From:
Charles Robert Darwin
To:
Roland Trimen
Date:
[16 Mar 1868]
Source of text:
Royal Entomological Society (Trimen papers, box 21: 66)
Summary:
Asks whether RT will call.
Contributor:
Darwin Correspondence Project
From:
Roland Trimen
To:
Charles Robert Darwin
Date:
20 Mar [1868]
Source of text:
DAR 86: A92–3
Summary:
On attraction of males by females in moths. H. T. Stainton mentions a case.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Roland Trimen
Date:
[21 Mar 1868]
Source of text:
Royal Entomological Society (Trimen papers, box 21: 67)
Summary:
Arranges for RT to call.
Contributor:
Darwin Correspondence Project
From:
Roland Trimen
To:
Charles Robert Darwin
Date:
26 Mar 1868
Source of text:
DAR 81: 76, DAR 85: B61–2, DAR 84.1: 134–5
Summary:
Coloration in moths.
Quotes Achille Guénée on relative proportion of sexes in Phalaenites.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Roland Trimen
Date:
27 Mar [1868]
Source of text:
DAR 82: A119–20
Summary:
Thanks RT for letter which saves him from a "terrible mistake": that no moths were more brilliantly coloured beneath than above. Suggests revised version for comment. [See Descent 1: 397.]
Contributor:
Darwin Correspondence Project
From:
Roland Trimen
To:
Charles Robert Darwin
Date:
27 Mar 1868
Source of text:
DAR 82: A120v
Summary:
Approves CD’s revision on coloration of moths.
Impressed with apparent adverse tendencies: one toward sexual selection, the other toward protection.
Contributor:
Darwin Correspondence Project
From:
Roland Trimen
To:
Charles Robert Darwin
Date:
13 Apr 1868
Source of text:
DAR 85: B50–1
Summary:
Extract from Émile Blanchard’s Metamorphoses, moeurs et instincts des insectes [1868], on attraction of males by female Lepidoptera, and possible explanation.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Roland Trimen
Date:
14 Apr [1868]
Source of text:
Royal Entomological Society (Trimen papers, box 21: 68)
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.
Contributor:
Darwin Correspondence Project
From:
Roland Trimen
To:
Charles Robert Darwin
Date:
18 Nov 1869
Source of text:
DAR 82: 27–9
Summary:
Thanks CD for his orchid paper ["Fertilization of orchids", Collected papers 2: 138–56]. Comments briefly on orchids.
Discusses moths in which the wing underside is the most brightly coloured, and relates his observations on sexual selection by a moth, Syntomis.
Contributor:
Darwin Correspondence Project
