I believe Torben Larsen would be the best person to advise you, since he has worked on Ethiopian butterflies. 

Hi Greg, African butterfly specialist Torben Larsen and fungus gnath specialist Olavi Kurina visited Ethiopia during recent years, albeit not on collecting missions. They may have information for you. Best, Freerk

Hi Greg!

You could contact Jean-Luc Boeve and Alain Pauly. They realized at least 2 missions about biodiversity of bees in Ethiopia. They could give you some contacts locally.

You could also look to some contacts at the HoA-REN.

Good luck!

http://www.hoarec.org/index.php/en/the-network/network-contacts

https://www.researchgate.net/profile/Alain_Pauly2

https://www.researchgate.net/profile/Jean-Luc_Boeve

Hi Greg,

Pierre-Claude Rougeot at MNHN studied Ethiopian Lepidoptera for quite some time and there must be a lot of data/information to be found in his bibliography.

best wishes

Thank you very much guys !!

Ask Philippe Le Gall (IRD )for anything concerning African entomology !