From Roland Trimen 20 March [1868]
Summary
On attraction of males by females in moths. H. T. Stainton mentions a case.
| Author: | Roland Trimen |
| Addressee: | Charles Robert Darwin |
| Date: | 20 Mar [1868] |
| Classmark: | DAR 86: A92–3 |
| Letter no: | DCP-LETT-6030 |
To Roland Trimen 14 April [1868]
Summary
Has tried using dealers’ price-lists as a guide to sex ratios in Lepidoptera; finds numerous cases in which the sexes bring different prices and in virtually all of them the males are cheaper. This seems to confirm the impression of the field collectors.
Wishes RT good luck with natural history in S. Africa.
| Author: | Charles Robert Darwin |
| Addressee: | Roland Trimen |
| Date: | 14 Apr [1868] |
| Classmark: | Royal Entomological Society (Trimen papers, box 21: 68) |
| Letter no: | DCP-LETT-6117 |
To Roland Trimen 12 February [1868]
Summary
Is interested in the relative numbers of males and females of all animals; wants any instances of males, or females, being in excess.
| Author: | Charles Robert Darwin |
| Addressee: | Roland Trimen |
| Date: | 12 Feb [1868] |
| Classmark: | Royal Entomological Society (Trimen papers, box 21: 64) |
| Letter no: | DCP-LETT-5867 |
To Roland Trimen [16 March 1868]
Summary
Asks whether RT will call.
| Author: | Charles Robert Darwin |
| Addressee: | Roland Trimen |
| Date: | [16 Mar 1868] |
| Classmark: | Royal Entomological Society (Trimen papers, box 21: 66) |
| Letter no: | DCP-LETT-6015 |
Matches: 1 hit
- … 1868] . The first Monday before 20 March 1868 was 16 March. CD refers to the paper, ‘On some remarkable mimetic analogies among African butterflies’ ( R. Trimen 1868 ), that Trimen delivered at the 5 March 1868 meeting of the Linnean Society . For remarks on the paper and the discussion that followed, see the letter from A. R. Wallace, …
From Roland Trimen 13 April 1868
Summary
Extract from Émile Blanchard’s Metamorphoses, moeurs et instincts des insectes [1868], on attraction of males by female Lepidoptera, and possible explanation.
| Author: | Roland Trimen |
| Addressee: | Charles Robert Darwin |
| Date: | 13 Apr 1868 |
| Classmark: | DAR 85: B50–1 |
| Letter no: | DCP-LETT-6116 |
Matches: 1 hit
- … R. Wallace, 1 February [1865] ). Trimen possessed an earlier photograph of CD, without a beard, sent in 1863 (see Correspondence vol. 11, letter to Roland Trimen, 23 May [1863] and n. 3). Aside from minor misspellings, Trimen transcribed the extracts accurately. English translation of extract from Blanchard 1868 , …
To Roland Trimen 16 January [1868]
Summary
Thanks RT for drawings of ocelli, especially for the description of ocelli of S. African Saturniidae. Would like to know of any cases in which the ocelli are confined to the male, to illustrate better the case of the peacock.
| Author: | Charles Robert Darwin |
| Addressee: | Roland Trimen |
| Date: | 16 Jan [1868] |
| Classmark: | Royal Entomological Society (Trimen papers, box 21: 63) |
| Letter no: | DCP-LETT-5790 |
Matches: 1 hit
- … R. Wallace, 29 April [1867] , and letter to Charles Kingsley, 10 June [1867] . CD discussed why certain features such as the peacock’s tail might be transmitted to males of the species rather than females in Origin 4th ed. , pp. 240–1. CD’s notes on the peacock’s tail are in DAR 84. See also letter from Roland Trimen, 13 January 1868 , …
| letter | (6) |
| Darwin, C. R. | (4) |
| Trimen, Roland | (2) |
| Trimen, Roland | (4) |
| Darwin, C. R. | (2) |
| Darwin, C. R. | (6) |
| Trimen, Roland |
| 1868 | (6) |
