From:
Charles Robert Darwin
To:
Otto Staudinger
Date:
6 May [1868]
Source of text:
DAR 147: 491
Summary:
Asks about the ratio of male to female Lepidoptera.
Contributor:
Darwin Correspondence Project
From:
Otto Staudinger
To:
Charles Robert Darwin
Date:
15 May 1868
Source of text:
DAR 82: A103-6
Summary:
Has often thought CD would find vast material for his ideas in study of entomology and Lepidoptera. His price-list of specimens proves only that collectors of Lepidoptera catch more males than females, not that there are more. He accounts for this by the less active habits of the females. [See Descent 1: 312.]
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Otto Staudinger
Date:
20 May 1868
Source of text:
DAR 147: 492
Summary:
Thanks for information on sex ratios of Lepidoptera.
Agrees that entomologists have best means of proving derivation of species.
Contributor:
Darwin Correspondence Project