TY  - BOOK
AU  - Shannon, Raymond C.
TI  - The crysotoxine syrphid-flies
U1  - PA-C 595.77 D5 
CY  - 
PB  - 
KW  - Dípteros  Syrphidae  Crysotozum
N1  - Sobretiro de: Proceedings U. S. National Museum 69 (2637): 1-20                 Encuadernado con: Notes on american two-winged flies of the family sapromyzidae/ by J. R Malloch                                74-58
ER  -