90 THE ENTOMOLOGIST. 



apple trees, for, be it noted, no garden was ever better worked 

 for Diptera than Verrall's in Newmarket, and he was unable to 

 record thence ('Brit. Flies,' p. 666) a single Platypezid, I believe 

 simply because it had been but recently converted from meadow- 

 land with, consequently, no ligneous fungi. And it is remarkable 

 how closely associated this family appears to be with old gardens, 

 as my notes thereon (' Ent. Mo. Mag.,' 1901, p. 281) at Felden 

 in Hertfordshire fully attest ; though my capture of a couple of 

 the lovely males of Callimyia amoena, Mg., at West Leake, near 

 Nottingham, on August Sth, 1914, in woods far from any habita- 

 tion show they are not confined thereto, no less than that effected 

 by Dr. Vinter and myself of Platypeza consohrina, Zett., and 

 P. picta, Mg., on October Sth, 1916, in Parham Wood, near 

 Framlingham. Both these latter flies were beaten from horn- 

 beam bushes, and both were additions to my list of " The 

 Diptera of Suffolk " (' Trans. Norf. Nat. Soc.,' 1915, Suppl., 

 pp. 1-180), which now reaches the total of 1633 diiTerent kinds. 



Monks Soham House, near Framlingham, Suffolk, 

 January 10th, 1918. 



NOTES ON THE BUTTERFLIES OF THE ANCPwE 



DISTRICT. 



By Capt. G. L. Keynes, R.A.M.C. 



The following notes will serve to supplement Capt. H. D. 

 Smart's " Notes on the Lepidoptera of the British Line in 

 France," though my observations must not be taken as exhaus- 

 tive, even for the limited district to which they refer. My duties 

 have kept me for the greater part of this year in the Ancre 

 district, but during the earlier months I was too busy to be able 

 to take much notice of the butterflies in the neighbourhood. It 

 was not until August that I sent for collecting apparatus, and I 

 did so then because I hoped I should meet with Agriades corydon 

 on the chalk hills which rise on either side of the River Ancre. 

 But in this I was disappointed, for neither this species nor 

 A. hellargus were to be found ; this can be accounted for by the 

 complete manner in which the land has been cultivated. Some 

 other species were, however, very plentiful. 



Of the Hesperiida I found in August only two species, 

 Adopaa lineola and Thymelicus action. The latter was difficult 

 to get, and by the end of August had disappeared completely. 

 On the other hand, the females of A. lineola were fresh and 

 plentiful until well on into September, though the males had 

 disappeared by that time. 



Papilio machaon was very plentiful from July onwards, and 

 was still to be seen at the end of September. 



