From:
Thomas Vernon Wollaston
To:
Charles Robert Darwin
Date:
[12 Apr 1857]
Source of text:
DAR 181: 139
Summary:
Lists groups of insects absent from the Madeiran fauna.
Contributor:
Darwin Correspondence Project
Showing 1–2 of 2 items
Lists groups of insects absent from the Madeiran fauna.
He was unaware that varieties occurred proportionately more in large genera.
Recommends a work [Leonard Gyllenhaal, Insecta Suecica, 4 vols. (1808–27)] for tabulating varieties.
Lists "close geographical representatives of Europaean species" based on the species numbers [in T. V. Wollaston, Catalogue of the coleopterous insects of Madeira (1857)].