The Robinson expeditions to spout run, Arlington County, Virginia: Notes on Gymnopternus (Diptera : Dolichopodidae)DOI: info:10.4289/07-068.562.1v. 110No. 3ENTOMOL SOC WASHINGTON562–576
Robinson, Harold E. and Knowles, M. 2008. "The Robinson expeditions to spout run, Arlington County, Virginia: Notes on Gymnopternus (Diptera : Dolichopodidae)." Proceedings of the Entomological Society of Washington, 110, (3) 562–576. https://doi.org/10.4289/07-068.562.1.