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INSECTA SAUNDERSIANA: 



CHARACTERS 





UNDESCRIBED INSECTS 



THE COLLECTION 



WILLIAM WILSON SAUNDERS, ESQ., 



F.R.S., F.L.S., kQ. 



Vol. I. 

 DIPTERA.— By FRANCIS WALKER, F.L.S. 



LONDON : 

 JOHN VAN VOORST, PATERNOSTER ROW 



M.DCCC.LVI. 



