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From:
Johann Friedrich Theodor (Fritz) Müller
To:
Charles Robert Darwin
Date:
[c. Jan 1874]
Source of text:
Nature , 19 February 1874, p. 309
Summary:

Agrees with Bates that neuter termites are not modified imagos (sterile females), but modified larvae (of both sexes).

Systematic relations of stingless honey-bees (Melipona and Trigona) are not yet well established.

Contributor:
Darwin Correspondence Project
From:
Johann Friedrich Theodor (Fritz) Müller
To:
Charles Robert Darwin
Date:
20 Apr [1874]
Source of text:
Nature , 11 June 1874, pp. 102–3
Summary:

FM gives his own observations of leaf-cutting ants, which support those of Thomas Belt in his book [The naturalist in Nicaragua (1873)]. [See 9223.] These ants feed only upon the fungus that grows upon the leaves that they carry to their nests.

He has caught a moth of the Glaucopidæ that when touched emitted a cloud of snow-white wool.

Observations on the stingless bees of Brazil.

Contributor:
Darwin Correspondence Project