Wing of male of Drapetis scissa from Steyskal and Knutson (1981, fig. 7) Empididae,
Manual of Nearctic Diptera
, Ottawa, p.607-624, (1981)
[1].

Wing of female of Platypalpus trivialis from Steyskal and Knutson (1981, fig. 6) Empididae,
Manual of Nearctic Diptera
, Ottawa, p.607-624, (1981)
[1].

Wing of female of Megagrapha pubescens from Steyskal and Knutson (1981, fig. 5) Empididae,
Manual of Nearctic Diptera
, Ottawa, p.607-624, (1981)
[1].

Wing of female of Micrempis testacea from Steyskal and Knutson (1981, fig. 4) Empididae,
Manual of Nearctic Diptera
, Ottawa, p.607-624, (1981)
[1].

Wing of male of Tachypeza winthemi from Steyskal and Knutson (1981, fig. 3) Empididae,
Manual of Nearctic Diptera
, Ottawa, p.607-624, (1981)
[1].

Wing of male of Hilarimorpha ditissa from Webb (1981, fig. 2) Hilarimorphidae,
Manual of Nearctic Diptera
, Ottawa, p.603-605, (1981)
[2].

Wing of male of Chrysanthrax cypris from Hall (1981, fig. 48) Bombyliidae,
Manual of Nearctic Diptera
, Ottawa, p.589-602, (1981)
[3].

Wing of male of Thyridanthrax fenestratoides from Hall (1981, fig. 47) Bombyliidae,
Manual of Nearctic Diptera
, Ottawa, p.589-602, (1981)
[3].

Wing of male of Poecilanthrax willistonii from Hall (1981, fig. 46) Bombyliidae,
Manual of Nearctic Diptera
, Ottawa, p.589-602, (1981)
[3].

Wing of male of Villa lateralis from Hall (1981, fig. 45) Bombyliidae,
Manual of Nearctic Diptera
, Ottawa, p.589-602, (1981)
[3].