An annotated checklist of the Diptera of the Galápagos Archipelago (Ecuador) Author Sinclair, Bradley J. 0000-0001-6413-1606 bradley.sinclair@inspection.gc.ca text Zootaxa 2023 2023-05-09 5283 1 1 102 http://dx.doi.org/10.11646/zootaxa.5283.1.1 journal article 30017 10.11646/zootaxa.5283.1.1 02c7ce64-10d5-4a88-9844-0570c9a54e54 1175-5326 7912667 FFACFB44-873F-4C12-90CF-D8442910659A obesa (Fabricius) Syrphus obesa Fabricius, 1775: 763 . Ornidia obesa : Peck 1996: 122 [mode of introduction]; Peck et al . 1998: 228 [introduced species]; Causton et al . 2006: 134 [introduced species]; Sinclair et al . 2016: 84 [review]; Marín-Armijos et al . 2017: 173 [checklist]. Distribution. Introduced. Cosmopolitan; Galápagos: Isabela, San Cristóbal , Santa Cruz (ICCDRS). Remarks. This species has spread extensively throughout the warmer regions with commerce and is known to breed in human and other semiliquid wastes ( Thompson 1991 ). This species was recently introduced to the Galápagos and adults have been recorded on flowers of Varronia leucophlyctis (Hook.f.) Andersson and Waltheria ovata Cav. ( Hervías-Parejo & Traveset 2018 ) .