The genus Coenosia Meigen in Iran, with a key to species and description of a new species (Diptera: Muscidae) Author Parchami-Araghi, Mehrdad Insect Taxonomy Research Department, Iranian Research Institute of Plant Protection (IRIPP), Agricultural Research, Education and Extension Organization (AREEO), Tehran 19395 - 1454, Iran. & Canadian National Collection of Insects, Arachnids and Nematodes, Agriculture and Agri-Food Canada, 960 Carling Avenue, K. W. Neatby Building, Ottawa, ON, K 1 A 0 C 6, Canada. Author Pont, Adrian C. Oxford University Museum of Natural History, Parks Road, Oxford, OX 1 3 PW, UK. muscidman 2 @ gmail. com Author Gilasian, Ebrahim 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 text Zootaxa 2020 2020-11-11 4877 3 559 574 journal article 7949 10.11646/zootaxa.4877.3.8 95a757b3-6441-470f-821d-3dbaec156578 1175-5326 4424383 895A0F70-0F33-4627-9D23-5E1FE1346420 Key to Iranian species of Coenosia Meigen, 1826 The following key is primarily based on the key by Gregor et al . (2016) and includes all seven species known from Iran including the newly described C. persica Pont & Parchami-Araghi , sp. nov. 1 Hind tibia with a median anterodorsal and a true anterior seta, placed close to each other............................ 2 - Hind tibia with a median anterodorsal and anteroventral setae that are not close to each other......................... 5 2 Body shining black ( Fig. 20 ); male cercal plate subelliptical ( Fig. 27 ); male sternite 5 horseshoe-like ( Fig. 26 ).............................................................................................. C. atra Meigen, 1830 - Body not shining, weakly dusted; male sternite 5 not as above................................................. 3 3 Parafacial at least as wide as width of postpedicel; length of longest aristal hairs equal to or longer than width of postpedicel ( Fig. 25 ); male cercus and surstylus elongate ( Figs 42–43 ); male sternite 5 V-shaped ( Fig. 41 )...................................................................................................... C. tigrina ( Fabricius, 1775 ) - Parafacial visibly narrower than width of postpedicel; longest aristal hairs at most as long as postpedicel; male terminalia and sternite 5 not as above................................................................................. 4 4 Aristal hairs longer than greatest diameter of arista; abdominal tergites 3–4 with paired round spots and a narrow median stripe; femora, antenna and palpus black in both sexes ( Fig. 22 ); male cercal plate forked apically ( Fig. 33 ); male surstylus blunt, setose on inner side ( Fig. 34 ); male sternite 5 broadened basally ( Fig. 32 ).................... C. humilis Meigen, 1826 - Arista short pubescent; abdominal tergites without spots; male femora, antenna and palpus yellow ( Fig. 21 ); male cercal plate apically truncated and spinose ( Fig. 30 ); surstylus sword-shaped, as long as cercus ( Fig. 31 ); male sternite 5 basally broad ( Fig. 29 ); female with femora, antenna and palpus black............................... C. attenuata Stein in Becker, 1903 5 Two proepisternal setae; abdominal tergites entirely dark; fore femur entirely dark, mid and hind femora yellow in apical half; palpus and abdominal tergites dark ( Figs 12–13 ); male cercal plate elongate, tapered, without apical spines; male surstylus shorter than cercus ( Figs 15–16, 18–19 ); male sternite 5 basally narrowed, almost V-shaped ( Figs 14, 17 )............................................................................... C. persica Pont & Parchami-Araghi , sp. nov. - Only 1 proepisternal seta; abdominal tergites partly yellow ( Figs 23–24 ); male cercal plate oval ( Figs 36, 39 ), moderately curved anteriorly ( Figs 37, 40 ); other characters not as above.................................................. 6 6 Mid femur usually with 2 posterior setae, and in basal half with 3–4 strong posteroventral setae; frontal vitta wholly black; male with hairs on outer (posterior) surface of fore tarsomeres conspicuous, at least as long as depth of tarsomeres; hind femur with a complete row of anteroventral setae and with several posteroventral setae on a little over basal half ( Fig. 24 ); male surstylus thumb-shaped; distiphallus bent right angularly ( Fig. 37 ); sternite 5 ( Fig. 35 ).............. C. nigridigita Rondani, 1866 - Mid femur with 1 posterior preapical seta, and in basal half with only 1–2 posteroventral setae; frontal vitta distinctly reddish to yellow in front, before lunule; male with hairs on outer (posterior) surface of fore tarsomeres short as usual; hind femur with only 2-3 anteroventral setae, confined to apical half, and no posteroventral setae ( Fig. 23 ); male surstylus slightly dilated apically; distiphallus bend obtuse ( Fig. 40 ); sternite 5 ( Fig. 38 ).................... C. testacea ( Robineau-Desvoidy, 1830 )