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From John Blackwall 10 August 1869
Summary
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.
Author: | John Blackwall |
Addressee: | Charles Robert Darwin |
Date: | 10 Aug 1869 |
Classmark: | DAR 82: 82–3 |
Letter no: | DCP-LETT-6860 |
From John Blackwall 8 September 1869
Summary
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].
Author: | John Blackwall |
Addressee: | Charles Robert Darwin |
Date: | 8 Sept 1869 |
Classmark: | DAR 82: A80–1 |
Letter no: | DCP-LETT-6884 |
Document type
letter | (2) |
Correspondent
Blackwall, John | |
Darwin, C. R. | (2) |