Updating the knowledge of the flower flies (Diptera: Syrphidae) from Chile: Illustrated catalog, extinction risk and biological notes Author Barahona-Segovia, Rodrigo M. Author Riera, Pamela pamela.riera1@gmail.com Author Pañinao-Monsálvez, Laura laurapaninao@gmail.com Author Guzmán, Vicente Valdés vicente.mvg@gmail.com Author Henríquez-Piskulich, Patricia phenriquezpi@student.unimelb.edu.au text Zootaxa 2021 2021-04-15 4959 1 1 178 journal article 7241 10.11646/zootaxa.4959.1.1 e9fcfa2b-72cd-4826-a7e5-c33cd37bf00e 1175-5326 4693464 3BAB6920-30AC-410A-995B-BBDA9E2A105D Microdon (Microdon) violaceus ( Macquart, 1842 ) Figs 148–150 Aphritis violaceus Macquart, 1842: 13 Type locality and data. Chile ” (T, , MNHNP ) . Material examined. Coquimbo : Hacienda El Mauro ( Fraga, 1937 ); Valparaíso : Catapilco , 14.XII.1965 , Leg. Thompson ( MNHNCL ) ; Quillota , 12.XII.1965 ; Leg. NN ( MNHNCL ) ; Quebrada Limache , 21.IX.1967 , Leg. N. Hichins ( MNHNCL ) ; Mantagua , 17.XII.1967 , Leg. Cerda ( MNHNCL ); 1♂ , Rodelillo , 12.X.1967 , Leg. NN ( MNHN- CL); Peñablanca , 30.X.1964 , Leg. NN ( MNHNCL ) ; Marga Marga , 08.I.1980 , Leg. Hichins ( MNHNCL ) ; Quebrada Las Palmas , XII.1964 , Leg. N. Hichins ( MNHNCL ) ; Cerro La Plata , Lliu Lliu , 18.IX.1969 , Leg. NN ( MNHNCL ) ; El Salto , 19.XII.1963 , Leg. Hichins ( MNHNCL ) ; El Peral , 24.X.1971 , Leg. P. Ramírez F ( MZUC ) ; Santo Domingo , 13.XI.1968 , Leg. Hichins ( MNHNCL ) ; Metropolitana : Caleu , TilTil , 05.XI.1994 , Leg. Cerda ( MNHNCL ) ; Cerro San Cristóbal , X.1885 , Leg. NN ( MNHNCL ) ; La Obra , 12.XI.1967 , Leg. NN ( MNHNCL ) ; El Canelo , 16.XI.1952 , Leg. Cerda ( MNHNCL ) ; El Manzano , 13.XII.2018 , Leg. Rodrigo Barahona Segovia ( PCRBS ) ; Río Colorado , 24.X.1934 , Leg. Cerda ( MZUC ) ; Puente El Yeso , 28.XII.1966 , Leg. NN ( MEUC ) ; Quebrada de la Plata , 510m , 7.XII.1996 , Leg. N. Hichins ( MEUC ) ; Los Queches , Aculeo , X.1964 , Leg. L.E. Peña ( MEUC ) ; O’Higgins : Peumo , XI.1952 , Leg. E.O.B. ( MZUC ) ; Maule : Las Nieves , Linares , 12.XI.1947 , Leg. L.E. Peña ( INIA ) ; Ñuble : Invernada , I.1971 , Leg. Ocare ( MEUC ) ; B. Forestal , 15.XII.1992 , Leg. Cerda ( MNHNCL ) ; Las Trancas , 26.X.2006 , Leg. M. Beeche ( SAG ) ; La Araucanía : Nahuelbuta National Park , 15.I.1978 , Leg. NN ( MNHNCL ) ; Traiguen ( Porter, 1927b ); Los Ríos : Santo Domingo , 13.XI.1988 , Leg. Krahmer ( SAG ) ; Fundo Caupolican , 30.X.1971 , Leg. Krahmer ( MNHNCL ) ; Valdivia , 20.X.1971 , Leg. E. Krahmer ( UACH ) ; Isla Mancera ( Porter, 1927a ) . FIGURE 148–151 . Microdon violaceus ( Macquart, 1842 ) : (148) couple mating, Laguna Acuelo (photo by Vicente Valdés); (149) dorso-lateral view, Cajón del Maipo, Santiago (photo by Rodrigo Barahona-Segovia); (150) larvae in a nest of Camponotus sp. (photo by César Martínez); (151) unknown larvae of Microdontinae subfamiliy with a centinel of Camponotus morosus , (Smith) , La Campana National Park (Photo by Francisco Rosales ). References. Macquart, 1842: 73 (desc.); Blanchard, 1852: 404 (desc.); Philippi, 1865: 733 (desc.); Williston, 1886: 310 (cat.); Reed, 1888: 297 (cat.); Lynch Arribálzaga, 1891: 129 (cat.); Kertész, 1910: 359 (cat.); Porter, 1927a: 83 (notes); Porter, 1927b: 122 (cat.); Porter, 1932: 190 (cat. & notes); Shannon & Aubertin, 1933: 124 (cat.); Mahan, 1935: 288 (desc.); Curran, 1936: 1 (key); Fraga, 1937: 198 (natural history); Curran, 1940: 1 (key); Curran, 1941: 248 (key); Stuardo, 1946: 122 (cat.); Fluke, 1957: 33 (cat.); Etcheverry, 1963: 62 (cat.); Thompson et al. , 1976: 46 .67 (cat.); Reemer & Ståhls, 2013: 139 (rev.); Marín-Armijos et al. , 2017: 172 (cat.). World distribution. Argentina , Ecuador and Chile . Chilean distribution. From Coquimbo to Los Ríos region ( Fig. 152 ). FIGURE 152 . Distribution map of Microdon violaceus ( Macquart, 1842 ) species in Chile. Altitudinal range. From coastal to highland ecosystems (5– 2,500 m .a.s.l.). Biology. Microdon violaceus larvae are associated with the native ant genus Camponotus May. Mahan (1935) describes the complete natural history and breeding habits of the larvae of this species. Males and females have dichoptic eyes ( Fig. 148 ). Two types of larvae of this subfamily have been reported in our citizen science program ( Figs 150–151 ), suggesting at least one new species of Microdontinae ( Fig. 151 ). New surveys should be conducted in order to improve the knowledge of this group. Conservation status. LC; EOO = 1,588,091 km 2 , AOO = 152 km 2 and 27 localities (or subpopulations).