The Dolichopodidae (Diptera) of Montserrat, West Indies Author Runyon, Justin B. Rocky Mountain Research Station, USDA Forest Service, 1648 S. 7 th Avenue, Bozeman, Montana 59717, USA & Montana Entomology Collection, Montana State University, Room 50 Marsh Laboratory, Bozeman, Montana 59717, USA https://orcid.org/0000-0002-0271-0511 jrunyon@montana.edu text ZooKeys 2020 966 57 151 http://dx.doi.org/10.3897/zookeys.966.55192 journal article http://dx.doi.org/10.3897/zookeys.966.55192 1313-2970-966-57 B18DEB582C8F4F95B7EF3BECC9F4D4B7 9E8EAAF1A28A5D6BA36B2D363A1BA200 Condylostylus longicornis (Fabricius) Musca longicornis Fabricius, 1775: 783. Psilopus radians Macquart, 1834: 450. Psilopus nigripes Macquart, 1842: 181. Psilopus flavimanus Macquart, 1842: 182. Psilopus chrysoprasi Walker, 1848-1849: 646. Psilopus metallifer Walker, 1848-1849: 647. Psilopus zonatulus Thomson, 1869: 509. Psilopus trichosoma Bigot, 1890: 285. Psilopus ciliipes Aldrich, 1901: 355. Condylostylus dentaticauda Van Duzee, 1933b: 66. Material examined. Dominica : 3 ♂, 2 ♀, near Layou, 27 January-12 February 1964, H. Robinson (USNM); 2 ♂, 1 ♀, Springfield Estate, yellow pans, 1-3 June 2011, M.A. & L.L. Ivie. Montserrat : 13 ♂, 9 ♀, Woodlands, Riverside House, 10-12 January 2002, Malaise trap, Ivie, Marske & Puliafico; 4 ♂, 5 ♀, same as previous, 5-7 January 2002; 5 ♂, 4 ♀, trail to Fairy Walk, 15 August 2005, yellow pan trap, V.G. Martinson; 1 ♂, Sweetwater Ghaut, 1 August 2005, yellow pans, V.G. Martinson; 1 ♂, 1910, HAB [remainder of label illegible] (MTEC, USNM). Distribution. Condylostylus longicornis is widespread in the New World tropics and subtropics and has been readily transported by humans to other biogeographic realms. Recorded from the southeastern USA, Caribbean, Central America, tropical South America (including Galapagos Islands), and introduced to French Polynesia and Hawaii ( Bickel 2002 ), Australia, China, India, Indonesia, Papua New Guinea, Philippines, and Sri Lanka ( Yang et al. 2006 ), and United Arab Emirates ( Naglis and Bickel 2017 ). Remarks. Robinson (1975) treated this species as Condylostylus chrysoprasi (Walker). The synonymy is from Bickel (2002) .