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Darwin Correspondence Project

To A. R. Wallace   9 July [1873]1

Down, | Beckenham, Kent.

July 9th

My dear Wallace

Dr. G. Krefft has sent me the enclosed from Sydney.2 A nurseryman3 saw a caterpillar feeding on a plant & covered the whole up, but, when he searched for the cocoon, was long before he cd. find it, so good was its imitation in colour & form to the leaf to which it was attached.

I hope that the World goes well with you.— Do not trouble yourself by acknowledging this, | Ever yours | Ch. Darwin


The year is established by the relationship between this letter and the letter from Gerard Krefft, 3 May 1873.
Gerard Krefft had enclosed a chrysalis with his letter of 3 May 1873.
Thomas William Shepherd (see letter from Gerard Krefft, 3 May 1873 and n. 6).


Forwards photograph, sent by [J. L. G.] Krefft, of a chrysalis attached to its food-plant; the chrysalis has adjusted its colour remarkably.

Please cite as

Darwin Correspondence Project, “Letter no. 8970,” accessed on 21 March 2018,

Also published in The Correspondence of Charles Darwin, vol. 21