 3823 HX Amersfoort, The Netherlands. jvansteenis@syrphidaeintrees.com Author Parchami-Araghi, Mehrdad 2F788927-E377-471A-B658-9E86A41FC9CA Insect Taxonomy Research Department, Iranian Research Institute of Plant Protection (IRIPP), Agricultural Research, Education and Extension Organization (AREEO), Tehran, 19395 - 1454, Iran. maraghi20@yahoo.ca text European Journal of Taxonomy 2020 2020-11-02 722 106 152 journal article 10.5852/ejt.2020.722.1139 2118-9773 4239287 90B3B475-49D9-4869-8F5F-A788DB880356 Eumerus falsus Becker, 1922 Figs 3C , 6C , 13 E–F Eumerus rubriventris Becker, 1921: 67 (junior primary homonym of Eumerus rubriventris Macquart, 1829 ) Eumerus latifrons Sack, 1932: 403 . Eumerus zarudnyi Stackelberg, 1949: 431 . Eumerus rufiventris Van Der Goot, 1964: 218 . Diagnosis Eyes pilose ( Fig. 13 E–F), widely spaced, distance between eyes more than width of ocellar triangle ( Fig. 13E ); scutum and scutellum shiny metallic, weakly pollinose ( Fig. 3C ); scutum pilose with two bare longitudinal areas posteromedially; scutellum strongly arched basally in lateral view, more than half as high as long; legs predominantly black, tarsi and basal half of tibiae orange ( Fig. 6C ); metafemur slightly enlarged; metatarsus without dense thick black pile fringe; wing hyaline, almost entirely covered with microtrichia; abdominal terga II–III orange laterally. Fig. 9. Metaleg, lateral view. A . Eumerus atricolorus Gilasian & van Steenis sp. nov. , holotype, ♂ (HMIM). B . E. brevipilosus Gilasian & van Steenis sp. nov. , holotype, ♂ (HMIM). C . E. brevipilosus Gilasian & van Steenis sp. nov. , paratype, ♀ (HMIM). D . E. chekabicus Gilasian & van Steenis sp. nov. , holotype, ♂ (HMIM). E . E. hissaricus Stackelberg, 1949 , ♂, Ghoochan, Iran (HMIM). F . E. ovoformus Gilasian & van Steenis sp. nov. , holotype, ♂ (HMIM). Scale bars = 0.5 mm. Material examined Holotype ISRAEL ; “Carmel / 45576 IV // Typus [red label] // rubriventris / Becker // Eumerus falsus / Beck. / Stackelberg det. ‘[19]59 // Zool. Mus. / Berlin // Holotype / Eumerus rubriventris / Becker, 1921 / det J. van Steenis , 2016 [red label]”; ZMHB . Other material IRAN1 ♂ ; “ IRAN : Markazi prov. , Haftad / Gholleh Protected Area , / Chekab Valley , 2219m , / 34°07′05.3″N , 050°16′25.3″E , / 28.V–15.VI.2016 , Malaise trap / near pool , E. Gilasian & M. / Pargami- Araghi”; HMIM . Distribution Central Asia, Iran ( Lorestan prov. , Alishtar; Markazi prov. ), Israel , Transcaucasia, Turkey ( Stackelberg 1949 ; Peck 1988 ).