12 CONTENTS OF VOL. VII 



the extensive material presented by the authors to the Hope 

 Department. 



2. Discussion on the above, by Mr. A. Harrison, F.L.S., F.E.S., 



and others. 



3. Abstract of Birds as a Factor in the production of Mimetic 



Resemblances in Butterflies, by Guy A. K. INIarshall (Memoir 

 No. 8). 



4. Discussion of the above by W. E. Sharp, Dr. T. A. Chapman, 



W. J. Kaye, Commander J. J. Walker, and others. 



b. Apr. 7, 1909. — I. An exhibition of mimetic Oriental Blaltidae and 



their Coleopterous models, by R. Shelford. 



2. Abstract of On Reciprocal Mimicry : a rejoinder to Dr. F. A. 



Dixey, by G. A. K. Marshall, a continuation of the discussion 

 on the Miillerian theory. 



3. Discussion of the above by C. J. Gahan, S. A. Neave, J. W. 



Tutt, and others. 



c. May 5, 1909. — I. The Oestrid fly of the Rhinoceros, by S. A. Neave. 



M.A., B.Sc, F.E.S., Magdalen College, Oxford. 

 2. The forms of Danaida chrysippus from Egypt and the Sudan 

 (Jan.-Feb., 1909), by G. B. Longstaff, D.:^!., F.R.C.P., F.E.S., 

 New College, Oxford. 



d. June 2, 1909. — I. A migration of Ladybirds observed 40 miles above 



Khartum (Feb. 16, 1909), by Dr. G. B. Longstaff. 



2. An Arabian species of Scarabaeus {S. compressicornis) taken in 



Egypt, near the Sphinx, by Dr. G. B. Longstaff. 



3. Exhibition of a carved Egyptian scarab obtained by Dr. Long- 



staff in Upper Egypt, by Professor E. B. Poulton. 



4. Exhibition of species of two genera of Coccinellidae captured 



in coitu, by Professor E. B. Poulton. The species were Adalia 

 obliierata and Halyzia \^-guilaia, beaten out of a fir-tree at 

 Tubney by Joseph CoUins of the Hope Department (Aug. 5, 

 1908). 



5. Exhibition of Diptera from Oxford and the New Forest, bred 



or captured by A. H. Hamm, of the Hope Department, by 

 Professor E. B. Poulton. 



6. Exhibition of Castnia therapon, a rare moth bred from a S. 



American orchid and captured by Dr. A. R. Wallace in his 

 orchid-house at Broadstone, Dorset, by Professor E. B. Poulton. 



