344 '^HE PLACE 01- MIMICRY 



seemed at once to call for tlie Miillcrian rather than the 

 Batcsian intcri)rctation. A fine instance is to be found 

 in tlie wonderful African i^roup shown by Mr. G. A. K. 

 Marshall to convero^e towards the distasteful Lvcid beetles. 

 It is briefly described on p. 276. 



The chief lines of indirect evidence in favour of the 

 Miillcrian interpretation are due to the investigations of 

 Dr. I\ A. Dixi'y. They are briefly set forth in the two 

 followino- Sections. These will be succeeded by three 

 further Sections in which additional lines of indirect 

 evidence will be considered. The sixth Section from the 

 present point, Section 13, will l)e devoted to the discussion 

 of counterbalancing evidence which is believed to support 

 the Batesian interpretation. 



8. Diaposonatic Rcscynblancc ; Reciprocal ]]'arnin(:^ 

 Colours. — Dr. F. A. Dixey first recognized the fact that 

 in certain cases of suj^erficial resemblance the butterfly, 

 hitherto regarded solely as the model, has itself advanced 

 to meet the ver) different species regarded as its mimic. 

 For this attainment of a resemblance b}- mutual approach 

 he suggested the name ' Reciprocal Mimicry '.^ Dr. Dixey 

 also argued with great clearness and force ' that 

 reciprocal mimicry can only take place in Miillerian 

 associations, not in Batesian ; and that it is therefore . . . 

 "good evidence of the distastefulness of all the forms 

 between which it can be shown to occur"'.- The present 

 writer has urged* that the name 'Reciprocal Warning 

 Colours' is more appropriate than ' Reciprocal Mimicry', 

 inasmuch as Mimicry, as first explained b)' H. \\ . Bates, 

 is invariably a deceptive or Bseudaposematic Resem- 

 blance. In order to include Dr. Dixey's principle in the 

 terminolog)- proposed in iSqc/ the name ' Diaposematic 

 Resemblance' was, with Mr. Arthur Sidgwick's assistance, 

 suggested for it."* 



^ Trans. Eni. Soc, Loud., 1894, p. 298. 



- Trans. Ent. Soc, Lond., 1897, p. 328. In tlie above passage 

 Dr. Dixey is quoting from his earlier paper in Trans. Ent. Soc.^ Lond., 

 1896, p. 75. 



' Proc. Ent. Soc, Lond., 1897. PP- xxviii, xxix. 



* Colours of Animals, 1890, pp. 336 et sqq. 



•' Proc. Ent. Soc, Lond., 1897, P- xxix. n. . 



