In this thread I hope, we’ll share info about all the big neurons, we find and identify.
I’ll start with the Lobula Plate Giant Neurons (yes, that’s their name).
There are 16 such neurons in each optic lobe. Below are pictures and locations of (almost) all of them. Some of them have already been identified by the researchers, other aren’t, so they are my guess.
Centrifugal Horizontal neurons - dorsal and ventral:
https://ngl.flywire.ai/?json_url=https://globalv1.flywire-daf.com/nglstate/5184971723505664
Horizontal System neurons - dorsal, equatorial and ventral:
(I believe, these are 2 of those; I wasn’t able to find the third one)
https://ngl.flywire.ai/?json_url=https://globalv1.flywire-daf.com/nglstate/6248682450059264
6 Vertical System neurons (green) and 3 Vertical System-like neurons:
https://ngl.flywire.ai/?json_url=https://globalv1.flywire-daf.com/nglstate/6113108116373504
Lobula Plate Tangential neuron H1 (shown for both optic lobes):
https://ngl.flywire.ai/?json_url=https://globalv1.flywire-daf.com/nglstate/5122782543216640
Lobula Plate Tangential neuron H2 - I wasn’t able to find and identify this one.
There are also other large cells in the LOP, e.g. some LPi and LPT, probably more.
All Centrifugal Horizontal and Horizontal System neurons arborize only in the layer 1 of the LOP.
H1 and H2 arborize only in the layer 2 of the ipsilateral LOP.
Verticular System neurons arborize only in the layer 4 of the LOP.
Also, most of these giant cells are covered with mergers like with barnacles. They could use some good cleaning 
