TY - BOOK AU - Knowlton, G. F. AU - Pack, H. J. TI - Notes on Utah syrphidae U1 - PA-C 595.77 D5 CY - PB - KW - Dípteros Syrphidae KW - Utah N1 - 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 ER -