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From Edward Westey Janson   25 May 1868

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Summary

Sends specimens selected by H. W. Bates.

Among the Lamellicornes the family Dynastidae have most instances of presence of stridulating organs; Frederick Smith says that in Hymenoptera female Mutilla has stridulating faculty in high degree.

[Itemised bill for Coleoptera specimens enclosed.]

Author:  Edward Westey Janson
Addressee:  Charles Robert Darwin
Date:  25 May 1868
Classmark:  DAR 82: 99–100
Letter no:  DCP-LETT-6209

From E. W. Janson   4 June 1868

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Summary

Sends specimens of Coleoptera.

Quotes from W. F. Erichson [Naturgeschichte der Insecten Deutschlands 3: 927] on stridulating organs in Trox.

Author:  Edward Westey Janson
Addressee:  Charles Robert Darwin
Date:  4 June 1868
Classmark:  DAR 82: A101–2
Letter no:  DCP-LETT-6228
Document type
letter (2)
Author
Addressee
Correspondent
Darwin, C. R.[X]
Janson, E. W.[X]
Date
1868
05 (1)
06 (1)
letter