INSECTA SAUNDERSIANA 



CHAEACTERS 



UNDESCRIBED INSECTS 



THE COLLECTION 



WILLIAM WILSON SAUNDERS, ESQ., 



F.R.S., F.L.S., &c. 



Vol. I. 

 DIPTERA.— By FRANCIS WALKER, F.L.S. 



LONDON : 



JOHN VAN VOORST, PATERNOSTER ROW. 



M.DCCC.LVI. 



-1' 



