Notes on Utah syrphidae /
Knowlton, G. F.
Notes on Utah syrphidae / by G. F. Knowlton and H. J. Pack -
Sobretiro de Pan-Pacific entomologist 6 (4): 182-189, 1930. Encuadernado con: Notes on american two-winged flies of the family sapromyzidae/by J. R. Malloch 74-61
201759
Dípteros Syrphidae--Utah
PA-C 595.77 D5
Notes on Utah syrphidae / by G. F. Knowlton and H. J. Pack -
Sobretiro de Pan-Pacific entomologist 6 (4): 182-189, 1930. Encuadernado con: Notes on american two-winged flies of the family sapromyzidae/by J. R. Malloch 74-61
201759
Dípteros Syrphidae--Utah
PA-C 595.77 D5
