Lubbock, John to Darwin, C. R.
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Thanks for queen-bee larva and pupa.
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Nervous system of Coccus.
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Transcription
High Elms, | Farnborough, | Kent.
10 June 58
Dear Mr
I hope you are better. Many thanks for the Queen Bee larva & Pupa which will be
very useful some day.
The above two figures represent the posterior part of the subœsophageal ganglion, in the two species of Coccus whose nervous system I have examined. In C. persicæ? the ganglion end like a trident, whose 3 teeth pass gradually into the central stem and two lateral nerves.
In some specimens of both species I have seen the nerve a rise directly from the ganglion and not from the nerve b.
Believe me | Yours most sincerely | J Lubbock
C Darwin
Esq
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- f1 2284.f1
John Lubbock was preparing a paper on the digestive and nervous systems of the insect Coccus hesperidum (Lubbock 1858). His paper was read at a meeting of the Royal Society on 18 November 1858. An offprint of the paper marked by CD is in the Darwin Pamphlet Collection–CUL. - +
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CD was impressed to hear that important organs like nerves were subject to variation in their number and position. Lubbock's information was cited in Origin, p. 46.