FIGURES 20–25 in Updating the knowledge of the flower flies (Diptera: Syrphidae) from Chile: Illustrated catalog, extinction risk and biological notes

FIGURES 20–25. Chamaesphegina argentifascies Shannon & Aubertin, 1933: (20) male, dorsal view; (21) male, lateral view. Scale bars = 1.2 mm (photos by Vicente Valdés). Chamaesphegina macra: (22) male, dorsal view and (23) lateral, view (photo by Zöe Simmons; ZMHB). Scale bars = 1 mm. Notiocheilosia nitescens Shannon & Aubertin, 1933: (24) lateral view and (25) dorsal view. Scale bars = 1 mm (photos by Vicente Valdés).Published as part of Barahona-Segovia, Rodrigo M., Riera, Pamela, Pañinao-Monsálvez, Laura, Guzmán, Vicente Valdés & Henríquez-Piskulich, Patricia, 2021, Updating the knowledge of the flower flies (Diptera: Syrphidae) from Chile: Illustrated catalog, extinction risk and biological notes, pp. 1-178 in Zootaxa 4959 (1) on page 25, DOI: 10.11646/zootaxa.4959.1.1, http://zenodo.org/record/469346