From:
John Blackwall
To:
Charles Robert Darwin
Date:
12 Feb 1868
Source of text:
DAR 82: A78–9
Summary:
Variability of sizes and colours in spiders; on proportion of sexes; courtship of spiders.
Contributor:
Darwin Correspondence Project
Showing 1–4 of 4 items
Variability of sizes and colours in spiders; on proportion of sexes; courtship of spiders.
Proportion of sexes in spiders; coloration.
Immature male spiders usually resemble in colour the females of their species of the same age. In some species colours of sexes differ when mature.
His observations on young of Theridion lineatum reveal no characteristics distinguishing one from another;
quotes N. Westring on stridulation in Theridion serratipes [see Descent 1: 339].