Dear M^r. Darwin

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.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