macellaria (Fabricius)

Musca macellaria Fabricius, 1775: 776 .

Cochliomyia macellaria: Johnson 1924: 89 [records]; Curran 1932: 362 [records]; Curran 1934: 166 [records]; Linsley & Usinger 1966: 172 [checklist]; James 1966a: 476 [records]; James 1970: 6 [catalogue]; Linsley 1977: 42 [checklist]; Peck 1996: 122 [mode of introduction]; Peck et al. 1998: 228 [introduced species]; Causton et al. 2006: 133 [introduced species]; Sinclair 2009: 108 [remarks]; Tantawi & Sinclair 2013: 238 [key, records].

Callitroga macellaria: James 1947: 65 [myiasis].

Musca phauda (Walker, 1849: 896) . Johnson 1924: 89 [syn. of C. macellaria]; Dear 1985: 142 [remarks].

Lucilia quadrisignata Thomson, 1869: 544 . Dear 1985: 143 [remarks].

Chrysomyia quadrisignata: Coquillett 1901a: 375 [records]; Johnson 1924: 89 [syn. of C. macellaria].

Distribution. Cryptogenic. Neactic, Neotropical; Galápagos: Baltra, Española, Floreana, Genovesa, Isabela, Pinzón, San Cristóbal, Santa Cruz, Santa Fé, Santiago.

Remarks. This species is known as the “secondary screw-worm fly” (Johnson 1924). Baumgartner & Greenberg (1984) observed that populations of Co. macellaria were suppressed as populations of Chrysomya albiceps increased in Peru. Throughout the New World, studies have shown that as introduced species of Chrysomya increase, sympatric populations of the native calliphorid Co. macellaria decrease (Wells & Kurahashi 1997). The latter species was first recorded from the islands in 1835 and last collected in 1985 (Tantawi & Sinclair 2013), which overlaps with the first records of Chrysomya .