( lix ) 



Gynandromorphous Ants. — Mr. Donisthorpe also showed 

 two examples of Formica sanguinea, Latr., one being half (^ 

 half ^, and the other, half $ half $, taken in Bewdley Forest 

 in July; and of one example of Myrmica scabrinodis, Nyl., 

 half $ half ^, taken by Mr. Dollman, at Ditchling, in 

 September last. 



Papers. 



Dr. T. A. Chapman, M.D., F.Z.S., communicated a further 

 series of photographs (see PI. B) and " ISTotes on the Ancillary 

 Appendages of species of Pleheius, to illustrate the relation- 

 ships of Pleheius argus (aegon)." 



Mr. R. Shelpord, M.A., F.L.S., F.Z.S., communicated a 

 paper " On two Eemarkable Forms of Mantid Oothecae." 



Mr. C. T. Pead communicated " Notes on some Rare or 

 Little-known South African Homoptera," with examples of 

 the sevei-al species. 



Mr. W. F. Rosenberg then read the following notes on 



THE LIABILITY OF BUTTERFLIES TO ATTACKS BY BIRDS 

 AND LIZARDS. 



" I have been greatly interested in reading Mr. Guy A. K. 

 Marshall's paper on ' Birds as a Factor in the Production of 

 Mimetic Resemblance among Butterflies,' which appears in 

 the last part of the Society's Transactions. 



" I have frequently seen in both Colombia and Ecuador birds 

 attack butterflies on the wing. I must, however, at once 

 confess that I have no definite data as to the species of either 

 the birds or the butterflies in question. As a matter of fact, 

 I am one of those people who, as Mr. Marshall suggests, 

 thought that it was such an ordinary everyday occurrence as 

 not to be worth noting in detail ; and it comes upon me as 

 a surprise that the frequency of such attacks should be 

 questioned. 



' ' The collector in the tropics finds himself confronted with 

 such an enormous amount of work in actual collecting, and 

 with such a wide field for observation, that it becomes im- 

 practicable to take notes of all the phenomena that come 

 under his notice. But I am quite certain that if collectors 



