The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. n.d. Additional facts to add to Walsh about adaptation. CUL-DAR81.148. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and edited by John van Wyhe 2.2022. RN1

NOTE: See record in the Darwin Online manuscript catalogue, enter its Identifier here. Reproduced with permission of the Syndics of Cambridge University Library and William Huxley Darwin. The volumes CUL-DAR80-86 contain material for Darwin's book Descent of man (1871).

[148]

Additional facts to add to Walsh about adaptation for male to hold on by.

Acilius sulcatus furrows in female thickly set with hair. Puncturing also - Spines, Trochanters & Spurs. — Incrassated legs, but this by no means always sexual (Kirby vol. 3 p. 333)

p. 336 Sucking plates & cushions to tarsi

p. 332 Either pair of all 3 pairs of legs elongated sometimes to an extraordinary degree

This must all earlier in discussion, as marked

Kirby, William and Spence, William. 1815-1826. An introduction to entomology. 4 vols. London: Longman, Rees, Orme, Brown, and Green. [Darwin Library-CUL] Darwin cited this in Descent 1: 343.

Citation: John van Wyhe, ed. 2002-. The Complete Work of Charles Darwin Online. (http://darwin-online.org.uk/)