The Complete Work of Charles Darwin Online

RECORD: Darwin, C. R. [1871-1874]. Abstract of Transactions of the Entomological Society of London, 1871 / Draft of Expression, chapter 9, p. 235. CUL-DAR89.51. Edited by John van Wyhe (The Complete Work of Charles Darwin Online, http://darwin-online.org.uk/)

REVISION HISTORY: Transcribed by Christine Chua and John van Wyhe, edited by John van Wyhe 11.2021. RN2

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-DAR87-90 contain material for Darwin's book Descent of man 2d ed. (1874-1877).

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Transact Ent. Soc 1871. Part V. p. XXXIX - 2 species of Libellulidæ in one of which sexes differ much, & the ♀ resemble both sexes of allied species, in which sexes do not differ.

p. do Female Ephemeridae full of eggs are devoured by Fishes, not so the ♂s. Westwood.

McLachlan, R. and Westwood, John Obadiah. 1871. [Libellulidae and Ephemera discussed]. Transactions of the Entomological Society of London [4th ser. 4] no. 5: xxxix. [CUL-DAR.LIB.PER-U455] PDF

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[Draft of Expression, chapter 9, p. 235.]

Decision or determination. [words excised:] The firm closure of the

mouth tends to give an expression

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