Valdiviomyia gigantea Thompson Thompson & Thompson 2017: 17 Updating the knowledge of the flower flies (Diptera: Syrphidae) from Chile: Illustrated catalog, extinction risk and biological notes Barahona-Segovia, Rodrigo M. Riera, Pamela Pañinao-Monsálvez, Laura Guzmán, Vicente Valdés Henríquez-Piskulich, Patricia Zootaxa 2021 2021-04-15 4959 1 1 178 8FLBD Thompson Thompson [151,560,463,490] Insecta Syrphidae Valdiviomyia Animalia Diptera 67 68 Arthropoda species gigantea   Figs 93–96     Valdiviomyia giganteaThompson in  Thompson & Thompson 2017: 17     Typelocality and data.“ Valdivia, Chile” (H, ♀, MNHNCL).  Material examined.La Araucanía:  1♂, Condominio Amulafquen, Pucón,  15.X.2019, Leg. Miguel Mellado( ZFMK);  Los Ríos: 1♂, Province of Valdivia, Valdivia,  29.IX.1989, Leg. E. Krahmer( PCBRS);  1♀, Province of Valdivia, Valdivia,  1.X.1990, Leg. E. Krahmer( UACH);  1♀, Santo Domingo, Valdivia,  9.X.1982, Leg. E. Krahmer( UACH);  1♂, 1♀, Santo Domingo, Valdivia,  1.XI.1983, Leg. E. Krahmer( PCRBS);  2♂, 4♀, Santo Domingo, Valdivia,  1.XI.1983, Leg. E. Krahmer( UACH);  2♂, Valdivia.  18. IX.1980, Leg. Ramón Rebolledo( PCRR).   References. Thompson & Thompson, 2017: 16(desc. & key).  World distribution. Chile.  Chilean distribution.From La Araucaníato Los Ríos region( Fig. 103).  Altitudinal range.From coastal to inland valley ecosystems ( 5– 250 m.a.s.l.).   Biology and notes.  Valdiviomyia giganteais the second-largest flower fly of Chileand associated with Valdivian evergreen and Nothofogusforests. Other data of its biology and ecology remain unknown.  Conservation status.EN under B1ab (iii) + 2ab (iii) using EOO = 217 km 2, AOO = 12 km 2and three localities (or subpopulations). 3080454342 [151,843,150,177] MNHNCL Chile Valdivia 68 69 1 1 holotype 3080455349 2019-10-15 ZFMK Leg. Miguel Mellado Pucon Condominio Amulafquen 68 69 1 1 3080454439 [264,1241,222,249] 1989-09-29 PCBRS Leg. E. Krahmer Valdivia Province of Valdivia 68 69 1 1 Los Rios 3080455852 1990-10-01 UACH Leg. E. Krahmer Valdivia Province of Valdivia 68 69 1 1 Los Rios 3080454654 1982-10-09 UACH Leg. E. Krahmer Valdivia Santo Domingo 68 69 1 1 Los Rios 3080455069 [268,1129,294,321] 1983-11-01 PCRBS Leg. E. Krahmer Valdivia Santo Domingo 68 69 2 1 1 Los Rios 3080454534 1983-11-01 UACH Leg. E. Krahmer Valdivia Santo Domingo 68 69 6 4 2 Los Rios 3080455480 [694,1360,330,357] 1980-09-18 PCRR Leg. Ramon Rebolledo Valdivia. 68 69 2 2 Los Rios