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Darwin Correspondence Project

From Frederick Smith   5 November 1869

British Museum

5th. Novr. 1869

My dear Sir

I have just read an article in the Entomologists Monthly Magazine for Novr. 1869. page 130 on Scolytus, the Elm Beetle— the paper is entitled. “Observations on the Œconomy of the British Species of Scolytus—By T. Algernon Chapman, M.D.—Abergavenny—

The Author observes “S. destructor, intricatus and pruni, are able to squeak audibly, by a rapid movement of the abdomen against the elytra, intricatus making the loudest noise—1

I just send this in case it may be useful to you—2

Yours very truly | Fredk Smith

CD annotations

1.2 Scolytus] underl pencil
Top of letter: ‘Scolytus’ pencil


The reference is to Chapman 1869; the author was Thomas Algernon Chapman. Scolytus pruni is now S. mali, the larger shothole borer.
CD cited the article in Descent 1: 379 n. 70, but he mistakenly gave the author’s name as ‘Algen’, and the journal as the ‘Edinburgh Monthly Magazine’.


Chapman, Thomas Algernon. 1869. Observations on the œconomy of the British species of Scolytus. Entomologist’s Monthly Magazine 6: 126–31.

Descent: The descent of man, and selection in relation to sex. By Charles Darwin. 2 vols. London: John Murray. 1871.


Sends reference to stridulation in an article about Scolytus by Dr Chapman "Observations on the economy of British species of Scolytus", Entomol. Mon. Mag. 6 (1870): 126–31.

Letter details

Letter no.
Frederick Smith
Charles Robert Darwin
Sent from
British Museum
Source of text
DAR 82: 4
Physical description
2pp †

Please cite as

Darwin Correspondence Project, “Letter no. 6972,” accessed on 28 February 2020,

Also published in The Correspondence of Charles Darwin, vol. 17