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 Subgenus Psilopelmia Enderlein undetermined species (P.H. Adler pers. comm.). Simulium ( Psilopelmia ) ochraceum : Adler & Crosskey 2018: 82 [catalogue]. Simulium bipunctatum Malloch, 1912a: 650 . Abedrabbo et al . 1993: 108 [first record]; Gerecke et al . 1995: 128 [aquatic invertebrates]; Crosskey & Shelley 1994: 21 [review]; Peck 1996: 122 [mode of transportation]; Peck et al . 1998: 228 [introduced species]; Causton et al . 2006: 135 [introduced species]; Sinclair 2009: 113 [introduced species]. Distribution. Not determined; Galápagos: San Cristóbal . Remarks. This species is believed to have been introduced with agricultural products in 1989 and is presently found in large numbers in La Toma and other streams (Abedrabbo et al . 1993; Gerecke et al . 1995 ). This species reportedly bites human ( Crosskey & Shelley 1994 ). This blackfly is only permanently established on San Cristóbal , but during the 1998 El Niño event, it became temporarily established on three other islands ( Roque-Albelo & Causton 1999 ).