Gagné, R.J., 2010. Update for a catalog of the Cecidomyiidae (Diptera) of the world. Digital version 1. Available at: http://www.ars.usda.gov/SP2UserFiles/Place/12754100/Gagne_2010_World_Catalog_Cecidomyiidae.pdf.

Gagné, R.J., 1979. A hypothesis for the distribution of holarctic groups of fungus gnats (Diptera: Mycetophilidae). Journal of the New York Entomological Society, 86, p.289. Available at: http://www.online-keys.net/sciaroidea/1971_80/Gagne_1979_holarctic_distribution.pdf.

Gagné, R.J., 1980. Mycetophilidae and Sciaridae (Diptera) in Mexican amber. PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON, 82, p.152. Available at: http://www.online-keys.net/sciaroidea/1971_80/Gagne_1980_Mexican_amber_Mycetophilidae.pdf.

Gagné, R.J., 1981. A monograph of Trichonta with a model for the distribution of Holarctic Mycetophilidae (Diptera). U S DEPARTMENT OF AGRICULTURE TECHNICAL BULLETIN, pp.1-64.

Gagné, R.J., 1975. A revision of the Nearctic species of the genus Phronia (Diptera: Mycetophiilidae). Transactions of the American Entomological Society, 101, pp.227-318. Available at: http://www.online-keys.net/sciaroidea/add01/Gagne_1975_Phronia.pdf.