Adolf SPEYER

Adolph Speyer (28 April 1812, Arolsen – 14 October 1892, Rhoden, Waldeck ) was a German entomologist who specialised in Lepidoptera, especially Hesperiidae.

Dr. Adolph Speyer wrote more than 70 papers on butterflies and their distribution.

https://en.wikipedia.org/wiki/Adolph_Speyer