From John Lubbock 10 June 1858
High Elms, | Farnborough, | Kent.
10 June 58
Dear Mr Darwin
I hope you are better. Many thanks for the Queen Bee larva & Pupa which will be very useful some day. [DIAGRAMS HERE] C. persicæ? 1 b a b C. hesperidum 2 b a a b
The above two figures represent the posterior part of the subœsophageal ganglion, in the two species of Coccus whose nervous system I have examined.1 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.2
Believe me | Yours most sincerely | J Lubbock C Darwin Esq
Thanks for queen-bee larva and pupa.
Nervous system of Coccus.
Please cite as
Darwin Correspondence Project, “Letter no. 2284,” accessed on 24 February 2017, http://www.darwinproject.ac.uk/DCP-LETT-2284