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 4239287 90B3B475-49D9-4869-8F5F-A788DB880356 Eumerus coeruleus ( Becker, 1913 ) Figs 3E , 5B , 6E , 8B , 14 C–D, 15A–B, 18D, 20D, 22D Lampetia coerulea Becker, 1913: 602 . Diagnosis Eyes pilose ( Fig. 14 C–D), males dichoptic, distance between eyes in males less than width of ocellar triangle ( Fig. 15 A–B); face with whitish pile; ocellar triangle equilateral ( Fig. 15A ); basoflagellomere orange; scutum and scutellum with dense and long whitish pile ( Figs 6E , 8B ), weakly pollinose; pleura above metacoxa bare; legs long pilose; tarsi and basal half of tibiae orange; metafemur enlarged; metatarsus without dense thick black pile fringe; wing hyaline, entirely covered with microtrichia; vein R 4+5 deeply sinuate ( Fig. 5B ); abdominal terga II–IV orange laterally; terga II–III with distinct median black vitta ( Fig. 3E ); male genitalia as in Figs 18D , 20D , 22D . Material examined Holotype IRAN • ♂ ; “P. Beluchist. / 13.V.1901 // Lampetia coerulea Beck. / det. Becker // Holotypus Eumerus / coeruleus / Becker, 1913 [red label]”; ZISP . Other material IRAN • 1 ♀ ; “ IRAN : Khorasan prov. , Ghoochan / Emamgholi , Chovinli / 37°25′44.1″N , 058°31′57.3″E , / 1746 m .; 30.v.2006 / E. Gilasian // Eumerus coeruleus / ( Becker, 1913 )”; HMIM • 1 ♀ ; same collection data as for preceding; JSA • 23 ♂♂ , 59 ♀♀ ; “ IRAN : Markazi prov. , Haftad / Qolleh Protected Area , / Chekab Valley , 2219 m , / 34°07′0.5″N , 050°16′25.3″E , / 25.v–15.vi.2016 , Malaise trap / near pool , E. Gilasian & M. / Parchami-Araghi // Eumerus coeruleus / ( Becker, 1913 )”; HMIM • 2 ♂♂ ; same collection data as for preceding; JSA . Distribution Central Asia, Iran (Sistan & Balouchestan prov., Kuh-e Taftan; Khorasan and Markazi provinces) ( Peck 1988 ).