New Dolichopodidae of western North America /
Harmston, F. C.
New Dolichopodidae of western North America / F. C. Harmston and G. F. Knowlton - [S.l. : s.n.], 1942 - 17-22 p. : ill. ; 26 cm - Annals of the Entomological Society of America ; 35 .
New Dolichopodidae of western North America / F. C. Harmston and G. F. Knowlton - [S.l. : s.n.], 1942 - 17-22 p. : ill. ; 26 cm - Annals of the Entomological Society of America ; 35 .