stigmatias Loew

Euxesta stigmatias Loew, 1868: 310 . Causton et al. 2006: 135 [introduced species].

Distribution. Introduced. Nearctic, Neotropical; Galápagos: Floreana (ICCDRS), Isabela (ICCDRS), San Cristóbal, Santa Cruz, Seymour.

Material examined. Galápagos: San Cristóbal: Cerro Mundo, guava thicket, 550 m, 13–23.ii.1989, Malaise, S.B. Peck & B.J. Sinclair (4 ♀, CNC) . Santa Cruz: Los Gemelos, 600 m, Scalesia forest, 31.i.1989, B.J. Sinclair (3 ♀, CNC) ; El Cascajo, Finca Aguirre, 11.xi.2001, B.J. Sinclair (3 ♁, CNC) . Seymour: MV-light, 23.i.1989, B.J. Sinclair (1 ♁, 2 ♀, CNC) .

Remarks. This species is known as the corn silk fly and was first recorded from the islands in the 1980s. It is known from the arid to humid zones.

undetermined species

Distribution. Not determined. Galápagos: San Cristóbal.

Material examined. Galápagos: San Cristóbal: Casetta, 560 m, pampa, dung trap, 16–19.ii.1989, B.J. Sinclair (1 ♁, CNC); same data except, dry Scalesia, 400 m, 23.ii.1989 (1 ♀, CNC) ; Cerro Mundo, guava thicket, 550 m, 13–23.ii.1989, MT, S.B. Peck & B.J. Sinclair (1 ♀, CNC); Baquerizo, arid zone, 10 m, MT, 11–23.ii.1989, S. Peck (2 ♁, 5 ♀, CNC); same data except, 150 m, 12–13.ii.1989 (3 ♁, 2 ♀, CNC); 11.x.2001, A. Tye, ex. Calandrinia galapagosa (5 ♁, 1 ♀, ICCDRS) .

Remarks. Adults of this species were reared from stems of the rare plant Calandrinia galapagosa H. St. John.